bluuebunny/crossref_metadata_2025 huggingface dataset:
Resonance Rayleigh scattering technique as a detection method for the RP‐HPLC determination of local anaesthetics in human urine
Authors: Liu Dan , Peng Jingdong , Liu Shaopu , Zhou Mingqiong , Zhang Jing , Li Aiping
Published: May 2016

A highly selective and sensitive method of reversed phase high‐performance liquid chromatography (RP‐HPLC) coupled with resonance Rayleigh scattering (RRS) was developed for the determination of procaine, bupivacaine and tetracaine. Separation of three local anaesthetics was achieved at 35 °C on a C18 column. The mobile phase was 30: 70 (v/v) acetonitrile/triethylamine–phosphoric acid buffer (pH 2.9) at flow rate of 0.3 mL/min. The RRS detection was conducted by taking advantage of the strong RRS enhancement of the local anaesthetics with erythrosine reaction in an acidic medium. Under optimum conditions, the limit of detection (S/N = 3) values were in the range of 2.4–11.2 ng/mL. Recoveries from spiked human urine samples were 95.8%–104.5%. The proposed method applied to the determination of local anaesthetics in human urine achieved satisfactory results. In addition, the mechanism of the reaction is fully discussed. Copyright © 2016 John Wiley & Sons, Ltd.
Eu2+‐induced enhancement of defect luminescence of ZnS
Authors: Xiao‐Bo Zhang , Fu‐Xiang Wei
Published: May 2016

The Eu2+‐induced enhancement of defect luminescence of ZnS was studied in this work. While photoluminescence (PL) spectra exhibited 460 nm and 520 nm emissions in both ZnS and ZnS:Eu nanophosphors, different excitation characteristics were shown in their photoluminescence excitation (PLE) spectra. In ZnS nanophosphors, there was no excitation signal in the PLE spectra at the excitation wavelength λex > 337 nm (the bandgap energy 3.68 eV of ZnS); while in ZnS:Eu nanophosphors, two excitation bands appeared that were centered at 365 nm and 410 nm. Compared with ZnS nanophosphors, the 520 nm emission in the PL spectra was relatively enhanced in ZnS:Eu nanophosphors and, furthermore, in ZnS:Eu nanophosphors the 460 nm and 520 nm emissions increased more than 10 times in intensity. The reasons for these differences were analyzed. It is believed that the absorption of Eu2+ intra‐ion transition and subsequent energy transfer to sulfur vacancy, led to the relative enhancement of the 520 nm emission in ZnS:Eu nanophosphors. In addition, more importantly, Eu2+ acceptor‐bound excitons are formed in ZnS:Eu nanophosphors and their excited levels serve as the intermediate state of electronic relaxation, which decreases non‐radiative electronic relaxation and thus increases the intensity of the 460 nm and 520 nm emission dramatically. In summary, the results in this work indicate a new mechanism for the enhancement of defect luminescence of ZnS in Eu2+‐doped ZnS nanophosphors. Copyright © 2016 John Wiley & Sons, Ltd.
Analysis of electron–vibrational interaction in interconfigurational 5d➔4f transition of Eu2+ ions in Na5Ca4(PO4)4F
Authors: Bhoyar Priyanka D. , Dhoble S.J.
Published: May 2016

In this paper, the photoluminescence properties of Eu2+‐activated greenish‐blue‐emitting halophosphate phosphor Na5Ca4(PO4)4F were studied to estimate electron–vibrational interaction (EVI) parameters such as the Huang–Rhys factor, effective phonon energy, Stokes shift and zero phonon line (ZPL) position for various concentrations of dopant. The validity of the results was established by modeling the emission spectra, which was found to be in good agreement with the experimental photoluminescence spectra. Copyright © 2016 John Wiley & Sons, Ltd.
Synthesis and photoluminescence characteristics of Sm3+‐doped Bi4Si3O12 red‐emitting phosphor
Authors: Lu Gonggong , Qiu Kehui , Li Junfeng , Zhang Wentao , Yuan Xiqiang
Published: May 2016

A series of novel red‐emitting Sm3+‐doped bismuth silicate phosphors, Bi4Si3O12:xSm3+ (0.01 ≤ x ≤ 0.06), were prepared via the sol–gel route. The phase of the synthesized samples calcinated at 800 °C is isostructural with Bi4Si3O12 according to X‐ray diffraction results. Under excitation with 405 nm light, some typical peaks of Sm3+ ions centered at 566, 609, 655 and 715 nm are found in the emission spectra of the Sm3+‐doped Bi4Si3O12 phosphors. The strongest peak located at 609 nm is due to 4G5/2–6H7/2 transition of Sm3+. The luminescence intensity reaches its maximum value when the Sm3+ ion content is 4 mol%. The results suggest that Bi4Si3O12:Sm3+ may be a potential red phosphor for white light‐emitting diodes. Copyright © 2016 John Wiley & Sons, Ltd.
Multicentre study of short-course radiotherapy and transanal endoscopic microsurgery for early rectal cancer
Authors: Smart C J , Korsgen S , Hill J , Speake D , Levy B , Steward M , Geh J I , Robinson J , Sebag-Montefiore D , Bach S P
Published: May 2016

Background

Organ-preserving treatment for early-stage rectal cancer may avoid the substantial perioperative morbidity and functional sequelae associated with total mesorectal excision (TME). The initial results of an organ-preserving approach using preoperative short-course radiotherapy (SCRT) and transanal endoscopic microsurgery (TEMS) are presented.

Methods

Patients with cT1–2N0 rectal cancers staged using high-quality MRI and endorectal ultrasonography received SCRT, with TEMS 8–10 weeks later, at four regional referral centres between 2007 and 2013. Patients were generally considered high risk for TME surgery (a small number refused TME).

Results

Following SCRT and TEMS, 60 (97 per cent) of 62 patients had an R0 resection. Histopathological staging identified 20 ypT0 tumours, 23 ypT1, 18 ypT2 and one ypT3. Preoperative uT category was significantly associated with a complete pathological response, which was achieved in 13 of 27 patients with uT0/uT1 disease and in five of 29 with uT2 (P = 0·010). Acute complications affected 19 patients, the majority following TEMS. No fistulas occurred and no stomas were formed. Surveillance detected four intraluminal local recurrences at a median follow-up of 13 months, all in patients with tumours staged as ypT2. Salvage TME achieved R0 resection in three patients and a stent was placed in one patient owing to co-morbidities.

Conclusion

SCRT with TEMS was effective in the majority of patients considered high risk for (or who refused) TME surgery.
Randomized clinical trial of postoperative chewing gum versus standard care after colorectal resection
Authors: Atkinson C , Penfold C M , Ness A R , Longman R J , Thomas S J , Hollingworth W , Kandiyali R , Leary S D , Lewis S J
Published: May 2016

Background

Chewing gum may stimulate gastrointestinal motility, with beneficial effects on postoperative ileus suggested in small studies. The primary aim of this trial was to determine whether chewing gum reduces length of hospital stay (LOS) after colorectal resection. Secondary aims included examining bowel habit symptoms, complications and healthcare costs.

Methods

This clinical trial allocated patients randomly to standard postoperative care with or without chewing gum (sugar-free gum for at least 10 min, four times per day on days 1–5) in five UK hospitals. The primary outcome was LOS. Cox regression was used to calculate hazard ratios for LOS.

Results

Data from 402 of 412 patients, of whom 199 (49·5 per cent) were allocated to chewing gum, were available for analysis. Some 40 per cent of patients in both groups had laparoscopic surgery, and all study sites used enhanced recovery programmes. Median (i.q.r.) LOS was 7 (5–11) days in both groups (P = 0·962); the hazard ratio for use of gum was 0·94 (95 per cent c.i. 0·77 to 1·15; P = 0·557). Participants allocated to gum had worse quality of life, measured using the EuroQoL 5D-3L, than controls at 6 and 12 weeks after operation (but not on day 4). They also had more complications graded III or above according to the Dindo–Demartines–Clavien classification (16 versus 6 in the group that received standard care) and deaths (11 versus 0), but none was classed as related to gum. No other differences were observed.

