bluuebunny/crossref_metadata_2025 huggingface dataset:
First record of Mycena plumipes in Romania, with notes on its presence on pine cones
Authors: Chinan Vasilică Claudiu , Fusu Lucian
Published: May 2016

Mycena plumipes was found in Romania on fallen and partially buried cones of Pinus nigra and Picea abies. The analysis of ribosomal DNA internal transcribed spacer sequences showed that the specimens collected in Romania on P. nigra belong to M.
plumipes. This is the first record of M. plumipes in Romania and confirms that it grows on pine cones (as well as spruce cones), based on molecular and morphological data. A detailed description and illustrations of macroscopic and microscopic aspects of the Romanian specimens
are given.
Anacoronospora diversiseptata gen. & sp. nov. from Brazil
Authors: Monteiro Josiane Santana , Gusmão Luís Fernando Pascholati , Castañeda-Ruiz Rafael F.
Published: May 2016

The hyphomycete Anacoronospora diversiseptata, collected from decaying leaves from Caatinga biome, Brazil, is described and illustrated as a new genus and species. It is distinguished by mono- and polyblastic conidiogenous cells with successive sympodial rectilinear or geniculate
extension (sometimes delimited by one septum and followed by enteroblastic percurrent extension), which process is repeated several times. The conidia are oval to broad ellipsoidal, golden brown, and with a distoseptate main body, a subcylindrical or doliiform basal cell with 0–4 mammillate
protuberances, and a crown-shaped euseptate apex with 3–4 divergent cylindrical branches.
Book reviews and notices
Authors: Vellinga Else C. , Reese Naesborg Rikke
Published: May 2016

Books reviewed include: Field guides—The essential guide to Rocky Mountain mushrooms (Cripps, Evenson & Kuo 2016); Lichens—Keys to lichens of North America (Brodo 2016).
Concurso aparente de Leyes y Concurso de Delitos
Authors: Hernández Sánchez Jeovanny Joel
Published: May 2016

En la presente investigación se desarrolla el tema “Concurso Aparente de Leyes Penales y Concurso de Delitos”, el cual presenta cierto grado de dificultad no sólo en la enseñanza, sino en el ejercicio profesional, por lo que se aborda el mismo, desde el punto de vista doctrinario, referente a sus orígenes, como se regula en alguna legislación comparada, para concluir su estudio en la forma en que está regulado en nuestro actual Código Penal. Además, de la explicación doctrinaria, se incluye en el trabajo ejemplos prácticos sobre el tema, lo cual ayudará a la mejor comprensión del mismo, ya que de lo contrario resulta difícil su comprensión y aplicación a los casos concretos. Se espera que con el desarrollo de este tema, se contribuya en forma positiva a la comprensión del mismo, así como en su aplicación, logrando con ello que las penas que se apliquen a las personas que cometan hechos delictivos, se fundamenten en la forma en que estas figuras jurídicas son reguladas en el Código Penal, contribuyendo con ello a la mejor aplicación de la justicia, mediante el respeto de los derechos constitucionales de los imputados.
Computing of Z- valued Characters for the Projective Special Linear Group L2 (2m) and the Conway Group Co3
Authors: Moghani Ali
Published: May 2016

According to the main result of W. Feit and G. M. Seitz (see, Illinois J. Math. 33 (1), 103-131, 1988), the projective special linear group L2 (2m) for m = 3, 4, 5 and the smallest Conway group Co3 are unmatured groups. In this paper, we continue our study on special finite groups (see Int. J. Theo. Physics, Group Theory, and Nonlinear Optics (17)1, 57-62, 2013) and the dominant classes and Q- conjugacy characters for the above groups are derived.
Epigenetic Library Screen Identifies Abexinostat as Novel Regulator of Adipocytic and Osteoblastic Differentiation of Human Skeletal (Mesenchymal) Stem Cells
Authors: Ali Dalia , Hamam Rimi , Alfayez Musaed , Kassem Moustapha , Aldahmash Abdullah , Alajez Nehad M.
Published: May 2016

