bluuebunny/crossref_metadata_2025 huggingface dataset:
Macromolecular Crowding Agents‐Assisted Imprinted Polymers For Analysis Of Glycocholic Acid In Human Plasma And Urine
Authors: Li Quan‐Fu , Zhan Yan‐Mei , Zhong Yong‐Gang , Zhang Bo , Ge Chang‐Qing
Published: April 2016

Glycocholic acid (GCA) is a newly identified biomarker for hepatocellular carcinoma (HCC) patients. In this study, a method based on macromolecular crowding strategy has been applied for preparation of a molecularly imprinted polymer (MIP), which possesses high adsorption capacity for GCA. Polymethyl methacrylate was used as a macromolecular crowding agent, N‐(3‐aminopropyl)‐methacrylamide hydrochloride as a functional monomer and ethylene dimethacrylate as a cross‐linker. The morphology and binding characteristics of MIP were assessed by scanning electron microscopy and absorption experiments. The MIP was used as an adsorbent material to separate GCA, and the molecularly imprinted solid‐phase extraction (MISPE) was carefully optimized. The MISPE combined with high‐performance liquid chromatographic analysis was successfully used to determine the GCA in plasma and urine samples. When spiked levels ranged from 0.2 to 20 μmol L−1, the recoveries were between 94.3 and 100.5%. As a proof of principle, this proposed method has been validated on a small subset of HCC patients (n = 10) and healthy volunteers (n = 10). The average GCA concentrations of HCC patients in plasma and urine were about 25 and 2.8 times than that of healthy volunteers. Copyright © 2016 John Wiley & Sons, Ltd.
Spondias tuberosa (Anacardiaceae) leaves: profiling phenolic compounds by HPLC‐DAD and LC–MS/MS and in vivo anti‐inflammatory activity
Authors: da Silva Siqueira Emerson Michell , Félix‐Silva Juliana , de Araújo Lorena Maria Lima , Fernandes Julia Morais , Cabral Bárbara , Gomes Jacyra Antunes dos Santos , de Araújo Roque Alan , Tomaz José Carlos , Lopes Norberto Peporine , de Freitas Fernandes‐Pedrosa Matheus , Giordani Raquel Brandt , Zucolotto Silvana Maria
Published: April 2016

Spondias tuberosa is a medicinal plant used by several local communities in northeast Brazil to treat infections, digestive disorders and inflammatory conditions. The study aimed to identify and quantify the major phenolic in hydroethanolic extract of leaves from S. tuberosa and to evaluate its anti‐inflammatory potential. The chemical profile of extract was analyzed by HPLC‐DAD and HPLC–MS. The in vivo anti‐inflammatory activity was investigated in carrageenan‐induced hind paw edema and peritonitis models in mice. Identified and quantified through HPLC‐DAD or HPLC‐MS analyses of S. tuberosa extract were the following compounds: chlorogenic acid, caffeic acid, rutin and isoquercitrin. The inflammatory response to carrageenan was significantly reduced in both models by S. tuberosa extract. In hind paw edema, the edematogenic response was reduced by up to 63.6% and the myeloperoxidase activity was completely inhibited. In the peritonitis model, the total cell migration into the peritoneal cavity was reduced by up to 65%. The results obtained give evidence of the anti‐inflammatory action of S. tuberosa and suggest the potential therapeutic benefit of this plant on inflammatory conditions. The chlorogenic acid, caffeic acid, rutin and isoquercitrin identified and quantified in S. tuberosa leaves enable us to suggest that these compounds could be used as chemical markers for quality control of derivative products from this species. Copyright © 2016 John Wiley & Sons, Ltd.
Assessing Insanity Acquittee Recidivism in Connecticut
Authors: Norko Michael A. , Wasser Tobias , Magro Heidi , Leavitt‐Smith Erin , Morton Frederic J. , Hollis Tamika
Published: April 2016

For over 30 years now the movement and status of insanity acquittees in Connecticut has been supervised by the Psychiatric Security Review Board (PSRB). During this time, 365 acquittees have been committed to the jurisdiction of the PSRB, 177 individuals have achieved conditional release (CR) and 215 acquittees have been discharged from PSRB jurisdiction. This article examines revocation of CR by the PSRB, arrests of acquittees on CR, and provides the first report of arrests following discharge from the PSRB's jurisdiction. The literature on relevant aspects of recidivism is reviewed and compared with findings in Connecticut. There is little available literature about recidivism of insanity acquittees following release from supervision. In the present sample of individuals discharged from the PSRB, 16% were rearrested, a rate that compares favorably with other discharged populations of offenders. For discharged acquittees, community supervision on CR prior to discharge from the PSRB had a statistically significant effect on decreasing the risk of subsequent rearrest, as did both the length of stay in the hospital and the duration of commitment to the PSRB. This article presents descriptive information about revocations, arrests on CR, and arrests following discharge. These data are consistent with criminal justice studies demonstrating the value of community supervision in lowering recidivism. Copyright © 2016 John Wiley & Sons, Ltd.
Mental Illness Among Women Referred for Psychiatric Services in a New Zealand Women's Prison
Authors: Collier Stephanie , Friedman Susan Hatters
Published: April 2016

This naturalistic exploratory study describes the characteristics of women prisoners referred to the forensic psychiatry service of the largest women's prison in New Zealand. Forensic psychiatrists diagnosed more than one‐third of the referred female inmates with psychotic disorders, and they diagnosed post‐traumatic stress disorder in one‐fifth. The majority of the women reported substance use prior to incarceration, as well as a history of personal victimization by family violence. Of the women prisoners referred to community mental health services at release, two‐thirds attended the arranged outpatient mental health follow‐up appointment. This study highlights the need for secondary prevention and rehabilitation for female inmates, and it provides suggestions for intervention. Copyright © 2016 John Wiley & Sons, Ltd.
GABABR/GSK‐3β/NF‐κB signaling pathway regulates the proliferation of colorectal cancer cells
Authors: Shu Qing , Liu Jun , Liu Xiupeng , Zhao Sufang , Li Hualin , Tan Yonggang , Xu Jianming
Published: April 2016

Colorectal cancer is one of the leading causes of highly fatal cancer‐related deaths in the whole world. Fast growth is critical characteristic of colorectal cancer, the underlying regulatory mechanism of colorectal cell fast proliferation remains largely unknown. Here, we reported that activation of metabotropic γ‐Aminobutyric acid receptor (GABABR) signaling significantly inhibited the colorectal cell HT29 proliferation by arresting the cell at G1 phase. Inhibition of GABABR activated GSK‐3β by reducing the phosphorylation level of GSK‐3β. Activation of GSK‐3β blocked the function of GABABR signaling on repressing cell proliferation. We further found that GABABR activation inhibited NF‐κB activity. The promotion of cell proliferation caused by downregulation of GABRBR could be blocked by inhibition of NF‐κB activation. Overall, activation of GABABR leaded to inhibition of GSK‐3β activation to repress the NF‐κB function during colorectal cancer cell proliferation. This study revealed critical function of GABABR/GSK‐3β/NF‐κB signaling pathway on regulating proliferation of colorectal cancer cell, which might provide a potential therapeutic target for clinical colorectal cancer treatment.
Measurement of some Benzylisoquinoline Alkaloids in Different Organs of Persian Poppy during Ontogenetical Stages
Authors: Rezaei Mahdi , Naghavi Mohammad Reza , Hosseinzadeh Abdol Hadi , Abbasi Alireza
Published: April 2016