Conclusion

Chewing gum did not alter the return of bowel function or LOS after colorectal resection. Registration number: ISRCTN55784442 (http://www.controlled-trials.com).
Methylene blue and normobaric hyperoxia combination therapy in experimental ischemic stroke
Authors: Rodriguez Pavel , Zhao Jiang , Milman Brian , Tiwari Yash Vardhan , Duong Timothy Q.
Published: May 2016

Introduction

Ischemic stroke is a global burden that contributes to the disability and mortality of millions of patients. This study aimed to evaluate the efficacy of combined MB (methylene blue) and NBO (normobaric hyperoxia) therapy in experimental ischemic stroke.

Methods

Rats with transient (60 min) MCAO (middle cerebral artery occlusion) were treated with: (1) air + vehicle (N = 8), (2) air + MB (N = 8), (3) NBO + vehicle (N = 7), and (4) NBO + MB (N = 9). MB (1 mg/kg) was administered at 30 min, again on days 2, 7, and 14 after stroke. NBO was given during MRI (30–150 min) on day 0, and again 1 h each during MRI on subsequent days. Serial diffusion, perfusion and T2 MRI were performed to evaluate lesion volumes. Foot‐fault and cylinder tests were performed to evaluate sensorimotor function.

Results

The major findings were: (1) NBO + MB therapy showed a greater decrease in infarct volume compared to NBO alone, but similar infarct volume compared to MB alone, (2) NBO + MB therapy accelerated sensorimotor functional recovery compared to NBO or MB alone, (3) Infarct volumes on day 2 did not change significantly from those on day 28 for all four groups, but behavioral function continued to show improved recovery in the NBO + MB group.

Conclusions

These findings support the hypothesis that combined NBO + MB further improves functional outcome and reduces infarct volume compared to either treatment alone and these improvements extended up to 28 days.
White and gray matter fiber pathways in autism spectrum disorder revealed by ex vivo diffusion MR tractography
Authors: Wilkinson Molly , Wang Rongpin , van der Kouwe Andre , Takahashi Emi
Published: May 2016

Introduction

The goal of this project was to study the white and gray matter brain pathways of young children with autism spectrum disorder (ASD) and investigate how ASD brains differ from those of typically developing children of the same age.

Methods

High angular resolution resolution diffusion imaging tractography and diffusion tensor imaging tractography were used to analyze the brains of two 3‐year‐old children with ASD and two age‐matched controls.

Results

In the ASD brains, the callosal and corticopontine pathways were thinner overall and terminal areas in the cortical gray matter were significantly smaller. The ASD brains had more short‐range u‐fibers in the frontal lobe compared to the control brains. Gray matter pathways were found disorganized with less coherency in the ASD brain, specifically the lateral aspects of the middle part of the brain including motor areas, and both medial and lateral surfaces of the anterior frontal brain regions.

Conclusion

These findings show our tractography technique is useful for identifying differences in brain pathways between the ASD and control groups. Given that scanning the brain of 3‐year‐old children with or even without ASD is challenging, postmortem scanning may offer valuable insights into the connectivity in the brain of young children with ASD.
Factors influencing treatment team recommendations to review tribunals for forensic psychiatric patients
Authors: Martin Krystle , Martin Erica
Published: May 2016

It is the responsibility of forensic psychiatric hospitals to detain and treat patients, gradually reintegrating them into society; decisions to release patients must balance risk to the public with maintaining the least restrictive environment for patients. Little is known about the factors considered when making such decisions and whether these factors have been empirically linked to future risk of violence. The current study explores the factors predictive of forensic treatment teams' recommendations for patients under the care of the Ontario Review Board (ORB). Factors differ depending on level of security; decisions on medium secure units were influenced by the presence of active symptoms and patients' overall violence risk level and decisions made on minimum secure units were influenced by the number of critical incidents that occurred within the recommendation year. Understanding the factors used to make recommendations to the ORB tribunal helps treatment teams to reflect on their own decision‐making practices. Furthermore, the results serve to inform us about factors that influence length of stay for forensic psychiatric patients. Copyright © 2016 John Wiley & Sons, Ltd.
Cytotoxic, Antiangiogenic and Antitelomerase Activity of Glucosyl‐ and Acyl‐ Resveratrol Prodrugs and Resveratrol Sulfate Metabolites
Authors: Falomir Eva , Lucas Ricardo , Peñalver Pablo , Martí‐Centelles Rosa , Dupont Alexia , Zafra‐Gómez Alberto , Carda Miguel , Morales Juan C.
Published: May 2016

Resveratrol (RES) is a natural polyphenol with relevant and varied biological activity. However, its low bioavailability and rapid metabolism to its glucuronate and sulfate conjugates has opened a debate on the mechanisms underlying its bioactivity. RES prodrugs are being developed to overcome these problems. We have synthesized a series of RES prodrugs and RES sulfate metabolites (RES‐S) and evaluated their biological activities. RES glucosylated prodrugs (RES‐Glc) were more cytotoxic in HT‐29 and MCF‐7 cells than RES itself whereas RES‐S showed similar or higher cytotoxicity than RES. VEGF production was decreased by RES‐Glc, and RES‐disulfate (RES‐diS) diminished it even more than RES. Finally, RES‐Glc and RES‐diS inhibited hTERT gene expression to a higher extent than RES. In conclusion, resveratrol prodrugs are promising candidates as anticancer drugs. In addition, RES‐S showed distinct biological activity, thus indicating they are not simply RES reservoirs.
Stent luxation: Possible complication of subadventitial stenting in coronary chronic total occlusion revascularization
Authors: Dautov Rustem , Nguyen Can M , Rinfret Stéphane
Published: May 2016

The entry to the subadventitial space is not a mode of failure, but the road to success in many chronic total occlusion (CTO) percutaneous coronary intervention (PCI) cases. Long‐term clinical outcomes of subadventitial stenting are favorable and similar to intraluminal stenting. However, the subadventitial space histology and physiology remains different to the coronary true intraluminal space. We report a complication specific to stenting of the subadventitial space, where overlapping stents dislocated from one another, which resulted in late non‐occlusive stent thrombosis. We describe, for the first time in the literature, this complication, possible reasons behind, and the ways to avoid this potentially major mischief. © 2016 Wiley Periodicals, Inc.
A severe case of hidradenitis suppurativa
Authors: Cubas Vanessa , McArthur David
Published: May 2016

Key Clinical Message

Hidradenitis suppurativa (HS) is a chronic disfiguring skin disease affecting apocrine sweat glands, characterized by abscesses, cysts, or infections. There is currently no cure or a consistently effective treatment. HS is a challenging condition to diagnose and treat. We present a severe case to raise awareness of this disabling condition.
ChemInform Abstract: STUDIES ON PYRIMIDINE ANALOGS: REACTION OF ISOXAZOLO(3,4‐D)PYRIMIDINE WITH ACTIVE METHYLENE COMPOUNDS
Authors: PRASAD A. S. , SANDHU J. S. , BARUAH J. N.
Published: May 2016

Aus den Isoxazolo‐pyrimidinen (I) entstehen mit den methylenaktiven Verbindungen (II) die Pyridopyrimidine (III).
ChemInform Abstract: RING TRANSFORMATION OF 2‐SUBSTITUTED ISOTHIAZOL‐3(2H)‐ONES TO 3,4‐DIHYDRO‐1,3‐THIAZIN‐4(2H)‐ONES BY A NOVEL CARBENE ADDITION‐RING EXPANSION SEQUENCE
Authors: CROW W. D. , GOSNEY I. , ORMISTON R. A.
Published: May 2016

In Gegenwart eines RhodiunuIH‐Katulysators führen die Isothiazolone (I) mit den Diazoverbindungen (II) unter Ringerweiterung zu den Dihydrothiazinonen (H1).
ChemInform Abstract: A CONVENIENT SYNTHESIS OF 1,2‐BIS(TRIMETHYLSILOXY)ALKENES FROM α‐DIKETONES
Authors: RASMUSSEN J. K. , KREPSKI L. R. , HEILMANN S. M. , SMITH H. K. II , TUMEY M. L.
Published: May 2016