The epigenetic mechanisms promoting lineage-specific commitment of human skeletal (mesenchymal or stromal) stem cells (hMSCs) into adipocytes or osteoblasts are still not fully understood. Herein, we performed an epigenetic library functional screen and identified several novel compounds, including abexinostat, which promoted adipocytic and osteoblastic differentiation of hMSCs. Using gene expression microarrays, chromatin immunoprecipitation for H3K9Ac combined with high-throughput DNA sequencing (ChIP-seq), and bioinformatics, we identified several key genes involved in regulating stem cell proliferation and differentiation that were targeted by abexinostat. Concordantly, ChIP-quantitative polymerase chain reaction revealed marked increase in H3K9Ac epigenetic mark on the promoter region of AdipoQ, FABP4, PPARγ, KLF15, CEBPA, SP7, and ALPL in abexinostat-treated hMSCs. Pharmacological inhibition of focal adhesion kinase (PF-573228) or insulin-like growth factor-1R/insulin receptor (NVP-AEW51) signaling exhibited significant inhibition of abexinostat-mediated adipocytic differentiation, whereas inhibition of WNT (XAV939) or transforming growth factor-β (SB505124) signaling abrogated abexinostat-mediated osteogenic differentiation of hMSCs. Our findings provide insight into the understanding of the relationship between the epigenetic effect of histone deacetylase inhibitors, transcription factors, and differentiation pathways governing adipocyte and osteoblast differentiation. Manipulating such pathways allows a novel use for epigenetic compounds in hMSC-based therapies and tissue engineering.

Significance

This unbiased epigenetic library functional screen identified several novel compounds, including abexinostat, that promoted adipocytic and osteoblastic differentiation of human skeletal (mesenchymal or stromal) stem cells (hMSCs). These data provide new insight into the understanding of the relationship between the epigenetic effect of histone deacetylase inhibitors, transcription factors, and differentiation pathways controlling adipocyte and osteoblast differentiation of hMSCs. Manipulating such pathways allows a novel use for epigenetic compounds in hMSC-based therapies for tissue engineering, bone disease, obesity, and metabolic-disorders.
Socio – demografske determinante školskog uspjeha
Authors: Vuksanović Gorica , Rašević Ljiljana , Pavlović Andrijana , Zečević Ivana
Published: May 2016

Uvod. Uspjeh učenika, kao vaspitno-obrazovni fenomen škole, bio je i ostaopredmet interesovanja mnogih naučnika čiji su rezultati istraživanja imaliteorijski i empirijski karakter. To je predmet i ovog rada čiji je cilj ispitivanje ianaliziranje povezanosti socio-demografskih karakteristika učenika i njihovoguspjeha u školi. Metod. U ovom radu koristili smo dvije naučno-istraživačke metode: metodteorijske analize i empirijsko–neeksperimentalni metod. Uzorak istraživanjačini 309 ispitanika (140 dječaka i 169 djevojčica), a u svrhu eksploracije osnovnogproblema i cilja istraživanja korišten je anketni upitnik za učenike. Rezultati. Između djevojčica i dječaka postoji značajna razlika u školskomuspjehu (χ2=18,51, p=0,000) i djevojčice postižu bolji školski uspjeh od dječaka.Postoji značajna razlika u školskom uspjehu između učenika osnovnih isrednjih škola (χ2=13,48, p=0,004). Odličnih i vrlodobrih više je među osnovnoškolcima,dok je među dovoljnim i đacima koji postižu dobar uspjehviše srednjoškolaca. Mjesto stanovanja je značajan izvor razlika u školskomuspjehu (χ2=28,28, p=0,000). Najveći broj odličnih i vrlodobrih učenika je izgrada, dok je među dovoljnim i dobrim najviše učenika iz prigradskih naseljai iz sela. Postoji razlika u školskom uspjehu učenika s obzirom na obrazovanjemajke (χ2=35,93, p=0,000). Bolji školski uspjeh postižu učenici čije majke suzavršile visoku ili višu školu od onih učenika čije majke su završile srednjui osnovnu školu. Ne postoji značajna razlika u školskom uspjehu učenika sobzirom na obrazovanje oca i odnos porodice prema učenju. Zaključak. Pol, škola koju učenik pohađa, mjesto stanovanja i obrazovanjemajke predstavljaju socio-demografske činioce koji su značajno povezani sa školskim uspjehom ispitanih učenika.
Effect of a large and very shallow lake on local summer precipitation over the Lake Taihu basin in China
Authors: Gu Hongping , Ma Zhuguo , Li Mingxing
Published: May 2016