Papaver bracteatum, a perennial species, has been known as a rich source of thebaine and a potential alternative to Papaver somniferum for the production of codeine and some semisynthetic antagonist drugs. In this study, ion mobility spectrum (IMS) of the root, leaf, bottom part of stem, upper part of stem, capsule wall, petal, and capsule content during developmental stages of P. bracteatum including annual rosette, perennial rosette, bud initiation, pendulous bud, preflowering, and lancing were investigated. The IMS revealed thebaine, papaverine, and noscapine as the major components of the extracted alkaloids. Based on the results of the study it appears that, at least in part, there is a competition among the biosynthesis pathways of papaverine, noscapine, and morphinan alkaloids from a common source. Root and capsule wall were the most potent organs for extraction of thebaine, while lancing stage was the best developmental stage for thebaine exploitation. However, it seems that total biomass of root and capsule wall plays a key role in the final selection of favorite organ. Although papaverine and noscapine in the stem at preflowering stage had the most quantity, significant amounts were found in the capsule wall. In general, total alkaloid content of leaf was lower than the other plant parts.
Lignin Degradation in the Production of Bioethanol – A Review
Authors: Mukherjee Anuradha , Mandal Tamal , Ganguly Amit , Chatterjee Pradip K.
Published: April 2016

Lignin is the principal impediment in the production of biofuel from different lignocellulosic sources through hydrolysis, saccharification and fermentation route. The two main types of treatment for lignin separation from the other main constituent plant materials, hemicellulose and cellulose, are biodegradation and the chemical degradation including base‐catalyzed, acid‐catalyzed, ionic liquids‐assisted lignin depolymerization. Severe reaction conditions, such as high pressure, high temperature and extreme pH, are being in practice for chemical degradation and result in the requirement of specially designed reactors. This leads to high costs of facility and handling along with the inadvertent generation of toxins. Biological degradation seems to be widespread and cost effective if enzymes degrading lignin could be produced by isolation of fungi. Bacterial strains could also be prepared that produce the lignin‐splitting enzyme laccase. The present article reviews the available processes for lignin degradation during lignocellulosic conversion of ethanol and discusses the research gaps in these fields.
Asenapine augmentation in bipolar disorders: a case series
Authors: Marazziti Donatella , Mucci Federico , Baroni Stefano , Piccinni Armando
Published: April 2016

Key Clinical Message

Asenapine, a novel second‐generation antipsychotic is effective in acute treatment of bipolar I disorder patients in combination with mood stabilizers even in resistant cases. Although there is no evidence for asenapine's efficacy to be superior to currently available agents, asenapine's favorable weight and metabolic profile are of clinical interest.
Teratodermoid mimicking cholecystitis
Authors: Iftikhar Hina , Idu Shareen , Omer Abdel
Published: April 2016

Key Clinical Message

An acute abdomen assessment in pregnancy is complicated. Pain can have obstetric and nonobstetric causes. Cholecystitis is a common cause of pain in pregnancy with significant morbidity if not managed promptly. We report a case of a ruptured, torted, right ovarian teratodermoid erroneously diagnosed as cholecystitis in pregnancy.
Organic–Inorganic Hybrid Metal Phosphonates as Recyclable Heterogeneous Catalysts
Authors: Bhanja Piyali , Bhaumik Asim
Published: April 2016

Successful incorporation of a suitable organic moiety in a porous inorganic metal phosphate network can not only make the corresponding organic–inorganic framework more flexible and robust, but it introduces more hydrophobicity at the surface of the resulting nanostructured material, which is highly desirable for their catalytic application in liquid‐phase chemical transformations. Following the success of organic–inorganic hybrid mesoporous silicas, a wide range of analogous hybrid metal phosphonates have been designed. This has opened up a wide diversity of open framework porous nanomaterials, which show excellent catalytic activities in many organic transformations that are not possible with their corresponding inorganic counterparts. Here, we have summarized the recent developments in designing organic–inorganic hybrid porous metal phosphonates in this brief review with a special emphasis on their catalytic potential in liquid‐phase organic transformations.
Influence of Metal Precursors and Reduction Protocols on the Chloride‐Free Preparation of Catalysts for the Direct Synthesis of Hydrogen Peroxide without Selectivity Enhancers
Authors: Sterchele Stefano , Biasi Pierdomenico , Centomo Paolo , Shchukarev Andrey , Kordás Krisztián , Rautio Anne‐Riikka , Mikkola Jyri‐Pekka , Salmi Tapio , Canton Patrizia , Zecca Marco
Published: April 2016

Different metal precursors and reducing agents were applied in the preparation of 1 wt % Pd catalysts supported on commercial ion‐exchange resin (Lewatit K2621) and used in the direct synthesis of H2O2. The catalysts were characterized by using TEM and their performance was evaluated in the direct synthesis of H2O2 (in a batch and semi‐batch reactor) to investigate the relationship between the catalyst preparation methods, morphology, and catalytic performance. As expected, both the choice of the Pd precursor and the reduction conditions had a strong influence on the size and size distribution of the resulting supported nanostructured metal nanoparticles and, consequently, on the catalytic performance. The best combination of metal precursor and reduction agent was [Pd(NH3)4]SO4 reduced with hydrogen. This catalyst had the largest average size of the Pd nanoparticles and the broadest size distribution.
Oxime‐Derived Palladacycles: Applications in Catalysis
Authors: Nájera Carmen
Published: April 2016

Phenone oxime‐derived palladacycles are stable, easy to prepare, and an excellent source of three‐ and four‐atom Pd clusters able to show excellent catalytic activity in most of the classical carbon–carbon bond forming reactions (Mizoroki–Heck, Matsuda–Heck, Suzuki–Miyaura, Stille, Kumada, Hiyama, Ullmann, Sonogashira, and Glasser), generally with better performance than Pd(OAc)2 or other Pd salts. Aryl iodides, bromides, chlorides, and imidazolyl sulfonates can be used as substrates not only in organic solvents but also in aqueous solvents including neat water. Appropriate choice of the general reaction conditions allow these C−C bond forming reactions to be performed efficiently. These palladacycles have been also used in carbonylations, several types of annulations, ketone arylations, C−H activation, oxime rearrangements, and behave as metalloenzymes in hydrolytic processes, among others. Not only dimer complexes can be used, but also monomer ones with an additional ligand as well as those supported on polymers, silica, and bearing ionic or fluorinated tags.
Evaluation of Chemical Diversity of Biotinylated Chiral 1,3‐Diamines as a Catalytic Moiety in Artificial Imine Reductase
Authors: Pellizzoni Michela , Facchetti Giorgio , Gandolfi Raffaella , Fusè Marco , Contini Alessandro , Rimoldi Isabella
Published: April 2016