Die Umsetzung von α‐Diketonen mit Zink und Chlortrimethylsilan führt zu Bis‐ (trimethylsilyloxy)‐alkenen (ll).
ChemInform Abstract: A GENERAL SYNTHETIC METHOD FOR 2,6‐CYCLODECADIENONE SYSTEM BY INTRAMOLECULAR ALKYLATION OF PROTECTED CYANOHYDRINS
Authors: TAKAHASHI T. , NEMOTO H. , TSUJI J.
Published: May 2016

Schwierigkeiten der Synthese des (E,E)‐ l,Sfyclodecadien‐Systems der Germacrane werden erörtert.
ChemInform Abstract: MATRIX‐ISOLATION STUDIES BY ELECTRONIC SPECTROSCOPY OF GROUP IIIA METAL‐WATER PHOTOCHEMISTRY
Authors: DOUGLAS M. A. , HAUGE R. H. , MARGRAVE J. L.
Published: May 2016

Die Elektronenstrukturen der Zwischenprodukte der Hydratationsreaktion von Metallatomen der Gruppe IIIA (M...OH2‐Addukte) sowie ihrer photolytischen Folgeprodukte HMOH, MOH und M0 mit M: Al, Ga, In werden mitgeteilt.
ChemInform Abstract: THE EFFECT OF SILICON, ALUMINUM AND GERMANIUM ON THE STABILIZATION OF THE C14 POLYMORPH OF HAFNIUM‐MOLYBDENUM (HFMO2)
Authors: TROJKO R. , BLAZINA Z. , BAN Z.
Published: May 2016

HfMo2 kristallisiert je nach Wärmebehandlung im MgNi2‐ (P63/mmc), MgZn2‐ (P63/mmc) oder im MgCu2‐Typ (Fd3m).
ChemInform Abstract: STRUCTURAL STUDIES OF GADOLINIUM GALLIUM GARNET
Authors: SASVARI J. , WERNER P.‐E.
Published: May 2016

Die Strukturparameter von GdgGasOiz (la3d, Z=8) werden unter Berücksichtigung von Extinktionsfehlern verfeinert.
ChemInform Abstract: CRYSTAL STRUCTURE OF ANHYDROUS DISODIUM HYDROGEN PHOSPHATE
Authors: WIENCH D. M. , JANSEN M.
Published: May 2016

Erhitzen von mikrokristallinem Na2HPO4 mit trockenem Cyclohexan und POCl3 am Rückfluß liefert für die Röntgen‐ Strukturanalyse geeignete Einkristalle.
ChemInform Abstract: CRYSTAL STRUCTURE OF THE MIXED‐VALENCE IRON FLUORIDE HYDRATE FE3F8.2H2O
Authors: HERDTWECK E.
Published: May 2016

Die aus FeF3 unter hydrothermalen Hochdruckbedingungen in einer modifizierten Belt‐Apparatur (40proz. HF·aq/Pt/FeF3, ca. 30 kbar.
ChemInform Abstract: THERMODYNAMIC INVESTIGATIONS OF LIQUID (LITHIUM, CADMIUM) ALLOYS
Authors: LANGEN G. , SCHWITZGEBEL G. , RUPPERSBERG H.
Published: May 2016

Wie EMK‐Messungen an der Kette A im Temp‐Bereich 774‐905ger 4 zeigt die S‐förmige Kurve der partiellen Mischungsentropie des Li einen Wendepunkt, Während die integrale Mischungsentropie ein negatives Minimum erreicht.
ChemInform Abstract: THE THORIUM‐LEAD SYSTEM AND THE ALLOYING BEHAVIOR OF THORIUM WITH THE GROUP IVB ELEMENTS
Authors: PALENZONA A. , CIRAFICI S. , MANFRINETTI P.
Published: May 2016

Im Titelsystem werden, wie auch im System Th‐Sn, 4 intermediäre Phasen (I)‐(IV) nachgewiesen, von denen die beiden letzten bislang unbekannt waren.
ChemInform Abstract: PHASE EQUILIBRIUMS IN THE NEODYMIUM‐COPPER SYSTEM
Authors: CARNASCIALI M. M. , COSTA G. A. , FRANCESCHI E. A.
Published: May 2016

Im System Nd‐Cu werden die Verbindungen NdCu (670°C), NdCu, (840°C (′), Nd3Cu7 (825°C (′), NdCu‐z4 (745°C).
ChemInform Abstract: ON THE GADOLINIUM‐COPPER SYSTEM
Authors: CARNASCIALI M. M. , CIRAFICI S. , FRANCESCHI E.
Published: May 2016

Im Titelsystem werden die intermediären Phasen (I)‐( VI) nachgewiesen, während die Existenz von GdCu‐, nicht bestätigt werden kann.
ChemInform Abstract: ON THE MECHANISM OF THE CHROMIUM(III)‐PERIODATE REACTION
Authors: SULFAB Y.
Published: May 2016

Durch Untersuchung des Ein‐ flusses des lOg‐Zusatzes auf die Reaktionsgeschwindigkeit läßt sich zeigen, daß die Titelreaktion in saurer wäßriger Lösung (ungewöhnliche second‐order‐Abhängigkeit von der [Cr(III)aql) nicht nach einem von R. M. Noyes vorgeschlagenen Mechanismus abläuft.
ChemInform Abstract: CHEMISTRY IN FUMING NITRIC ACIDS ‐ I. NMR SPECTROSCOPIC STUDY OF PHOSPHORUS PENTAFLUORIDE, PHOSPHORODIFLUORIDIC ACID, AND PHOSPHORUS OXIDE (P4O10) IN THE SOLVENT SYSTEM 44 WT.% NITROGEN OXIDE (N2O4) IN 100% NITRIC ACID
Authors: ADDISON C. C. , BAILEY J. W. , BRUCE S. H. , DOVE M. F. A. , HIBBERT R. C. , LOGAN N.
Published: May 2016

Die Wechselwirkung der gelösten "Stoffe PFS, HPO, F2 und P4O", mit dem Lösungsmittelsystem 44 Gew.‐% N2O4 in lO0pr0z. HNO3 (HDA) wird mit Hilfe der 3′ P‐ und wF‐NM R‐ Spektroskopie untersucht.
ChemInform Abstract: MATRIX ISOLATION OF ARSENIC TETRACHLORIDE FLUORIDE (ASCL4F)
Authors: CLAUS F. , MINKWITZ R.
Published: May 2016

Wie Massen‐ und lR‐Matrixspektren (Ar) zeigen, erfolgt bei der Sublimation von [AsCl4]" [ASFÖ Tprimär die Abspaltung von AsFs sowie des bislang unbekannten AsCl4F (Vergleich der IR‐Spektren von As(′l4 Fund PCI′, F).
ChemInform Abstract: PREPARATION, CHARACTERIZATION, AND BRITTLENESS OF HIGH‐PURITY MOLYBDENUM
Authors: LORANG G. , AILLOUD P. , DEBOVE L. , ROUCHAUD J.‐C. , FEDOROFF M. , LANGERON J.‐P.
Published: May 2016

Durch eine Kombination von Ionenaustausch, Vakuumschmelzen und Glühen unter geringem OyPartialdruck sowie im UHV wird hochreines Mo hergestellt und die Reinheit durch Funken‐Massenspektrometrie, Aktivierungsanalyse und Widerstandsmessungen kontrolliert.
ChemInform Abstract: NEW TERNARY GERMANIDES RPD2GE OF THE YTTRIUM PALLADIUM SILICIDE (YPD2SI) TYPE
Authors: JORDA J. L. , ISHIKAWA M. , HOVESTREYDT E.
Published: May 2016

Die aus Elementgemengen durch lnduktionsschmelzen unter Ar (4 at) dargestellten Verbindungen (I) und (II) kristallisieren im YPdzSi‐Typ (Pnma, Z=4), einer geordneten Variante des Fe3C‐ Typs.
ChemInform Abstract: PARAMAGNETIC TRANSITION METAL CARBONYLS AND CYANIDES. PART 10. ELECTRON ADDITION TO VARIOUS CARBONYL(η5‐CYCLOPENTADIENYL)METAL HALIDES: AN ELECTRON SPIN RESONANCE STUDY
Authors: SYMONS M. C. R. , BRATT S. W. , WYATT J. L.
Published: May 2016