Lake Taihu is the third largest freshwater lake in China and is situated in the Middle and lower Yangtze River delta. It is characterized by its shallowness (~1.9 m), large area (~2338 km2), and high turbidity in recent years. The lake's effect on local summer precipitation is first studied in this paper through the use of an atmosphere‐lake coupled model. By enlarging the light extinction coefficient, modifying the radiation scheme, and setting the roughness length to constants, the coupled model after adjustment realistically reproduces the thermal stratification and magnitude of diurnal variation over Lake Taihu, with mean biases of 0.7°C for lake surface temperature and 0.4°C for near‐surface air temperature, respectively. Based on this calibrated coupled model, two high‐resolution numerical simulations with and without the lake (lake grid cells replaced by cropland) were conducted to identify the lake effects. The results show that an overall effect of Lake Taihu on local summer precipitation is negative during daytime and positive during nighttime and the precipitation pattern may be modified to some extent. The lake effect varies between areas and with time of day and occurs primarily on the downwind shore. A composite analysis for a representative decreased precipitation region reveals that during daytime in the summer, the combination of decreased air temperature and latent heat flux, along with intensified divergence and downdraft, acts together to stabilize the lower atmosphere and suppress thermal convective activities, ultimately resulting in less precipitation over this region.
Estimation of net ecosystem production in Asia using the diagnostic‐type ecosystem model with a 10 km grid‐scale resolution
Authors: Sasai Takahiro , Obikawa Hiroki , Murakami Kazutaka , Kato Soushi , Matsunaga Tsuneo , Nemani Ramakrishna R.
Published: May 2016

The terrestrial carbon cycle in Asia is highly uncertain, and it affects our understanding of global warming. One of the important issues is the need for an enhancement of spatial resolution, since local regions in Asia are heterogeneous with regard to meteorology, land form, and land cover type, which greatly impacts the detailed spatial patterns in its ecosystem. Thus, an important goal of this study is to reasonably reproduce the heterogeneous biogeochemical patterns in Asia by enhancing the spatial resolution of the ecosystem model biosphere model integrating eco‐physiological and mechanistic approaches using satellite data (BEAMS). We estimated net ecosystem production (NEP) over eastern Asia and examined the spatial differences in the factors controlling NEP by using a 10 km grid‐scale approach over two different decades (2001–2010 and 2091–2100). The present and future meteorological inputs were derived from satellite observations and the downscaled Coupled Model Intercomparison Project Phase 5 (CMIP5) data set, respectively. The results showed that the present NEP in whole eastern Asia was carbon source (−214.9 TgC yr−1) and in future scenarios, the greatest positive (76.4 TgC yr−1) and least negative (−95.9 TgC yr−1) NEPs were estimated from the Representative Concentration Pathways (RCP) 6.0 and RCP8.5 scenarios, respectively. Calculated annual NEP in RCP8.5 was mostly positive in the southern part of East Asia and Southeast Asia and negative in northern and central parts of East Asia. Under the RCP scenario with higher greenhouse gases emission (RCP8.5), deciduous needleleaf and mixed forests distributed in the middle and high latitudes served as carbon source. In contrast, evergreen broadleaf forests distributed in low latitudes served as carbon sink. The sensitivity study demonstrated that the spatial tendency of NEP was largely influenced by atmospheric CO2 and temperature.
Expression of nephronectin is enhanced by 1α,25‐dihydroxyvitamin D3
Authors: Hiranuma Katsuhiro , Yamada Atsushi , Kurosawa Tamaki , Aizawa Ryo , Suzuki Dai , Saito Yoshiro , Nagahama Ryo , Ikehata Mikiko , Tsukasaki Masayuki , Morimura Naoko , Chikazu Daichi , Maki Koutaro , Shirota Tatsuo , Takami Masamichi , Yamamoto Matsuo , Iijima Takehiko , Kamijo Ryutaro
Published: May 2016