The possibility of obtaining an efficient artificial imine reductase was investigated by introducing a chiral cofactor into artificial metalloenzymes based on biotin–streptavidin technology. In particular, a chiral biotinylated 1,3‐diamine ligand in coordination with iridium(III) complex was developed. Optimized chemogenetic studies afforded positive results in the stereoselective reduction of a cyclic imine, the salsolidine precursor, as a standard substrate with access to both enantiomers. Various factors such as pH, temperature, number of binding sites, and steric hindrance of the catalytic moiety have been proved to affect both efficiency and enantioselectivity, underlining the great flexibility of this system in comparison with the achiral system. Computational studies were also performed to explain how the metal configuration, in the proposed system, might affect the observed stereochemical outcome.
A real‐time model based on optimized least squares support vector machine for industrial polypropylene melt index prediction
Authors: Zhang Miao , Liu Xinggao
Published: April 2016

The accurate and reliable real‐time prediction of melt index (MI) is indispensable in quality control of the industrial propylene polymerization (PP) processes. This paper presents a real‐time soft sensor based on optimized least squares support vector machine (LSSVM) for MI prediction. First, the hybrid continuous ant colony differential evolution algorithm (HACDE) is proposed to optimize the parameters of LSSVM. Then, considering the complexity and nondeterminacy of PP plant, an online correcting strategy (OCS) is adopted to update the modeling data and to revise the model's parameters adaptively. Thus, the real‐time prediction model, HACDE‐OCS‐LSSVM, is obtained. Based on the data from a real PP plant, the models of HACDE‐LSSVM, DE‐LSSVM and LSSVM are also developed for comparison. The research results show that the proposed real‐time model achieves a good performance in the practical industrial MI prediction process. Copyright © 2016 John Wiley & Sons, Ltd.
Biomineralization‐Inspired Preparation of Zinc Hydroxide Carbonate/Polymer Hybrids and Their Conversion into Zinc Oxide Thin‐Film Photocatalysts
Authors: Matsumura Shunichi , Horiguchi Yoshimasa , Nishimura Tatsuya , Sakai Hideki , Kato Takashi
Published: April 2016

The development of ZnO thin films has been achieved through the conversion of zinc hydroxide carbonate thin‐film crystals. Crystallization of this compound is induced by a biomineralization‐inspired method with polymer‐stabilized amorphous precursors. The crystals grow radially on polymer matrices, leading to the formation of zinc hydroxide carbonate/polymer thin‐film hybrids that fully cover the substrate. These hybrids are converted into ZnO and retain their thin‐film morphologies. The resultant ZnO thin films exhibit a preferential crystallographic orientation that is attributed to the alignment of zinc hydroxide carbonate crystals before conversion. In addition, a photocatalytic function of the ZnO thin films has been demonstrated by analyzing the oxidation reaction of 2‐propanol. The biomineralization‐inspired approach reported herein is a promising way to develop ZnO materials with controlled morphologies and structures for photocatalytic applications.
Ferrocene‐Substituted Naphthalenediimide with Broad Absorption and Electron‐Transport Properties in the Segregated‐Stack Structure
Authors: Takai Atsuro , Sakamaki Daisuke , Seki Shu , Matsushita Yoshitaka , Takeuchi Masayuki
Published: April 2016

A new naphthalenediimide (NDI) molecule, where two ferrocene (Fc) units were directly attached to both imide nitrogens (Fc‐NDI‐Fc), was synthesized. The Fc units provide high crystallinity to Fc‐NDI‐Fc with good solubility to conventional organic solvents. The Fc units also work as electron‐donating substituents, in contrast to the electron‐deficient NDI unit, resulting in broad charge‐transfer absorption of Fc‐NDI‐Fc from the UV region to 1500 nm in the solid state. The crystal structure analysis revealed that Fc‐NDI‐Fc formed a segregated‐stack structure. The DFT calculation based on the crystal structure showed that the NDI π‐orbitals extended over two axes. The extended π‐network of the NDI units led to the electron‐transport properties of Fc‐NDI‐Fc, which was confirmed using a flash‐photolysis time‐resolved microwave conductivity technique.
Carbon‐Nanotube‐Mediated Electrochemical Transition in a Redox‐Active Supramolecular Hydrogel Derived from Viologen and an l‐Alanine‐Based Amphiphile
Authors: Datta Sougata , Bhattacharya Santanu
Published: April 2016

A two‐component hydrogelator (16‐A)2‐V2+, comprising an l‐alanine‐based amphiphile (16‐A) and a redox‐active viologen based partner (V2+), is reported. The formation the hydrogel depended, not only on the acid‐to‐amine stoichiometric ratio, but on the choice of the l‐amino acid group and also on the hydrocarbon chain length of the amphiphilic component. The redox responsive property and the electrochemical behavior of this two‐component system were further examined by step‐wise chemical and electrochemical reduction of the viologen nucleus (V2+/V+ and V+/V0). The half‐wave reduction potentials (E1/2) associated with the viologen ring shifted to more negative values with increasing amine component. This indicates that higher extent of salt formation hinders reduction of the viologen moiety. Interestingly, the incorporation of single‐walled carbon nanotubes in the electrochemically irreversible hydrogel (16‐A)2‐V2+ transformed it into a quasi‐reversible electrochemical system.
Energetic Salts Based on Tetrazole N‐Oxide
Authors: He Piao , Zhang Jian‐Guo , Yin Xin , Wu Jin‐Ting , Wu Le , Zhou Zun‐Ning , Zhang Tong‐Lai
Published: April 2016

Energetic materials (explosives, propellants, and pyrotechnics) are used extensively for both civilian and military applications and the development of such materials, particularly in the case of energetic salts, is subject to continuous research efforts all over the world. This Review concerns recent advances in the syntheses, properties, and potential applications of ionic salts based on tetrazole N‐oxide. Most of these salts exhibit excellent characteristics and can be classified as a new family of highly energetic materials with increased density and performance, alongside decreased mechanical sensitivity. Additionally, novel tetrazole N‐oxide salts are proposed based on a diverse array of functional groups and ions pairs, which may be promising candidates for new energetic materials.
Unusual NHC–Iridium(I) Complexes and Their Use in the Intramolecular Hydroamination of Unactivated Aminoalkenes
Authors: Sipos Gellért , Ou Arnold , Skelton Brian W. , Falivene Laura , Cavallo Luigi , Dorta Reto
Published: April 2016

N‐heterocyclic carbene (NHC) ligands with naphthyl side chains were employed for the synthesis of unsaturated, yet isolable [(NHC)Ir(cod)]+ (cod=1,5‐cyclooctadiene) complexes. These compounds are stabilised by an interaction of the aromatic wingtip that leads to a sideways tilt of the NHC−Ir bond. Detailed studies show how the tilting of such N‐heterocyclic carbenes affects the electronic shielding properties of the carbene carbon atom and how this is reflected by significant upfield shifts in the 13C NMR signals. When employed in the intramolecular hydroamination, these [(NHC)Ir(cod)]+ species show very high catalytic activity under mild reaction conditions. An enantiopure version of the catalyst system produces pyrrolidines with excellent enantioselectivities.
Host–Guest Chemistry: Oxoanion Recognition Based on Combined Charge‐Assisted C−H or Halogen‐Bonding Interactions and Anion⋅⋅⋅Anion Interactions Mediated by Hydrogen Bonds
Authors: González Lidia , Zapata Fabiola , Caballero Antonio , Molina Pedro , Ramírez de Arellano Carmen , Alkorta Ibon , Elguero José
Published: April 2016