Werden die Komplexe (I) entweder als reine Verbindungen oder in Lösungsmitteln.
ChemInform Abstract: THERMODYNAMICS OF METAL COMPLEXES WITH LIGAND‐LIGAND INTERACTION, SIMPLE AND MIXED COMPLEXES OF COPPER(II) AND ZINC(II) WITH ADENOSINE 5′‐TRIPHOSPHATE AND L‐TRYPTOPHAN OR L‐ALANINE
Authors: ARENA G. , CALI R. , CUCINOTTA V. , MUSUMECI S. , RIZZARELLI E. , SAMMARTANO S.
Published: May 2016

Mittels potentiometrischer und calorimetrischer Messungen werden die thermodynamischen Parameter für die Bildung der binären und ternären Komplexe bestimmt.
ChemInform Abstract: NITROXYL‐MEDIATED ELECTROOXIDATION OF ALCOHOLS TO ALDEHYDES AND KETONES
Authors: SEMMELHACK M. F. , CHOU C. S. , CORTES D. A.
Published: May 2016

In Gegenwart von Lutidin werden prim. Alkohole durch Vermittelung des Nitroxyls (II) anodisch bei einem niedrigen Potential (ca.
ChemInform Abstract: REGIOSELECTIVE METALATIONS OF (METHOXYMETHOXY)ARENES
Authors: RONALD R. C. , WINKLE M. R.
Published: May 2016

Der Methoxymethyl‐ Substituent, z.B. in den Verbindungen (I)‐(IV) (Darstellung beschrieben), hat eine mäßig starke ortho‐dirigierende Wirkung bei Wasserstoff‐Metall‐Austauschreaktionen.
ChemInform Abstract: NUCLEOPHILIC ADDITION TO OLEFINS. 8. ADDITION OF PIPERIDINE, MORPHOLINE, AND N‐BUTYLAMINE TO α‐CYANO‐4‐NITROSTILBENE AND α‐CYANO‐2,4‐DINITROSTILBENE. KINETICS AND EQUILIBRIA IN 50% DIMETHYL SULFOXIDE‐50% WATER
Authors: BERNASCONI C. F. , MURRAY C. J. , FOX J. P. , CARRE D. J.
Published: May 2016

Während die Geschwindigkeit der Reaktion mit Butylamin und Piperidin durch den nucleophilen Angriff bestimmt wird.
ChemInform Abstract: (2 + 2) CYCLOADDITION OF 3,3‐DISUBSTITUTED CYCLOPROPENES TO NORBORNENE AND NORBORNADIENE
Authors: DOLGII I. E. , TOMILOV YU. V. , TSVETKOVA N. M. , BORDAKOV V. G. , NEFEDOV O. M.
Published: May 2016

[2+2]‐Cycloaddition von 3,3‐disubstituierten Cyclopropenen an Norbornen und Norbornadien.
ChemInform Abstract: POLY(1,6‐HEPTADIYNE), A FREE‐STANDING POLYMER FILM DOPABLE TO HIGH ELECTRICAL CONDUCTIVITY
Authors: GIBSON H. W. , BAILEY F. C. , EPSTEIN A. J. , ROMMELMANN H. , KAPLAN S. , HARBOUR J. , YANG X.‐Q. , TANNER D. B. , POCHAN J. M.
Published: May 2016

Untersucht wird sowohl die Polymerisation von Lö‐Heptadiin durch Variation des Shirakawa‐Katalysators (am besten Ti(OBu)4 /AlEt3 im Verhältnis l : l ‐4), der Temp. und des Waschlösungsmittels als auch die Struktur des Polymeren (wahrscheinlich über CH‐Brücken verbundene ö‐Ringe, möglicherweise mit Radikaldefektstellen, sogenannten Solitonen).
ChemInform Abstract: DIRECTED ORTHO METALATION OF TERTIARY AROMATIC AMIDES. A NEW N‐HETERO RING ANNELATION METHOD AND SYNTHESIS OF PHENANTHROQUINOLIZIDINE AND ‐INDOLIZIDINE ALKALOIDS
Authors: IWAO M. , MAHALANABIS K. K. , WATANABE M. , DE SILVA S. O. , SNIECKUS V.
Published: May 2016

Durch o‐Lithiierung des Phenanthrencarbonsäureamids (I) mit Pyridin‐ 2‐ bzw. N‐Benzyl‐pyrrol‐2‐carbaldehyd werden die Lactone (II) erhalten.
ChemInform Abstract: SYNTHESIS OF THE BENZOTRICYCLO(3.2.0.02,7)HEPTENE RING SYSTEM VIA THE INTRAMOLECULAR (2 + 2)‐CYCLOADDITION REACTION OF SOME CYCLOPROPENE DERIVATIVES
Authors: PADWA A. , RIEKER W. F. , ROSENTHAL R. J.
Published: May 2016

Die Thermolyse der Cyclopropene (I) (Untersuchung der Kinetik) liefert in einer neuartigen intramolekularen Cycloaddition die Benzotricycloheptene (II); (IIb) bzw. (IId) können auch durch direkte Photoreaktion aus (Ib) bzw. (Id) erhalten werden, und (IIa) bzw. (IIb) sind auch durch sensibilisierte Photoreaktion der Benzonorbornadiene (III) [Darstellung (aus entsprechenden ("yclopentadienen mit Dehydrobenzol) beschriebenl zugänglich.
ChemInform Abstract: 2‐INDANOL FORMATION FROM PHOTOCYCLIZATION OF α‐ARYLACETOPHENONES
Authors: MEADOR M. A. , WAGNER P. J.
Published: May 2016

Mit einer Quantenausb.
ChemInform Abstract: PHOTOCHEMISTRY OF TRICARBONYL(η4‐CYCLOOCTATETRAENE)IRON IN A METHANE MATRIX AT 12 K. INFRARED SPECTROSCOPIC EVIDENCE FOR PHOTOISOMERIZATION AND CARBON MONOXIDE EJECTION REACTIONS
Authors: HITAM R. B. , NARAYANASWAMY R. , REST A. J.
Published: May 2016

IR‐Untersuchungen beweisen, daß Photolyse von (I) mit "Wannen"‐Konformation zur Bildung des Isomeren (II) mit "Sessel"‐Konformation über eine intermediäre Fe(η2‐C8H8) (CO)3‐Spezies führt.
ChemInform Abstract: PHOTOOXYGENATION OF 1,2‐DIARYLCYCLOPROPANES: FORMATION OF 3,5‐DIARYL‐1,2‐DIOXOLANES VIA PHOTOINDUCED ELECTRON TRANSFER
Authors: MIZUNO K. , KAMIYAMA N. , OTSUJI Y.
Published: May 2016

Elektronemeiche 1,2‐I?arylcyclopropane (I) lassen sich photochemisch zu den I ,Z‐Dioxolanen (II) und (III) oxidieren, die elektronenärmeren I ,2‐Diarylcyclopropane (IV) hingegen werden in Gemische aus den Hydroxyketonen (V).
ChemInform Abstract: CHEMICAL PROPERTIES OF PHENANTHROLINEQUINONES AND THE MECHANISM OF AMINE OXIDATION BY O‐QUINONES OF MEDIUM REDOX POTENTIALS
Authors: ECKERT T. S. , BRUICE T. C.
Published: May 2016

Bei pH‐Werten über 8 erfahren die Titelverbindungen (I)‐(III) unter Luftabschluß eine Ringkontraktion z.B. zu (IV).
ChemInform Abstract: NOVEL FUNCTIONAL‐GROUP SELECTIVITY IN REDUCTIONS WITH LITHIUM BOROHYDRIDE IN MIXED SOLVENTS CONTAINING METHANOL
Authors: SOAI K. , OOKAWA A. , HAYASHI H.
Published: May 2016