The extracellular matrix protein nephronectin (Npnt), also called POEM, is considered to play critical roles as an adhesion molecule in development and functions of various tissues, such as the kidneys, liver, and bone. In the present study, we examined the molecular mechanism of Npnt gene expression and found that vitamin D3 (1α,25‐dihydroxyvitamin D3,VD3) strongly enhanced Npnt mRNA expression in MC3T3‐E1 cells from a mouse osteoblastic cell line. The VD3‐induced increase in Npnt expression is both time‐ and dose‐dependent and is mediated by the vitamin D receptor (VDR).
Catalytic decomposition of propellant N2O Over Ir/Al2O3 catalyst
Authors: Lin Jian , Li Lin , Pan Xiaoli , Wang Xiaodong , Cong Yu , Zhang Tao , Zhu Shaomin
Published: May 2016

N2O, as a green propellant alternative to N2H4, shows potential application in satellite propulsion system. The state of Ir species and the reaction behaviors on Ir/Al2O3 in the oxidative environment during N2O decomposition were identified here. Two types of Ir sites existed in this catalyst and affected the process of N2O decomposition. The strong Ir sites facilitated the dissociative adsorption of N2O to form N2 and adsorbed O atoms with adsorption heat of as high as 281 kJ/mol, which promoted the desorption of adsorbed O atoms and favored the self‐sustaining decomposition of N2O by raising the catalyst bed temperature. The other Ir sites interacted weakly with O atoms but facilitated their combination to form O2. The Ir/Al2O3 catalyst then exhibited an excellent performance in initiating the decomposition of N2O at low temperature of 200°C and good stability in 0.1 N microthruster for orbit adjustment and attitude control of satellite. © 2016 American Institute of Chemical Engineers AIChE J, 62: 3973–3981, 2016
Dasatinib in imatinib‐resistant or ‐intolerant chronic‐phase, chronic myeloid leukemia patients: 7‐year follow‐up of study CA180‐034
Authors: Shah Neil P. , Rousselot Philippe , Schiffer Charles , Rea Delphine , Cortes Jorge E. , Milone Jorge , Mohamed Hesham , Healey Diane , Kantarjian Hagop , Hochhaus Andreas , Saglio Giuseppe
Published: May 2016

Dasatinib was approved at 100 mg once daily for imatinib‐resistant or ‐intolerant patients with chronic myeloid leukemia (CML) in chronic phase, based on results of the phase 3 CA180‐034 (NCT00123474) study. Here we present the final 7‐year analysis of this pivotal study, the longest follow‐up to date of any second‐generation BCR–ABL1 tyrosine kinase inhibitor (TKI). Patients (n = 670) with imatinib‐resistant or ‐intolerant CML in chronic phase received dasatinib. Nineteen percent of patients continued on study treatment, with a greater proportion in the 100 mg once daily arm remaining on therapy. Seven‐year rates for major molecular response (MMR), progression‐free survival (PFS), and overall survival (OS) were similar across doses; MMR, PFS, and OS results were 46, 42, and 65% at 100 mg once daily, respectively. Improved PFS and OS rates were reported in patients who achieved BCR–ABL1 ≤10% at 3 and 6 months. No new safety signals were identified. The incidence of drug‐related pleural effusion was 28% at 100 mg once daily and 35% at the other three dose groups. Incidence of drug‐related pulmonary hypertension and pulmonary arterial hypertension remained low (≤3% across all doses). Arterial ischemic events occurred in ≤4% of patients across all doses. These data support the long‐term efficacy and well‐established safety profile of dasatinib for patients with imatinib‐resistant or ‐intolerant CML in chronic phase. Am. J. Hematol. 91:869–874, 2016. © 2016 Wiley Periodicals, Inc.
Recycling of wood fiber‐reinforced HDPE by multiple reprocessing
Authors: Åkesson Dan , Fuchs Torsten , Stöss Michael , Root Andrew , Stenvall Erik , Skrifvars Mikael
Published: May 2016