Several bis‐triazolium‐based receptors have been synthesized and their anion‐recognition capabilities have been studied. The central chiral 1,1′‐bi‐2‐naphthol (BINOL) core features either two aryl or ferrocenyl end‐capped side arms with central halogen‐ or hydrogen‐bonding triazolium receptors. NMR spectroscopic data indicate the simultaneous occurrence of several charge‐assisted aliphatic and heteroaromatic C−H noncovalent interactions and combinations of C−H hydrogen and halogen bonding. The receptors are able to selectively interact with HP2O73−, H2PO4−, and SO42− anions, and the value of the association constant follows the sequence: HP2O73−>SO42−>H2PO4−. The ferrocenyl end‐capped 72+⋅2 BF4− receptor allows recognition and differentiation of H2PO4− and HP2O73− anions by using different channels: H2PO4− is selectively detected through absorption and emission methods and HP2O73− by using electrochemical techniques. Significant structural results are the observation of an anion⋅⋅⋅anion interaction in the solid state (2:2 complex, 62+⋅[H2P2O7]2−), and a short C−I⋅⋅⋅O contact is observed in the structure of the complex [82+][SO4]0.5[BF4].
Synthesis, Structure, and Molecular Recognition of S6‐ and (SO2)6‐Corona[6](het)arenes: Control of Macrocyclic Conformation and Properties by the Oxidation State of the Bridging Heteroatoms
Authors: Guo Qing‐Hui , Zhao Liang , Wang Mei‐Xiang
Published: April 2016

We report herein the synthesis, structure, and molecular recognition of S6‐ and (SO2)6‐corona[6](het)arenes, and demonstrate a unique and efficient strategy of regulating macrocyclic conformation and properties by adjusting the oxidation state of the heteroatom linkages. The one‐pot nucleophilic aromatic substitution reaction of 1,4‐benzenedithiol derivatives, biphenyl‐4,4′‐dithiol and 9,9‐dipropyl‐9H‐fluorene‐2,7‐dithiol with 3,6‐dichlorotetrazine afforded S6‐corona[3]arene[3]tetrazines. These compounds underwent inverse‐electron‐demand Diels–Alder reaction with enamines and norbornadiene to produce S6‐corona[3]arene[3]pyridazines. Facile oxidation of sulfide linkages yielded (SO2)6‐corona[3]arene[3]pyridazines. All corona[6](het)arenes adopted generally hexagonal macrocyclic ring structures; however, their electronic properties and conformation could be fine‐tuned by altering the oxidation state of the sulfur linkages. Whereas (SO2)6‐corona[3]arene[3]pyridazines were electron‐deficient, S6‐corona[3]arene[3]pyridazines acted as electron‐rich macrocyclic hosts that recognized various organic cations in both aqueous and organic solutions.
Fluorescent Cross‐Linked Supramolecular Polymer Constructed by Orthogonal Self‐Assembly of Metal–Ligand Coordination and Host–Guest Interaction
Authors: Qian Xiaomin , Gong Weitao , Li Xiaopeng , Fang Le , Kuang Xiaojun , Ning Guiling
Published: April 2016

A new host molecule consists of four terpyridine groups as the binding sites with zinc(II) ion and a copillar[5]arene incorporated in the center as a spacer to interact with guest molecule was designed and synthesized. Due to the 120 ° angle of the rigid aromatic segment, a cross‐linked dimeric hexagonal supramolecular polymer was therefore generated as the result of the orthogonal self‐assembly of metal–ligand coordination and host–guest interaction. UV/Vis spectroscopy, 1H NMR spectroscopy, viscosity and dynamic light‐scattering techniques were employed to characterize and understand the cross‐linking process with the introduction of zinc(II) ion and guest molecule. More importantly, well‐defined morphology of the self‐assembled supramolecular structure can be tuned by altering the adding sequence of the two components, that is, the zinc(II) ion and the guest molecule. In addition, introduction of a competitive ligand suggested the dynamic nature of the supramolecular structure.
Modular Synthesis of Novel Macrocycles Bearing α,β‐Unsaturated Chemotypes through a Series of One‐Pot, Sequential Protocols
Authors: Javed Salim , Bodugam Mahipal , Torres Jessica , Ganguly Arghya , Hanson Paul R.
Published: April 2016

A series of one‐pot, sequential protocols was developed for the synthesis of novel macrocycles bearing α,β‐unsaturated chemotypes. The method highlights a phosphate tether‐mediated approach to establish asymmetry, and consecutive one‐pot, sequential processes to access the macrocycles with minimal purification procedures. This library amenable strategy provided diverse macrocycles containing α,β‐unsaturated carbon‐, sulfur‐, or phosphorus‐based warheads.
Ultrathin Coating of Confined Pt Nanocatalysts by Atomic Layer Deposition for Enhanced Catalytic Performance in Hydrogenation Reactions
Authors: Wang Meihua , Gao Zhe , Zhang Bin , Yang Huimin , Qiao Yan , Chen Shuai , Ge Huibin , Zhang Jiankang , Qin Yong
Published: April 2016

Metal‐support interfaces play a prominent role in heterogeneous catalysis. However, tailoring the metal‐support interfaces to realize full utilization remains a major challenge. In this work, we propose a graceful strategy to maximize the metal‐oxide interfaces by coating confined nanoparticles with an ultrathin oxide layer. This is achieved by sequential deposition of ultrathin Al2O3 coats, Pt, and a thick Al2O3 layer on carbon nanocoils templates by atomic layer deposition (ALD), followed by removal of the templates. Compared with the Pt catalysts confined in Al2O3 nanotubes without the ultrathin coats, the ultrathin coated samples have larger Pt–Al2O3 interfaces. The maximized interfaces significantly improve the activity and the protecting Al2O3 nanotubes retain the stability for hydrogenation reactions of 4‐nitrophenol. We believe that applying ALD ultrathin coats on confined catalysts is a promising way to achieve enhanced performance for other catalysts.
ChemInform Abstract: MIXED LIGAND CHELATES OF COPPER(II), ZINC(II), NICKEL(II) AND COBALT(II) WITH NITRILOTRIACETIC ACID AS THE PRIMARY LIGAND AND 3,5‐DINITRO‐ AND 3,5‐DIBROMOSALICYCLIC ACIDS AS SECONDARY LIGANDS
Authors: AGRAWAL B. K. , CHANDRA M. , AGARWALA B. V. , DEY A. K.
Published: April 2016

Die Stabilitätskonstanten der in den Systemen Metall(II)‐3,5‐Dinitrosalicylsäure und Metall(II)‐3,5‐Dinitrosalicylsäure‐Nitrilotriessigsäure (Metall(II): Zn(II), Cu(II), Ni(II) und Co(II)) und in analogen Cu‐ und Zn‐Systemen mit 3,5‐ Dibromsalicylsäure gebildeten 1:1‐ und l :l :l‐Komplexe werden pH‐metrisch bei 25°C in wäßrigem Ethanol ermittelt und diskutiert.
ChemInform Abstract: STUDY OF THE ADDITION OF SATURATED AND BENZYLIC ORGANOMAGNESIUM COMPOUNDS TO SIMPLE AND FUNCTIONALIZED CONJUGATED ENYNES
Authors: AUGER J. , COURTOIS G. , MIGINIAC L.
Published: April 2016