Mit Lithiumboranat in Diglyme‐Methanol können hochselektive Reduktionen durchgeführt werden.
ChemInform Abstract: VINYLACETYLENIC YNAMINES AS DEHYDRATING REAGENTS
Authors: KORMER M. V. , TOLCHINSKII S. E. , MARETINA I. A.
Published: May 2016

Die Eninamine (I) addieren in exothermer Reaktion Wasser unter Bildung der Alkensäureamide (II).
ChemInform Abstract: SYNTHESIS OF AMINALS AND AMINAL ACETALS OF Ω‐DIMETHYLAMINOPOLYENALS
Authors: KRASNAYA ZH. A. , STYTSENKO T. S.
Published: May 2016

Ein literaturbekanntes Syntheseverfahren für (III) mit n=Iwird auf die Herstel‐ Iung der höheren Homologen mit n=2 ‐ 4 angewendet.
ChemInform Abstract: A CONVENIENT METHOD FOR THE PREPARATION OF ALKYL IODIDES FROM ALCOHOLS
Authors: IMAMOTO T. , MATSUMOTO T. , KUSUMOTO T. , YOKOYAMA M.
Published: May 2016

Alkohole (I) werden mit Natriumiodid und Polyphosphorsätnre‐trimethylsilylester, der aus Phosphorpentoxid und Hexamethyldisiloxan gut zugänglich ist.
ChemInform Abstract: NEW N‐(2‐ETHOXYETHYL)‐N‐(4‐PHENOXYBENZYL)DICHLOROACETAMIDES AS POTENT ANTIAMOEBIC AGENTS
Authors: COZZI P. , MENCHETTI P. , FUSAR D. , DE CARNERI I. , TRANE F. , BIANCHI A.
Published: May 2016

Die Darstellungen der Titelverbindungen (II), (IV), (VII), (IX), (XI) und (XIII), des Pyridins (XV), des N‐2‐Methoyethyldichloracetamids (XVII) und weiterer Verbindungen in jeweils einstufiger Synthese werden beschrieben.
ChemInform Abstract: UNUSUAL COURSE OF THE REACTION OF PENTABROMOBENZYL BROMIDE WITH DIETHYL SODIOMALONATE
Authors: RUMYANTSEVA K. S. , TANASEICHUK B. S. , SHISHKIN V. N. , ZOTOVA L. V.
Published: May 2016

Pentabrombenzylbromid ( I) und Natriumdiethylmalonat (II) reagieren in EtOH unerwartet, d.h. unter O‐Alkylierung zu dem Benzylester (III).
ChemInform Abstract: AMIDOALKYLATING PROPERTIES OF BENZYLIDENEURETHANE
Authors: KHENKINA T. V. , MOCHALIN V. B.
Published: May 2016

Die Titelverbindung; (I) wird mit einer Reihe von aliphatischen und aromatischen Reagenzien zu den N‐ Benzylcarbamaten (III), (V), (VII), (IX), (XI) und (XII) umgesetzt.
ChemInform Abstract: Some New 2,3‐Dialkylthio‐1,4‐benzoquinones.
Authors: WLAISLAW B. , MARZORATI L. , DI VITTA C.
Published: May 2016

Da die direkte Umsetzung von 2,3‐Dichlorbenzochinon (I) mit Mercaptiden zu Tetraalkylthiobenzochinonen führt, werden die 2,3‐Dialkylthio‐benzochinone (V) auf dem Umweg über die Diels‐Alder‐Addukte (III) und (IV) hergestellt.
ChemInform Abstract: SYNTHESIS AND WITTIG‐HORNER REACTIONS OF 1‐(FUNCTIONALLY)SUBSTITUTED 2,2‐DIMETHYLPROPANEPHOSPHONIC ESTERS (1‐T‐BUTYL‐SUBSTITUTED PHOSPHONIC ESTERS)
Authors: SCHAUMANN E. , FITTKAU S.
Published: May 2016

Aus Diethoxyphosphinylketen‐S,S‐acetalen (I) werden mit Lithiumdimethylcuprat 2,2‐Dimethylpropanphosphonate (III) hergestellt, die in einer Wittig‐Horner‐Reaktion mit Aldehyden (IV) zu Olefinen (V) umgesetzt werden.
ChemInform Abstract: NEW ROUTE TO DIMETHYLNAPHTHALENES INVOLVING CYCLIZATION OF YLIDENEMALONODINITRILES AND ETHYL YLIDENECYANOACETATES; PART 1. SYNTHESIS OF 1,2‐, 1,6‐, AND 2,7‐DIMETHYLNAPHTHALENES
Authors: SEPIOL J.
Published: May 2016

Durch Kondensation der Ketone (I) mit Malononitril (II) bzw. Cyanessigsäureethylester (X) werden gemäß Formelschema die Naphthalin‐ "Derivate (VIII), (IX), (XV) und (XVI) hergestellt.
ChemInform Abstract: SYNTHESIS AND PROPERTIES OF LIQUID‐CRYSTAL COMPOUNDS FROM NAPHTHALENE DERIVATIVES
Authors: MURZA M. M. , SHTAKIN V. S. , KURAMSCHINA E. A.
Published: May 2016

Die Umsetzung der N(′hloracetyhnuphthylamine (I) mit 4‐Hydroxy‐benzaldehyd (II) liefert die Formylverbindtmgen (III), die mit Alkoxyanilinen (IV) zu den Schiffschen Basen (V) kondensiert werden.
ChemInform Abstract: NONSTEROIDAL ANTIINFLAMMATORY AGENTS. 15. 6‐CHLORO‐5‐CYCLOPENTYLMETHYLINDAN‐1‐CARBOXYLIC ACIDS AND THEIR ANTIPODES
Authors: BIERE H. , RUSSE R. , SEELEN W. , BOETTCHER I. +
Published: May 2016

Die Darstellung der Titelverbindung (VIII) und ihre Trennung in die Antipoden mit Cinchonidin werden beschrieben.
ChemInform Abstract: N,N′‐BIS(PERFLUOROETHYL)THIADIAZIRIDINE
Authors: KUMAR R. C. , SHREEVE J. M.
Published: May 2016

In Gegenwart von Dischwefeldichlorid ( ll) reagiert die Azoverbindung (I) bei der Photolyse zu Thiadiaziridin (III).
ChemInform Abstract: Synthese und Stereochemie einiger β‐Aziridinsäuren und 4‐Aminolactone.
Authors: NOVKOVA S. , BLAGOEV B.
Published: May 2016

Die Grignard‐Reagenzien (I) reagieren stereoselektiv mit den Aziridinen (II) beim Erhitzen in entsprechendem Lösungsmittel (Methylal bzw. nach Literaturangabe) und anschließender Hydrolyse in Salzsäure zu den Hydrochloriden der Säuren (III).
ChemInform Abstract: STUDIES OF SUBSTITUTED BUTAN‐ AND BUTENOLIDES. II. SYNTHESIS OF 3‐(2‐OXOPROPYL)‐ AND 3‐((ETHOXYCARBONYL)METHYL)BUTANOLIDES BASED ON THE REACTION OF 2‐BUTENOLIDE WITH CARBON ACIDS
Authors: NAIDENOV YU. V. , BADOVSKAYA L. A. , IGNATENKO A. V.
Published: May 2016

Die Reaktion von 2‐Butenolid (1) mit Acetessigester ( 11a) oder Acetylace‐ ton (IIb) in Gegenwart von Natriumalkoholat führt zur Bildung des Gemisches der offenkettigen Verbindungen (IIIa) bzw. (IIIb) und des in Position 4 funktionalisierten Butanolids (IVa).
ChemInform Abstract: SYNTHESIS OF (3‐FURANYL)METHYL DERIVATIVE
Authors: OKABE M. , TAMAGAWA H. , TADA M.
Published: May 2016