The mechanical recycling of high‐density polyethylene (HDPE) reinforced with wood fiber was studied by means of repeated injection moulding. The change in properties during the recycling was monitored by tensile and flexural tests, Charpy impact tests, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), FTIR spectroscopy, and by measuring the fiber lengths. Tests were also done where injection moulding was combined with subsequent accelerated thermo‐oxidative ageing and thereafter repeated numerous times. The results showed that the HDPE composites were relatively stable toward both the ageing conditions and the repeated injection moulding. The change of the mechanical properties was mainly observed as an increased elongation at max. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43877.
Effects of Multiple Recycling on the Structure and Morphology of SEBS/PP Composites
Authors: Kim Jung‐Keun , Kim Chung‐Hyeon , Park Myoung‐Hwan
Published: May 2016

A study of the chemical, mechanical, rheological, and morphological properties of recycled styrene–ethylene–butylene–styrene/polypropylene (SEBS/PP) composites was performed to investigate the viability of the application of these materials as recyclable halogen‐free alternatives to plasticized poly(vinyl chloride). The SEBS and PP were initially compounded in a ratio of 3:7 and repeatedly recycled. After over ten rounds of recycling, the SEBS/PP composites exhibited no significant changes either in tensile strength or in tensile elongation. However, a reduction in hardness, decrease in the temperature of the onset of thermal decomposition, and significant increase in their melt flow index (MFI) values were observed. Notably, X‐ray scattering measurement and transmission electron microscopy experiments of the SEBS/PP composites indicated that these changes in hardness and MFI originated from morphological changes of the SEBS/PP composites resulting from thermal degradation of the SEBS triblock copolymers that occurred over multiple rounds of recycling.
Variability of Atmospheric Radon‐222 and Secondary Aerosol Components in Accordance with Air Mass Transport Pathways at Jeju Island, Korea, during 2011–2014
Authors: Bu Jun‐Oh , Song Jung‐Min , Kim Won‐Hyung , Kang Chang‐Hee , Chambers Scott D. , Williams Alastair G. , Lee Chulkyu
Published: May 2016

Real‐time monitoring of hourly atmospheric Radon‐222 concentration and three daily monitoring of the secondary aerosol components of PM10
were performed throughout 2011–2014 at Gosan station, Jeju Island, in order to characterize their background levels and temporal variation. The annual mean radon and PM10
mass concentrations were 2326 ± 1198 mBq/m3 and 37.1 ± 19.5 µg/m3, respectively. Based on cluster analyses of air mass back trajectories, the frequencies of air masses originating from continental China, the Korean Peninsula, and North Pacific Ocean routes were 53, 28, and 19%, respectively. When the air masses were transported to Jeju Island from continental China, the concentrations of radon and secondary aerosol components (nss‐SO4
2

−, NO3

−, NH4

+) were relatively high: 2577 mBq/m3 and 14.4 µg/m3, respectively. In cases when the air masses have moved from the Korean Peninsula, the corresponding concentrations were 2247 mBq/m3 and 11.4 µg/m3, respectively. On the other hand, when the air masses came from the North Pacific Ocean, their radon and secondary aerosol concentrations decreased much further, 1372 mBq/m3 and 10.5 µg/m3, respectively. Consequently, the variability of atmospheric radon concentrations at Gosan station might be characterized by synoptic changes in air mass fetch as well as diurnal changes in atmospheric mixing depth.
Use of Commercial MALDI‐TOFs for Analyte Quantification by a Newly Invented Method
Authors: Park Kyung Man , Yoon Sohee , Moon Jeong Hee , Lee Seong Hoon , Kim Myung Soo
Published: May 2016

As part of the recently developed quantification method using matrix‐assisted laser desorption ionization, matrix ion abundances are used to control the effective temperature, to construct a calibration curve, and to check the reliability of the quantification results. This method has not been used with commercial instruments owing to the difficulties in measuring the matrix ion abundances. In this work, we present a modification of each of the above guidelines to allow for quantification with commercial instruments. The modified method works with commercial instruments, which is partial proof for the validity of the method.
fMRI exploration of pedagogical benefits of repeated testing: when more is not always better
Authors: Liu Xiaonan L. , Reder Lynne M.
Published: May 2016

Introduction

The testing effect refers to superior retention when study is followed by a test rather than followed by another study. Most research to date on why the testing effect occurs has been behavioral, but we employed neuroimaging methods in this study in order to shed light on the underlying processes.