Das Verhältnis von l,2‐ und 1,4‐Addition der Grignard‐Verbindungen (II) an die Enine (I) wird untersucht.
ChemInform Abstract: REACTION OF 2‐TERT‐BUTYL‐1,3‐BUTADIENE WITH Π‐ALLYLIC PALLADIUM COMPLEXES. A NOVEL CYCLIZATION OF ALLYLIC LIGANDS
Authors: KIJI J. , MIURA Y. , FURUKAWA J.
Published: April 2016

Die Reaktion zwischen den π‐Allyl‐Komplexen (I) und 2‐tert.‐Butyl‐1,3‐butadien (II) bleibt in Abhängigkeit von den Alkylsubstituenten auf verschiedenen Stufen stehen.
ChemInform Abstract: CARBONYLATION OF OLEFINS AND ALCOHOLS BY CARBON MONOXIDE IN THE PRESENCE OF A BORON TRIFLUORIDE HYDRATE‐LIQUID SULFUR DIOXIDE CATALYTIC SYSTEM
Authors: PUZITSKII K. K. , PIROZHKOV S. D. , MYSHENKOVA T. N. , RYABOVA K. G.
Published: April 2016

Olefine wie Isobutylen, 2‐Methyl‐1‐ bzw. ‐2‐penten, 2,4,4‐Trimethyl‐1‐penten oder Triisobutylen werden bei ‐30°C in dem System BF3‐H2O‐flüssiges SO2 bei Normaldruck mit CO mit 40‐95%igen Ausbeuten zu Gemischen entsprechender Säuren carbonyliert.
ChemInform Abstract: SYNTHESIS AND REACTIONS OF A STERICALLY HINDERED OLEFIN, TRANS‐2,2,3,4,5,5‐HEXAMETHYL‐3‐HEXENE
Authors: LENOIR D.
Published: April 2016

Die Reduktion des Ketons (I) mit Zn‐Staub in Gegenwart von Ti(II) (das aus TiCl3 oder TiCl4 gebildet wird) führt zu dem trans‐Olefin (II) (das cis‐Isomere ist nach Kraftfeld‐Berechnungen die energieärrnere Verbindung), das sich beim Behandeln mit ethanolischem HCl zu (III) isomerisiert und von N‐Brom‐succinimid zu dem instabilen Brom‐Derivat (IV) bromiert wird.
ChemInform Abstract: THE CHEMISTRY OF ENOLATES DERIVED FROM 3,6‐DIHYDROBENZOIC ACID ESTERS‐ A SYNTHESIS OF FUNCTIONALIZED 1,3‐CYCLOHEXADIENES
Authors: BOECKMAN R. K. JUN. , RAMAIAH M. , MEDWID J. B.
Published: April 2016

Während Reaktionen über das Dianion aus (Ia) lediglich zu Aromatisierungsreaktionen oder zur Rückbildung von (Ia) führen, erhält man aus dem Ester (Ib) mit Alkylierungsmitteln (II) nach Umwandlung in ein Dianion mit Lithiumdiisopropylamid (LDA) die Substitutionsprodukte (III).
ChemInform Abstract: A SIMPLE AND PRACTICAL SYNTHESIS OF OLIVETOL
Authors: FOCELLA A. , TEITEL S. , BROSSI A.
Published: April 2016

Bei der Kondensation zwischen dem Heptenyl‐methyl‐keton (I) und Malonester (II) entsteht das Cyclohexenon (III), das bei der Behandlung mit Brom zum Olivetol (IV) reagiert.
ChemInform Abstract: SYNTHESIS AND PROTON NMR SPECTRA OF 2‐(PYRIDYL‐2‐METHYL)BENZOTHIAZOLE, 2,6‐BIS(BENZOTHIAZOLYL‐2‐METHYL)PYRIDINE, AND THEIR SALTS
Authors: KORNILOV M. YU. , RUBAN E. M.
Published: April 2016

Aus dem Pyridin (I) und 0‐Aminothiophenol (II) erhält man die Verbindung (III), die mit Dimethylsulfat zu dem Benzothiazoliumperchlorat (IV) umgesetzt wird.
ChemInform Abstract: 1,9,10‐ANTHYRIDINES
Authors: CALUWE P. , MAJEWICZ T. G.
Published: April 2016

Bei der katalytischen Hydrierung von 2,6‐Diamino‐3,5‐dicyanopyridin (I) erhält man neben (III) den Dialdehyd (II) in guten Ausbeuten.
ChemInform Abstract: PYRIDINE‐BASE COMPLEXES OF THE TETRACHLOROPHOSPHONIUM ION
Authors: DILLON K. B. , REEVE R. N. , WADDINGTON T. C.
Published: April 2016

Die Komplexbildung zwischen Tetrachlorophosphonium‐Ionen, im allgemeinen als Hexachloroantimonatw) eingesetzt, und ein‐ sowie zweizähnigen Pyridinen werden in Lösung (Nitrobenzol, ‐methanol, ‐ethanol) NMR‐spektroskopisch untersucht.
ChemInform Abstract: DICARBONYLBIS(η‐CYCLOPENTADIENYL)TITANIUM(II) CHEMISTRY‐ REACTIONS WITH ORGANIC MOLECULES CONTAINING C‐CL, P‐CL, O‐H, AND S‐CL BONDS, SYNTHESIS, PROPERTIES, AND STRUCTURES OF η‐ACYL DERIVATIVES OF TITANIUM(IV)
Authors: FACHINETTI G. , FLORIANI C. , STOECKLI‐EVANS H.
Published: April 2016

Die Reaktion der Titelverbindung (I) mit den Acylchloriden (II) führt zu den Acyl‐Ti(IV)‐Derivaten (IVa).
ChemInform Abstract: STUDIES ON PHOSPHAZENES WITH COORDINATION NUMBER 2 AND 3. 14. FOUR‐MEMBERED PHOSPHORUS‐NITROGEN‐METAL HETEROCYCLES WITH ZWITTERIONIC STRUCTURE
Authors: NIECKE E. , KROEHER R. , POHL S.
Published: April 2016

Ausgehend von λ5‐P‐N‐Yliden wie (I) werden mit entsprechenden Sn‐, Al‐, Fe‐, Ti‐ und Nb‐chloriden Adduktbildungen zu den cyclischen Zwitterionen (II) mit dem Skelett P+N2E‐ beobachtet.
ChemInform Abstract: PREPARATION AND SPECTROSCOPIC STUDIES OF FOUR STEREOISOMERS OF TRIS((S)‐1,3‐BUTANEDIAMINE)COBALT(III) COMPLEX
Authors: KOJIMA M. , FUJITA J.
Published: April 2016