Die substituierten 3‐Methyl‐furane (IV), (V) und (VI) werden durch radikalische Cyclisierung des Acetals (II) mit Hilfe eines C0(I)‐Komplexes dargestellt.
ChemInform Abstract: A HIGHLY EFFICIENT AND CONVENIENT LACTONIZATION PROCEDURE FOR STRAINED TRANS‐FUSED LACTONES
Authors: STREKOWSKI L. , VISNICK M. , BATTISTE M. A.
Published: May 2016

trans‐iy‐Hydroxycarbonsäilren (I) und (IV) werden durch Umsetzung mit Z‐("hlor‐I ‐methylpyridiniumiodid (III) in Gegenwart von Triethylamin nahezu quantitativ in Lactone (III) bzw. (V) übergeführt.
ChemInform Abstract: ENAMINONES DERIVED FROM PUMMERER′S KETONE
Authors: KOEHL M. + , GEITA E. , FLEISCHHACKER W.
Published: May 2016

Das Pummerer‐Keton (I) wird mit Dimethylformamiddimethylaeetal (II) in die Enaminoketone (III) übergeführt.
ChemInform Abstract: SYNTHESIS OF CYCLOHEPTA(B)THIOPHENE DERIVATIVES. PART‐II
Authors: SEN P. K. , KUNDU B.
Published: May 2016

Synthesis of Cyclohept?blthiophen Derivatives.
ChemInform Abstract: SILYL VARIATION OF N‐AMIDOALKYLATION
Authors: ANISIMOVA N. A. , BELAVIN I. YU. , ORLOVA N. A. , SERGEEV V. N. , SHIPOV A. G. , BAUKOV YU. I.
Published: May 2016

In den N‐Trimethylsilylderivaten (I), (IV) oder (VI) Iäßt sich die Trimethylsilylgruppe durch Umsetzung mit N‐(′hlormethylamiden gegen den Amidomethylrest austauschen.
ChemInform Abstract: HETEROCYCLIC DERIVATIVES OF PUMMERER′S KETONE
Authors: KOEHL M. + , FLEISCHHACKER W.
Published: May 2016

Das Pummerer‐Keton (I) reagiert in einer Schmidt‐Reaktion zum Gemisch der Lactame (II) und (III).
ChemInform Abstract: 1‐(2‐IMINO‐5,5‐DIMETHYL‐2,5‐DIHYDRO‐4‐FURYL)IMIDAZOLE
Authors: SKVORTSOV YU. M. , MAL'KINA A. G. , TROFIMOV B. A.
Published: May 2016

Das Acrylnitril (I) wird unter relativ milden Bedingungen zu der Titelverbindung (II) cyclisiert.
ChemInform Abstract: H2‐ANTIHISTAMINICS. XV: 1,N‐BIS(2‐IMIDAZOLYL)ALKANES
Authors: BUSCHAUER A. , WEGNER K. , SCHUNACK W.
Published: May 2016

Imidazolylalkane (VIII) und (X) werden ausgehend von Imidoestern (I) und Dihydroxyaceton (II) auf dem angegebenen Weg hergestellt.
ChemInform Abstract: CONDENSATION OF 5‐CINNAMOYL‐6‐METHOXY‐ AND 6‐CINNAMOYL‐5‐METHOXY‐2,3‐DIPHENYLBENZOFURAN DERIVATIVES WITH CYANOACETAMIDE, ETHYL CYANOACETATE AND MALONONITRILE
Authors: ABD EL RAHMAN A. H. , KANDEEL E. M.
Published: May 2016

Während die Cinnamoylverbindungen (I) mit Cyanoacetamid (III) bzw. Cyanessigsäureester (IV)/NH4O‐Ac zu den Pyridonen (II) umgesetzt werden.
ChemInform Abstract: (3‐PYRIDYL)METHYLIDENE‐ AND α‐(3‐PYRIDYL)ARALKYLHYDRAZIDES OF DISUBSTITUTED GLYCOLIC ACIDS
Authors: AVDEEV V. B. , BERDINSKII I. S. , BELYKH Z. D. , ROZENBLAT G. F.
Published: May 2016

Durch Kondensation von 3‐Formylpyridin (I) mit dem Hydrazid (II) wird nach Literaturverfahren das Pyridylmethylenhydrazid (III) erhalten, das mit BuMgBr bzw. mit PhLi unter Reaktion sowohl an der Estergruppe wie an der Azomethinfunktion das Dibutylglykolsäurehydrazid (IV) bzw. das Benzilsäurehydrazid (V) liefert.
ChemInform Abstract: CYANOETHYLATION OF 2‐PIPERIDINOMETHYLENECYCLOHEXANONE
Authors: DYUSENOVA Z. I. , ERZHANOV K. B. , POLATBEKOV N. P. , ALEKSEEVA N. N.
Published: May 2016

Die Titelverbindung (I) reagiert mit Acrylnitril (II) je nach dem Molverhältnis der Reaktionspartner zu den mono‐bis ‐tetracyanethylsubstituierten Derivaten (III) bis (VI), wobei bei der Bildung des Produktes (VI) die Piperidinylgruppe durch die Cyanethylgruppe ersetzt wird.
ChemInform Abstract: Reactions of Ketimines and Ethylphenylpropiolate. Synthesis of 4‐Oxodihydropyridines.
Authors: BARLUENGA J. , ORTIZ F. L. , PALACIOS F. , GOTOR V.
Published: May 2016

Bei der Umsetzung der Ketimine (I) mit (II) entstehen ausschließlich die 4‐Oxodehydropyridine (iII), nicht jedoch die 2‐Oxo‐Derivate.
ChemInform Abstract: THERMAL DEHYDROCYCLIZATION OF α‐BENZYL(O‐TOLYL)AZINES AND ELECTROPHILIC SUBSTITUTION OF BENZ(2,3)INDOLIZINES
Authors: SOLDATENKOV A. T. , BAGDADI M. V. , RADZHAN P. K. , BRINDKHA O. S. , EDOGIAVERIE S. L. , FOMICHEV A. A. , PROSTAKOV N. S.
Published: May 2016

2‐o‐TolyIpyridin (I) wird nach Literaturverfahren (Methode A) zu dem Azafluoren (II) cyclodehydriert.
ChemInform Abstract: SYNTHETIC STUDIES WITH 2‐(ARYLMETHYLENE)INDAN‐1,3‐DIONES
Authors: MOUSTAFA A. H. , EL‐ABBADY S. A. , GADO S. H. , EL‐BORAI M. A.
Published: May 2016

Arylmethylenindandione (I) reagieren mit Cyanacetamiden.
ChemInform Abstract: UNSATURATED CROWN ETHERS. 2. DIOXETANO‐CROWN ETHERS. STABILIZATION THROUGH COMPLEXATION WITH METAL IONS
Authors: INOUE Y. , OUCHI M. , HAYAMA H. , HAKUSHI T.
Published: May 2016

Die Photooxidation des Kronenethers (I) liefert das Dioxetan (II); aus dem Kronenether (III) wird das Bis‐dioxetan (IV) erhalten.
ChemInform Abstract: OBSERVATIONS ON THE SCOPE OF AN INTRAMOLECULAR DIRECTED ALDOL CONDENSATION. A NEW SYNTHESIS OF EIGHT‐MEMBERED RINGS
Authors: COCKERILL G. S. , KOCIENSKI P.
Published: May 2016

Das eis‐Dioxolan (Ia) reagiert in Gegenwart von Titantetrachlorid in selektiver Weise zum cis‐Tetrahydropyranon (IIa); dagegen Iiefert die trans‐Verbindung (Ib) ein l. : 1‐Gemisch der Verbindungen (IIa) und (IIb).
ChemInform Abstract: SIMPLE METHOD FOR THE PREPARATION OF IODOTRIMETHYLSILANE
Authors: LISSEL M. , DRECHSLER K.
Published: May 2016

Chlortrimethylsilan (I) wird mit wasserfreiem Lithium‐iodid in Abwesenheit eines Lösungsmittels in lodtrintcthylsilan (II) umgewandelt.
ChemInform Abstract: ALKALI METAL DERIVATIVES OF OCTAMETHYLTRISILADIAZANE. UNUSUALLY SHORT SODIUM‐CARBON CONTACTS IN THE MOLECULAR STRUCTURE OF THE DISODIUM SALT
Authors: BRAUER D. J. , BUERGER H. + , GESCHWANDTNER W. , LIEWALD G. R. , KRUEGER C. +
Published: May 2016