Methods

Subjects were scanned while studying, restudying, and taking cued‐recall tests of word pairs (with no feedback). We analyzed the BOLD responses by back sorting the encoding and test trials based on whether the subsequent test was correct or incorrect. We compared the subsequent memory patterns in initial study, restudy, and test trials.

Results

Overall, brain activity during test trials was a better predictor of later performance than brain activity during restudy trials. For test trials, we separately examined brain regions associated with the retrieval attempt process during successful retrieval and regions associated with the re‐encoding process during retrieval in terms of prediction of subsequent memory. Regions associated with retrieval attempts were found to always predict subsequent memory success (the greater the activation, the more likely the correct recall); however, the regions associated with re‐encoding would sometimes predict subsequent failure, specifically when subjects had correctly recalled the associated word several times already.

Conclusions

These results suggest that whether a testing effect advantage is observed depends on both on the retrieval process and the re‐encoding process which follows that retrieval.
ChemInform Abstract: Structural Characterization of Fe‐Al‐C Permanent Magnetic Alloys.
Authors: SZYMURA S.
Published: May 2016

The microstructure of the FeAl7.91C1.98 alloy has been studied (TEM) in the state of optimum magnetic properties, i.e., after quenching from 1200 °C in oil to room temp., followed by tempering at 300 °C. The existence of rectangular precipitates of the Fe3AlC phase generating along .ltbbrac.100.rtbbrac.
ChemInform Abstract: On a Solid‐State ECD, WO3/Solid Electrolyte/Metal.
Authors: KUWABARA K. , ICHIKAWA S. , SUGIYAMA K.
Published: May 2016

The influence of the material of the counter electrode on the electrochromic behavior of solid‐state ECD (electrochromic display) cells has been investigated.
ChemInform Abstract: Catalytic Synthesis of Potassium Hydride.
Authors: BASTIDE J. P. , CLAUDY P. , LETOFFE J. M. , ELIOUDIS PH.
Published: May 2016

A preparation method is described which involves the use of benzene or toluene as dispersion medium and phenanthrene as catalyst.
ChemInform Abstract: Synthesis and Properties of Gallium Tetramethylammonium Sodalite, NMe4GaSi5O12.
Authors: LORTZ W. , SCHOEN G. +
Published: May 2016

The title compound has been obtained in 70% yield (based on Ga) from the hydrothermal reaction of tetramethoxosilane, NMe4OH, and Ga2O3 (autoclave, 180 °C, 5 d).
ChemInform Abstract: Spin‐Lattice Relaxation Time Studies and Vibrational Spectra of Solid Tricarbonyl(η7‐tropylium)chromium(0) and ‐molybdenum(0) Tetrafluoroborates, ((η7‐C7H7)M(CO)3)BF4 (M: Cr, Mo).
Authors: HARVEY P. D. , BUTLER I. S. , GILSON D. F. R.
Published: May 2016

By both 1H and 19F spin‐spin lattice relaxation times over the temp. range 296‐293 K and FT‐IR and Raman spectroscopic measurements the barriers to reorientation of the tropylium ring and the BF4‐ ion in the solid title complexes are investigated.
ChemInform Abstract: Magnetism of Mn(II)Cu(II) and Ni(II)Cu(II) Ordered Bimetallic Chains. Crystal Structure of MnCu(pba)(H2O)3·2 H2O (pba: 1,3‐Propylenebis(oxamato)).
Authors: PEI Y. , VERDAGUER M. , KAHN O. , SLETTEN J. , RENARD J.‐P.
Published: May 2016

The two complexes (I) are prepared from the dianion (Cu(pba))2‐. The X‐ray structure of (Ia) (space group Pnma, Z=4) consists of ordered bimetallic chains with octahedral Mn(II) and square‐pyramidal Cu(II) ions bridged by oxamato groups.
ChemInform Abstract: A Periodic Table for Polycyclic Aromatic Hydrocarbons. Part 10. Characteristic Polynomial and Other Structural Invariants.
Authors: DIAS J. R.
Published: May 2016