Das aus Na‐hexanitrocobaltat(III), (S)‐1,3‐Butandi‐ amin und HCl erhaltene Dichloro‐bis‐[diamin]‐Co‐chlorid (Ausb. 30%) reagiert in DMSO gelöst mit einer methanolischen Lösung des (S)‐Dia1nindihydrochlorids und Na‐methylat bei Raumtemp. zu dem gewünschten Titelkomplex, dessen (‐)‐mer‐A‐, (+)‐fac‐A‐, (+)‐mer‐ ‐ und (‐)‐fac‐ ‐Isomeren (Verhältnis 2: 1:2: 1) an einer SP‐Sephadex säule unter Verwendung von Na‐(+)‐tartratoantirnonat(III) getrennt und als Chloride oder Perchlorate (I) isoliert werden.
ChemInform Abstract: TRANSITION METAL CHEMISTRY OF OXIME CONTAINING LIGANDS‐ PART III. COMPLEXES OF IRON(II), COBALT(II), AND NICKEL(II) WITH PYRIDINE‐2‐ALDOXIME AND 6‐METHYLPYRIDINE‐2‐ALDOXIME
Authors: MOHAN M. , MITTAL S. G. , KHERA H. C. , SRIVASTAVA A. K.
Published: April 2016

Die trans‐Aldoxim‐Komplexe (I) werden durch Umsetzung entsprechender Metall(II)‐ Salze mit den Titelliganden in ethanolischer Lösung oder durch Metathese der Dichloro‐ bzw. Dinitro‐Komplexe mit Ammoniumthiocyanat synthetisiert.
ChemInform Abstract: SYNTHESIS OF QUASSINOIDS. 5. CONVERSION OF D‐RING SECO DERIVATIVES OF CHOLIC ACID TO Δ‐LACTONES
Authors: DIAS J. R. , RAMACHANDRA R.
Published: April 2016

Verschiedene Umwandlungsreaktionen von D‐seco‐Cholsäurederivaten wie (III) zu Lactonen wie (IV) werden beschrieben.
ChemInform Abstract: GROUP IVB CARBENE ANALOGS ‐ STRUCTURE AND REACTIVITY
Authors: NEFEDOV O. M. , KOLESNIKOV S. P. , IOFFE A. I.
Published: April 2016

Review: Structure and Reactivity.
ChemInform Abstract: CONTRIBUTION OF DISSOLVED CADMIUM TO THE VISCOSITY OF ITS SOLUTIONS IN MOLTEN CADMIUM CHLORIDE, BROMIDE AND IODIDE
Authors: STACHOWICZ L. , SUSKI L.
Published: April 2016

Die Viskositätskoeffizienten der Systeme Cd‐ CdXe2 (X: Cl, Br, I) werden mit einem modifizierten Kapillarviskosimeter nach Ostwald‐Ubbelohde als Funktion des Molenbruchs des gelösten Cd im Temp.‐Bereich zwischen 903 K und 1.2 T (T= Schmelzpunkt des speziellen als Lösungsmittel dienenden Salzes ) gemessen.
ChemInform Abstract: THE PHOTOADDITION OF ALIPHATIC AMINES TO BENZENE
Authors: BELLAS M. , BRYCE‐SMITH D. , CLARKE M. T. , GILBERT A. , KLUNKIN G. , KRESTONOSICH S. , MANNING C. , WILSON S.
Published: April 2016

1. Die Addition von prim. Aminen, z.B. (II), an Benzol (I) gibt Produkte der 1,4‐, 1,2‐ und 1,3‐Addition der NH‐Bindung ( ;z.B. (III), (IV), (V)); das 1,3‐Addukt (VI) entsteht dabei durch sek. Photoreaktion über Hexatrienstufen ( ;z.B. (V)).
ChemInform Abstract: FORMATION AND REACTIVITY OF GASEOUS ACETYLIUM IONS FROM THE METHYLATION OF CARBON MONOXIDE
Authors: GIACOMELLO P. , SPERANZA M.
Published: April 2016

Freie Acetylium‐Ionen wurden auf 2 Wegen dargestellt: 1.) Methylierung von CO durch CT; (aus CT4‐Zerfall) und 2.) nucleophile Substitution durch CO in CH3X (X: HF, CH3F ; aus γ‐Radiolyse von Methylfluorid).
ChemInform Abstract: 3‐CYANO‐3‐METHOXYCARBONYL‐2,4,4,5‐TETRAPHENYLPYRROLIDINE AS A PRECURSOR OF BENZYLIDENAMMONIUM BENZYLIDE
Authors: SINBANDHIT S. , HAMELIN J.
Published: April 2016

Aus dem Salz (I) und dem ungesättigten Nitril (II) erhält man bei ‐70°C in Tetrahydrofuran nach Hydrolyse ein Gemisch der Pyrrolidine (III)und (IV), von denen (III) bei der Pyrolyse in siedendem Toluol zu dem Ylid (V) gespalten wird.
ChemInform Abstract: REACTION OF SINGLET OXYGEN WITH 4‐METHYL‐2,3‐DIHYDRO‐Γ‐PYRANS
Authors: FRIMER A. A. , BARTLETT P. D. , BOSCHUNG A. F. , JEWETT J. G.
Published: April 2016

Durch thermische Cycloaddition des Vinylbutylethers (II) an Crotonaldehyd (Ia) entsteht das Addukt (III), das durch Hydrierung (Ausb. 80%) und Dehydratisierung in das Dihydropyran (IV) bzw. sein D‐ oder T‐Derivat übergeht.
ChemInform Abstract: NEW ALIPHATIC THIOACYLATING REAGENTS, TERT‐BUTYL ALIPHATIC DITHIOCARBOXYLATES BY WAY OF BIS(THIOACYL)SULFIDES
Authors: KATO S. , TAKAGI T. , KATADA T. , MIZUTA M.
Published: April 2016

Durch Umsetzen der Bis(thioacyl)‐sulfide (I) mit Na‐tert.‐butyl‐thiolat konnten die sterisch gehinderten Ester (II) dargestellt werden.
ChemInform Abstract: AROMATIC POLYFLUORO COMPOUNDS ‐ PART LVI. THE SYNTHESIS OF POLYFLUOROBENZHYDROLS AND ‐BENZOPHENONES
Authors: DITCHFIELD G. E. , PEDLER A. E.
Published: April 2016

Mit Ethylgrignardreagens erhält man aus dem Heptafluor‐4H‐ toluol (Ia) die Grignardverbindung (Ib), die mit Ameisensäureester (II) zum fluorierten Benzhydrol (III) führt.
ChemInform Abstract: 2,4‐DIARYL‐3‐DIMETHYLAMINOTHIETANE 1,1‐DIOXIDES. SYNTHESIS, CONFIGURATION AND STABILITY
Authors: ABBOTT F. S. , COATES J. E. , HAYA K.
Published: April 2016

Benzylsulfochloride (I) reagieren mit den Enaminen (II) zu den acyclischen (III) sowie den cyclischen Addukten (IV) und (V), von denen die trans‐Verbinsmd.
ChemInform Abstract: THE REACTIVITY OF α‐HALOGENATED IMINO COMPOUNDS. 10. REARRANGEMENT OF α‐CHLOROALDIMINES‐ SYNTHESIS OF 2‐IMIDAZOLIDINETHIONES
Authors: DE KIMPE N. , VERHE R. , DE BUYCK L. , SCHAMP N. , DECLERCQ J. P. , GERMAIN G. , VAN MEERSCHE M.
Published: April 2016