Durch Umsetzung von Octamethyltrisiladiazan (I) mit Natrium‐, Kalium‐ oder Cäsittmamid, mit Kalium oder Rubidium in Gegenwart von Styrol oder mit elementarem Cäsium allein werden die Alkalimetallderivute (II) hergestellt.
ChemInform Abstract: TRIS(TRIMETHYLSILYL)ALUMINUM AND TRANSITION‐METAL CATALYSTS. SILYLATION OF ALLYL ACETATES
Authors: TROST B. M. , YOSHIDA J. , LAUTENS M.
Published: May 2016

Die durch Pd‐ oder Mo‐katalysierte Silylierung von verschiedenen Allylacetaten wie (I), (IV), (VII), (X), (XII) oder (XIV) mit Tris‐[trimethylsilyll‐aluininium (II) wird untersucht (Tabelle mit Ausb.‐Angaben und Isomerenverteilung).
ChemInform Abstract: CHEMISTRY OF ORGANOSILICON COMPOUNDS. 176. REVERSIBILITY IN THE HOMOLYTIC AROMATIC SUBSTITUTION WITH SILYL AND GERMYL RADICALS
Authors: SAKURAI H. , KIRA M. , SUGIYAMA H.
Published: May 2016

Die radikalisch induzierte Zersetzung des 1,4‐Bis‐trimethylsilylcyclohexadiens(I) bei 0°C liefert das 1,4‐Bis‐ 13] trimethylsilylbenzol (II), bei 130°C hingegen erhält man neben (II) das m‐Isomere (IV) und das Phenyltrinrcthylsilan (III).
ChemInform Abstract: VINYL ESTERS OF PHOSPHORUS ACIDS. XXV. INDUCTIVE EFFECTS OF VINYLOXY RADICALS
Authors: KASUKHIN L. F. , PONOMARCHUK M. P. , KOLODKA T. V. , MALENKO D. M. , KIM T. V. , REPINA L. A. , KISELEVA E. I. , GOLOLOBOV YU. G.
Published: May 2016

Auf den im Formelschema angegebenen Wegen werden in Gegenwart von Triethylamin die Vinylphosphite (III), (VI), (IX), (XII) und (XIV) mit Substituenten im Vinylrest hergestellt (weitere Beispiele im Original).
ChemInform Abstract: SELECTIVE DEMETHYLATION OF MIXED ALKYL METHYL PHOSPHATES
Authors: JACOB L. , JULIA M. , PFEIFER B. , ROLANDO C.
Published: May 2016

Methylalkylphosphate (I), (IV) und (VI) werden durch Behandlung mit Dimethylsulfid (II) in Methansulfonsäure selektiv demethyliert.
ChemInform Abstract: HYDROXY FUNCTIONALIZED TERTIARY PHOSPHINES
Authors: KAWAKAMI Y. , MURTHY R. A. , YAMASHITA Y.
Published: May 2016

Die funktionalisierten tertiären Phosphine (V) werden durch reduktive Entschwefelung der entsprechenden Alkylarylphosphinsulfide (III) bzw. (IV) erhalten.
ChemInform Abstract: CYCLIC ORGANOPHOSPHORUS COMPOUNDS; XIX. A CONVENIENT SYNTHESIS OF 7‐AZA‐2,6‐DIOXA‐1‐PHOSPHABICYCLO(2.2.2)OCTANES BY THE CYCLIZATION OF TRANS‐2‐AMINO‐5‐CHLOROMETHYL‐2‐OXO‐1,3,2‐DIOXAPHOSPHORINANES
Authors: EDMUNDSON R. S.
Published: May 2016

Die Chlorierung des cyclischen ‐ Phosphits (I) führt zum Phosphoresterchlorid (II), aus dem die Amide (III) und nachfolgend die.
ChemInform Abstract: SYNTHESIS OF 2,2,2‐TRISUBSTITUTED 5‐(TRIFLUOROMETHYL)‐Δ4‐1,3,4,2‐OXADIAZAPHOSPHOLINES AND THEIR POTENTIALITY AS PRECURSORS OF TRIFLUOROACETONITRILE IMINES
Authors: TANAKA K. , IGARASHI T. , MITSUHASHI K.
Published: May 2016

Die Trifluoracetylhydrazine (I) reagieren mit PCIS zu den Trichloroxadiazaphospholinen (II), die mit O‐Silyl‐p‐kresol?lhdie Trikresyloxadiazaphosphaline (IV) liefern.
ChemInform Abstract: REACTIONS OF SILYL DITHIOPHOSPHATES WITH THIONYLAMINES
Authors: KUTYREV G. A. , LYGIN A. V. , CHERKASOV R. A. , PUDOVIK A. N.
Published: May 2016

Silyl‐dithiophosphate reagieren primär mit Thionylaminen, unabhängig von der Art der Substituenten der reagierenden Stoffe, unter Anlagerung des Phosphats an die S=O‐Bindung des Aminrestes.
ChemInform Abstract: ALPHA‐LITHIATION OF N‐ALKYL GROUPS IN PYRAZOLES
Authors: KATRITZKY A. R. , JAYARAM C. , VASSILATOS S. N.
Published: May 2016

Das Trimethylpyrazol ( l) wird von Butyl‐Li an der N‐Methylgruppe lithiiert: mit den entsprechenden Elektrophilen (E.R.) erhält man die Verbindungen (II) [mit einem Überschuß an Benzoylchlorid anstelle von (lld) den Ester (III), Ausb. 85%].
ChemInform Abstract: THE CHEMISTRY OF QUADRIVALENT LANTHANOIDS. PART 2. PREPARATION AND PROPERTIES S OF CERIUM TETRACHLORIDE COMPLEXES AND A COMPARISON WITH THEIR URANIUM ANALOGS
Authors: BARRY J. , DU PREEZ J. G. H. , GERBER T. I. , LITTHAUER A. , ROHWER H. E. , VAN BRECHT B. J.
Published: May 2016

Ausgehend vom Di‐( 2‐methoxyethyl)‐ether‐Komplex von HZCeCIÖ werden durch Zugabe der Liganden die Ce(IV)‐chloridkomplexe (I) und (II) dargestellt (keine Ausb.‐ Angaben).
ChemInform Abstract: Synthese und NMR‐Spektren 1H, 3C, ′ 5N, 73Ge 1‐substituierter Germatrane und 3‐Homogermatrane.
Authors: ZELCHAN G. I. , LAPSINYA A. F. , SOLOMENNIKOVA I. I. , LUKEVITS E. , LIEPIN'SH E. E. , KUPCHE E. L.
Published: May 2016

1‐R‐Germatrane (III) und 1‐R‐B‐Homogermatrane (VI) lassen sich ‐ wie im Formelschema angegeben ‐ nach verschiedenen Verfahren herstellen.
ChemInform Abstract: STUDIES ON THE INTERACTION OF INORGANIC TIN COMPOUNDS WITH METHYL 4,6‐O‐BENZYLIDENE‐α‐D‐GLUCOPYRANOSIDE AND RELATED MOLECULES
Authors: BLUNDEN S. J. , CUSACK P. A. , SMITH P. J. , BARNARD P. W. C.
Published: May 2016

Aquimolare Lösungen von wasserfreiem SnCl4 und dem Pyranosid (I) in nicht koordinierenden Lösungsmitteln wie Chloroform oder Dichlormethan bilden einen neutralen 1:1‐Komplex.
ChemInform Abstract: THE PREPARATION AND CHARACTERIZATION OF CHROMIUM(III) COMPLEXES OF C‐MESO‐ AND C‐RACEMIC‐5,7,7,12,14,14‐HEXAMETHYL‐1,4,8,11‐TETRAAZACYCLOTETRADECANE (TET A AND TET B)
Authors: HOUSE D. A. , HAY R. W. , ALI M. A.
Published: May 2016

Die Reaktion von [CrC13(DMF)3], in situ hergestellt durch Dehydratation von CrC13°C 6 H2O in DMF, mit den Liganden gibt in guten Ausb. die Komplexe (I), die als Perchlorate charakterisiert werden.
ChemInform Abstract: METAL‐METAL MULTIPLE BONDS. 16. SYNTHESIS, STRUCTURE, AND REACTIVITY OF A DIMETALLACYCLOPROPENE, CP2MO2(CO)4(μ‐C13H8)(MO:MO)
Authors: D'ERRICO J. J. , CURTIS M. D.
Published: May 2016

Die Umsetzung der Komplexe (I) mit 9‐Diazafluoren (II), dessen Stereochemie eine Komplexierung der Phenylgruppen behindert, liefert die Dimetallacyclopropen‐Komplexe (III).
ChemInform Abstract: MOLYBDENUM(VI) COMPLEXES WITH MALIC ACID: THEIR INTERRELATIONSHIPS, AND THE CRYSTAL STRUCTURE OF DICESIUM BIS((S)‐MALATO(2‐))‐CIS‐DIOXOMOLYBDATE(VI)‐WATER 1/1
Authors: KNOBLER C. B. , WILSON A. J. , HIDER R. N. , JENSEN I. W. , PENFOLD B. R. , ROBINSON W. T. , WILKINS C. J.
Published: May 2016

In Abhängigkeit hauptsächlich vom molaren Verhältnis der Reaktanten werden bei der Umsetzung wäßriger Lösungen von Molybdat und Äpfelsäure die verschiedenen Komplexanionen (I)‐(III) erhalten.
ChemInform Abstract: STRUCTURES OF TETRACARBONYL(DI‐2‐PYRIDYLAMINE)CHROMIUM(0), ‐MOLYBDENUM(0) AND ‐TUNGSTEN(0). CRYSTALLOGRAPHIC AND SPECTROSCOPIC EVIDENCE FOR AN INTERMOLECULAR NH...OC HYDROGEN BOND
Authors: HOWIE R. A. , IZQUIERDO G. , MCQUILLAN G. P.
Published: May 2016

Die äquimolare Umsetzung von Di‐2‐pyridylamin mit den Metallcarbonylen in siedendem Toluol unter Stickstoff führt zu den Komplexen (I), für die Kristallstrukturanalysen durchgeführt werden.
ChemInform Abstract: URANYL COMPLEXES WITH BIDENTATE DERIVATIVES OF PYRIDINE N‐OXIDE. THE CRYSTAL STRUCTURE OF (DIMETHYL SULFOXIDE)BIS(1‐OXO‐2‐THIOPYRIDINATO)DIOXOURANIUM(VI) AND AQUABIS(1,2‐DIOXOPYRIDINATO)DIOXOURANIUM(VI) MONOHYDRATE
Authors: CASELLATO U. , VIGATO P. A. , TAMBURINI S. , GRAZIANI R. , VIDALI M.
Published: May 2016

UO2(NO3)2′6 H2O reagiert in Methanol mit methanolischen Lösungen der zweizähnigen monoanioni‐ sehen Liganden und LiOH zu Komplexen, wobei (Ia) als DMSO‐Komplex und (Ib) und (II) als Aquoderivate erlangt werden (keine Ausb.‐Angabe).
ChemInform Abstract: OXYGEN ACTIVATION BY METALLOPORPHYRINS. FORMATION AND DECOMPOSITION OF AN ACYLPEROXYMANGANESE(III) COMPLEX
Authors: GROVES J. T. , WATANABE Y. , MCMURRY T. J.
Published: May 2016

Der aus (Ia) mit K‐superoxid in MeCN dargestellte Superoxid‐Komplex (Ib) wird zu (II) acyliert, dessen Peroxostruktur chemisch und elektronenspektroskopisch identifiziert wurde.
ChemInform Abstract: THE KINETICS OF THE FIRST STAGE OF THE ACID HYDROLYSIS OF SOME TRANS‐MBR2(N4)+ (M = CO, CR) COMPLEXES
Authors: HOUSE D. A. , NOR O.
Published: May 2016

Spektrophotometrisch werden die kinetischen Parameter für die Geschwindigkeit der ersten Stufe der Aquotisierung von R,R,S,S‐(Ia), R,S‐(lb), R,S,S,R‐(Ic) und R,S,S,R‐(ld) bestimmt.
ChemInform Abstract: PHOTOCHEMISTRY OF (η3‐ALLYL)TRICARBONYLCOBALT IN FROZEN GAS MATRIXES AT 12 K. INFRARED SPECTROSCOPIC EVIDENCE FOR THE FORMATION OF (η3‐ALLYL)DICARBONYLCOBALT, (η3‐ALLYL)DICARBONYL(DINITROGEN)COBALT, (Σ‐ALLYL)TETRACARBONYLCOBALT, AND TETRACARBONYLCOBALT COMPLEXES
Authors: REST A. J. , TAYLOR D. J.
Published: May 2016

Matrixisolierungsuntersuchungen der primären photochemischen Reaktionen von (I) liefern in nicht reaktiver Matrix (CH4,Ar) das Produkt (II) und in reaktiver Matrix (III) (in N2) und (IV) (in CO), das in (V) übergeht.
ChemInform Abstract: SYNTHESIS AND CHARACTERIZATION OF SEVERAL BINUCLEAR AND MONONUCLEAR BIS(α‐DIOXIMATO)NICKEL(II) COMPLEXES
Authors: BOWERS M. L. , HILL C. L.
Published: May 2016

Ausgehend von den aus den Dioximen und NiC12′6 H2O erlangten Komplexen (II) werden durch Umsetzung mit BF3°C Et2O oder Boranen wie aufgezeigt die verschiedenen monomeren Komplexe (I), (III), (IV) und (V) synthetisiert.
ChemInform Abstract: STUDIES IN NICKEL(IV) CHEMISTRY. PART 1. PREPARATION, CHARACTERIZATION, AND KINETICS OF FORMATION OF TRIS(DIMETHYLGLYOXIMATO)NICKELATE(IV) IN AQUEOUS ALKALINE MEDIA
Authors: PANDA R. K. , ACHARYA S. , NEOGI G. , RAMASWAMY D.
Published: May 2016

In Gegenwart eines Überschusses eines Zweielektronoxidationsmittels (Chlorgas oder Hypohalogenite) wird aus wäßrigen alkalischen Lösungen bei der Umsetzung von Ni(II) mit Dimethylglyoximat die Ni(IV)‐Verbindung (I) dargestellt.
ChemInform Abstract: The Role of the Tosyl Group on the Coordination Ability of N‐Protected Amino Acids. Part 1. Solid‐State Behavior of (N‐Tosylglycinato)copper(II) Complexes: Crystal and Molecular Structures of (N‐Tosylglycinato)triaquacopper(II) and Di‐potassium Bis(N‐tosylglycinato)cuprate(II) Complexes.
Authors: ANTOLINI L. , BATTAGLIA L. P. , BATTISTUZZI GAVIOLI G. B. , BONAMARTINI CORRADI A. , GRANDI G. , MARCOTRIGIANO G. , MENABUE L. , PELLACANI G. C.
Published: May 2016

Bei der Reaktion von N‐Tosylglycin und Cu(Il)‐Ionen in wäßriger Lösung bei verschiedenen pH‐Werten entstehen die Verbindungen (I), (II) und zwei unterschiedlich gefärbte (blau und violett) Formen des Salzes (III).
ChemInform Abstract: THE REACTIVITY OF CYANOGEN TOWARDS COMPOUNDS CONTAINING ACTIVE HYDROGENS AT CARBON ATOMS. PART 3. SYNTHESIS OF BIS(1‐CYANO‐2‐(1‐IMINOETHYL)BUTANE‐1,3‐DIONATO)COPPER(II) FROM CYANOGEN AND BIS(ACETYLACETONATO)COPPER(II): KINETICS, THERMODYNAMICS, AND X‐RAY CRYSTAL STRUCTURE
Authors: CORAIN B. , BASATO M. , VISENTIN G. , ZANOTTI G.
Published: May 2016

Der Cu‐Komplex (I) reagiert mit Cyanogen in Methylenchlorid unter normalen Bedingungen in hoher Ausb. (Angabe in mg) zu dem mittels Einkristallröntgenstrukturanalyse (RG PI mit Z=1) als Verbindung (II) erkannten Komplex.