Aus den α‐Chlor‐aldiminen (I) erhält man mit Kaliumrhodanid in Methanol die Cyclisierungsprodukte (II), die mit Lithiumalanat zu"(III) reduziert und dann zu (IV) methyliert werden können.
ChemInform Abstract: REACTION OF DI‐ AND TRISUBSTITUTED CHLOROIMINIUM CHLORIDES WITH AZIDE ION. A NEW ′CURTIUS TYPE′ REARRANGEMENT
Authors: IMHOFF R. , LADNER D. W. , MUCHOWSKI J. M.
Published: April 2016

Aus den Amiden (I) entstehen die Chloriminium‐ Chloride (II), die mit Tetrabutylammoniumazid zu den Nitrilen (III) reagieren, wobei z.Tl. die Halogenide (IV) eliminiert werden.
ChemInform Abstract: THE REACTION OF DI‐ AND TRIBROMOTETRAHYDRO‐4H‐PYRAN‐4‐ONES WITH BASES
Authors: SATO K. , OHASHI M. , AOKI E. , MURAI Y.
Published: April 2016

Bei der Umsetzung mit Morpholin (II) erhält man je nach Konzentration und Reaktionsbedingungen aus den Dibrom‐tetrahydro‐4H‐pyran‐4‐onen (I) die Folgeprodukte (III) bis (VI) in recht unterschiedlichen Ausbeuten.
ChemInform Abstract: AS‐TRIAZINE DERIVATIVES WITH POTENTIAL THERAPEUTIC ACTION, XV. SYNTHESIS OF NEW ′BLOCKED 5‐SUBSTITUTED 4‐THIO‐6‐AZAURIDINES′
Authors: CRISTESCU C.
Published: April 2016

Beim Erhitzen der 5‐substituierten 6‐Azauracile (I) mit dem Silazan (II) und (CH3)3SiCl bilden sich die Silyl‐Derivate (III), die in situ mit l‐O‐Acetyl‐2,3,5‐tri‐O‐benzoyl‐D‐ ribofuranose (Rbf) in Gegenwart von SnCl4 zu den N‐1‐β‐D‐Glykosiden (IV) umgesetzt werden; diese werden alternativ aus den β‐D‐Ribofuranosyl‐triazinen (V) synthetisiert.
ChemInform Abstract: SULFONATION OF SILYLATED ALLENIC DERIVATIVES. SYNTHESIS OF UNSATURATED SULFONIC COMPOUNDS
Authors: BOURGEOIS P. , CALAS R. , MERAULT G.
Published: April 2016

Die Sulfonierung der Allenylsilane (III) durch (I) oder (II) kann sowohl unter Erhaltung der Allen‐Struktur zu (Vc) oder (VIII) als auch unter Umwandlung in ein Acetylen‐ (IV) oder konjugiertes Dien‐System (VI) bzw. (VII) erfolgen.
ChemInform Abstract: FLUORODIAZADIPHOSPHETIDINES, IV‐ THERMAL DECOMPOSITION OF (CH3N)4P3F7
Authors: CHARWATH M. , UTVARY K. , KANAMUELLER J. M.
Published: April 2016

Die Titelverbindung (I) zersetzt sich bei 130°C in einem geschlossenen System unter Bildung des Diazaphosphetidins (II) und des hochkondensierten Ringsystems (III).
ChemInform Abstract: STUDIES ON PHOSPHAZENES OF COORDINATION NUMBER 2 AND 3. 14. AN IMINO‐BRIDGED TRIAZA‐Λ5‐PHOSPHETIDINE
Authors: NIECKE E. , SCHAEFER H.‐G.
Published: April 2016

Die Umsetzung des Iminoaminophosphins (I) mit tert.‐Butylazid (II) führt nicht zum vollständig alkylierten Aminodiiminophosphoran sondern zum thermisch stabilen, bicyclischen Addukt (III), dessen Zusammensetzung und Struktur durch Elementaranalyse, Molgewichtsbestimmung, massen‐, NMR‐ und IR‐ spektroskopische Daten charakterisiert werden.
ChemInform Abstract: PREPARATION AND CRYSTAL STRUCTURE OF (MN4S4(CO)15), OXIDATION AT SULFUR OF (((CO)4MN‐A‐SNME3)2)
Authors: KUELLMER V. , ROETTINGER E. , VAHRENKAMP H.
Published: April 2016

Der Mangan‐Komplex (I) reagiert mit Iod zum Komplex (II).
ChemInform Abstract: FLUOROCARBOHYDRATES. PART XXV. SYNTHESIS AND STRUCTURE OF 2‐DEOXY‐2‐FLUOROLACTOSE AND RELATED COMPOUNDS
Authors: KENT P. W. , DIMITRIJEVICH S. D.
Published: April 2016

Das in der Lactol‐Reihe aus (I) in bekannter Weise hergestellte ungesättigte Lactal (IIa) wird mit Trifluormethylhypofluorit umgesetzgund hierbei werden die Fluorverbindungen (IIIa), (IIIb) und (IVa), (IVb) erhalten, die zu (IIIc) und (IIId) bzw. (IVc) verseift werden.
ChemInform Abstract: TRANSITION‐METAL THIOCARBONYLS AND SELENOCARBONYLS
Authors: BUTLER I. S.
Published: April 2016

Review: (Metallthiocarbonyle (1.
ChemInform Abstract: DATA ON STRONTIUM DICALCIUM DIINDIUM OXIDE
Authors: MUSCHICK W. , MUELLER‐BUSCHBAUM HK.
Published: April 2016

Die Struktur der bisher unbekannten, aus den Oxiden SrO:CaO:In2O3 = 1:2:1 beim kurzzeitigen Erhitzen in einem Plasmabrenner auf über 2000°C in einkristalliner Form entstehenden Titelverbindung wird röntgenographisch aufgeklärt.
ChemInform Abstract: RAMAN SPECTRA OF THE SYSTEM TIN(II) BROMIDE‐CESIUM BROMIDE IN THE SOLID AND MOLTEN STATE
Authors: BUES W. , SOMER M. , BROCKNER W.
Published: April 2016

Sowohl polykristallines und geschmolzenes SnBr2 als auch SnBr2‐CsBr‐Schmelzen wurden ramanspektroskopisch untersucht.
ChemInform Abstract: INTERACTION BETWEEN THE CARBONYL GROUP AND A SULFUR ATOM. PART 8. CORRELATION N BETWEEN THE BASICITY CONSTANTS, CORRECTED FOR STERIC EFFECTS, AND TAFT Σ* VALUES FOR SOME KETONES AND NITRILES
Authors: COLE K. C. , SANDORFY C. , FABI M. T. , OLIVATO P. R. , RITTNER R. , TRUFEM C. , VIERTLER H. , WLADISLAW B.
Published: April 2016

Die Basizitätskonstanten (NMR‐spektroskopisch durch Assoziation mit p‐Chlor‐phenol bestimmt) der Ketone (I) bzw. Nitrile (II) ergeben,gegen entsprechende Ionisationspotentiale aufgetragen, eine Gerade.
ChemInform Abstract: A NOVEL METAL ION‐PORPHYRIN EQUILIBRIUM
Authors: ADEYEMO A. , KRISHNAMURTHY M.
Published: April 2016

Im Gegensatz zu anderen Metall‐porphyrinkomplexen, bei denen wegen ihrer hohen thermodynamischen Stabilität kein nonnales Bildungsgleichgewicht beobachtet werden konnte, bildet sich bei Titration des wasserlöslichen Tetrakis‐[p‐sulfonatophenyl]‐porphins mit Hg(II)‐nitrat ein dynamisches Gleichgewicht zwischen dem Porphin und den Metallionen und dem Diquecksilberkomplex aus, für das die Konstanten bei verschiedenen Hg‐Konzentrationen spektrophotometrisch bestimmt wurden.
ChemInform Abstract: CATHODIC BEHAVIOR OF VINYLIC SULFONES IN WEAKLY ACIDIC MEDIA
Authors: ANKNER K. , LAMM B. , SIMONET J.
Published: April 2016

Die Reduktion der Sulfone (I) an einer Hg‐Kathode in DMF und in Gegenwart von Phenol als Protonendonator führt zu den entsprechenden Olefinen (II) ‐ das entstehende Styrol polymerisiert sich zu Polystyrol (Ausbeute 43%) ‐ und dem Sulfinat (III).
ChemInform Abstract: A GENERAL SYNTHESIS OF BENZO‐1,4‐DITHIAFULVALENES BY CARBONYL OLEFINATION
Authors: AKIBA K. , ISHIKAWA K. , INAMOTO N.
Published: April 2016

2‐(0,0‐Dimethylphosphonyl)‐I ,3‐benzodithiol (I) ergibt mit Ketonen (II) in guten Ausbeuten Benzo‐1,4‐dithiafulvalene bzw. ‐fulvene (III).
ChemInform Abstract: PHOTOCHEMICAL CYCLIZATION OF 2,3‐DIARYLCHROMONES‐ FORMATION OF PHENANTHRO(9′10′‐2,3)CHROMONES
Authors: PRASUNAMBA K. L. , SRIMANNARAYANA G. , SUBBA RAO N. V.
Published: April 2016

Bei der Photolyse der Diarylchromone (Ia)‐(If) tritt Cyclisierung zu den Phenanthrochromonen (IIa)‐(IIf) ein, wobei (IIf) als untrennbares Gemisch mit dem Isomeren (IIg) erhalten wird.
ChemInform Abstract: PHOSPHORAMIDES, VI. PHENYL N,N,N′,N′‐TETRAETHYLPHOSPHORODIAMIDATE AS A REAGENT IN SYNTHESES OF 2‐DIETHYLAMINOQUINOLINES
Authors: PEDERSEN E. B. , CARLSEN D.
Published: April 2016

Acetanilide (I) reagieren mit Diethylformamid (II) und Phosphorodiamidat (III) bei 250°C in mäßigen Ausbeuten zu 2‐Diethylaminochinolinen (IV).
ChemInform Abstract: HETEROCYCLIC SYNTHESES WITH MALONYL CHLORIDE. PART 12. CONFIRMATORY AND REVISIONARY EVIDENCE FOR STRUCTURES OF PRODUCTS DERIVED FROM 2‐ALKYL‐(OR‐ARY‐)THIO‐7‐CHLOROPYRANO(3,4‐E)(1,3)OXAZINE‐4,5‐DIONES
Authors: AL‐RAWI J. M. A. , ELVIDGE J. A.
Published: April 2016

Die Titelverbindung (I), die aus Malonylchlorid und dem entsprechenden Thiocyanat dargestellt wird, ergibt z.B. mit Methanol C)? die Produkte (II) und (III).
ChemInform Abstract: SYNTHESIS OF NEW TETRAPHENYLPORPHYRIN MOLECULES CONTAINING HETEROATOMS OTHER THAN NITROGEN. II. TETRAPHENYL‐21‐SELENA‐23‐THIAPORPHYRIN AND TETRAPHENYL‐21,23‐DISELENAPORPHYRIN
Authors: ULMAN A. , MANASSEN J. , FROLOW F. , RABINOVICH D.
Published: April 2016

Aus dem Diacetylen‐diol (I) erhält man mit Natriumselenid/Silberacetat das Selenophen (II), das mit Pyrrol (III) in Gegenwart von Sauerstoff und Chloressigsäure zu (IV) kondensiert.
ChemInform Abstract: ROLES OF TITANIUM COMPLEX IN THE CATALYTIC HYDROMETALATION AND ISOMERIZATION OF OLEFINS
Authors: ISAGAWA K. , TATSUMI K. , KOGUSI H. , OTUJI Y.
Published: April 2016

Bei der Behandlung mit Lithiumalanat erhält man aus Dicyclopentadienyltitandichlorid (I) das Alanat (II), das mit l‐Octen (III) in ein Addukt (IV) übergeht.
ChemInform Abstract: LIGAND SUBSTITUTION PHOTOCHEMISTRY OF MONOSUBSTITUTED DERIVATIVES OF TUNGSTEN HEXACARBONYL
Authors: DAHLGREN R. M. , ZINK J. I.
Published: April 2016

Die Photosubstitutionschemie der Monoligand‐W‐pentacarbonyle (I) wird untersucht und nach der Photoreaktivität in drei Kategorien eingeteilt.
ChemInform Abstract: THE ELECTROPHILIC ACETYLATION OF TRICARBONYL(CYCLOHEXA‐1,3‐DIENE)IRON
Authors: JOHNSON B. F. G. , LEWIS J. , PARKER D. G.
Published: April 2016

Durch Ver‐ ′ gleich mit einer stereospezifisch hergestellten Probe wird der Anteil an (III) im nicht aufgetrennten Reaktionsgemisch der Friedel‐Crafts‐Acylierung von (I) bestimmt.
ChemInform Abstract: SYNTHESIS OF 7‐HYDROXYCADALENAL
Authors: BELAVADI V. K. , KULKARNI S. N.
Published: April 2016

Die Titelverbindung (VI) wird durch sukzessives Dehydrieren des Ketoaldehyds (V) ‐ zuerst des funktionell substituierten Ringes mit DDQ, dann des zweiten Ringes katalytisch an Pd ‐ dargestellt.
ChemInform Abstract: EXPERIMENTS TOWARDS THE TOTAL SYNTHESIS OF BREFELDIN A
Authors: CURRAN D. P. , SCHOLZ D.
Published: April 2016

Der bekannte Ester (I) wird über die Stufe (II) in den Ester‐aldehyd (III) übergeführt, dessen Wittig‐Reaktion mit dem Phosphoniumsalz (IV) die Verbindung (Va) liefert.
ChemInform Abstract: NEW INFORMATION ON POTASSIUM HEXAFLUOROMANGANATE(IV), RUBIDIUM HEXAFLUOROMANGANATE(IV), AND CESIUM HEXAFLUOROMANGANATE(IV)
Authors: HOPPE R. , HOFMANN B.
Published: April 2016

Es werden erstmals reine Proben der kubischen Form von (I), deren Existenz bis jetzt nicht sicher belegt war, erhalten.