A method for calculation of the HMO characteristic polynomial for many small molecular graphs by inspection is reviewed.
ChemInform Abstract: Nineteen‐Electron Adducts: Measurement of δG° for the Reactions of CpMo(CO)3 with Halide Ligands (Cp: CH3C5H4).
Authors: PHILBIN C. E. , GRANATIR C. A. , TYLER D. R.
Published: May 2016

In the photochemical reaction of halides X‐ with Cp2Mo2(CO)6 a mechanism is considered, in which the initially formed 17‐electron species CpMo(CO)3 reacts with X‐ to form the 19‐electron adducts CpMo(CO)3X‐.
ChemInform Abstract: A δ‐Lactone Synthesis Involving an Intramolecular 1,4‐Addition of α‐Iodoacetates to Enones.
Authors: DEMIR A. S. , GROSS R. S. , DUNLAP N. K. , BASHIR‐HASHEMI A. , WATT D. S.
Published: May 2016

The intramolecular addition of the iodoacetates (Ia) ‐ (Ic) to their enone subunits in the presence of iodotrimethylsilane (II) affords the δ‐lactones (IIIa) ‐ (IIIc).
ChemInform Abstract: Effective Method for the Synthesis of Unsaturated Substituted Hydrazines with Participation of Complex Palladium Catalysts.
Authors: TELIN A. G. , FAKHRETDINOV R. N. , DZHEMILEV U.
Published: May 2016

Reaction of hydrazine hydrate (Ia) with butadiene (II) in the presence of a Pd catalyst produces the dioctadienylhydrazine (IIIa) and the azo compound (IIIb), depending on the ligand, the activator, and the solvent used.
ChemInform Abstract: Directed Resolution of 2‐Fluoro‐2‐methylhexanoic Acid.
Authors: DE MUNARI S. , MARAZZI G. , FAUSTINI F. , VILLA V. , CARLUCCIO L.
Published: May 2016

Optical resolution of the racemic hexanoic acids (I) is achieved by formation of the diastereomeric amides (III).
ChemInform Abstract: Nickel Complex Induced C‐C‐Linkage of Carbon Dioxide with Trienes.
Authors: BEHR A. , KANNE U.
Published: May 2016

The octatriene (I) reacts with carbon dioxide (II) in the presence of the nickel complex (III), producing a mixture of the two intermediates (IV) and (V).
ChemInform Abstract: A One‐Step Preparation of (E)‐4‐Mercapto‐2‐butenoic Esters and Nitriles. Relative Michael Reactivities in Simple Unsaturated Systems.
Authors: BUNCE R. A. , PIERCE J. D.
Published: May 2016

Wittig reaction of the phosphorane ylides (Ia) ‐ (Id) with dimeric mercaptoacetaldehyde (II) gives the mercapto derivatives (IIIa) ‐ (IIId).
ChemInform Abstract: First Isolation of a Stable Aliphatic Thioaldehyde, Tris(trimethylsilyl)ethanethial.
Authors: OKAZAKI R. , ISHII A. , INAMOTO N.
Published: May 2016

The crystalline pink‐red colored ethanethial (II) is obtained together with (III) from (I) and O‐ethyl thioformate.
ChemInform Abstract: Novel Synthesis of Indan Derivatives.
Authors: KASHIHARA H. , SHINOKI H. , SUEMUNE H. , SAKAI K.
Published: May 2016

The acylacetates (I) are coupled with the aldehydes (II), producing the pyrandiones (III).
ChemInform Abstract: Efficient Preparation of Homochiral Bicyclo‐Annulated Cyclopentadienes via the Skattebol Rearrangement. Avoidance of Limitations due to Angle Strain. Part 36.
Authors: MCLAUGHLIN M. L. , MCKINNEY J. A. , PAQUETTE L. A.
Published: May 2016

(R)‐Camphor (I) is converted to the enol triflate (III) by reaction with the trifluoromethanesulfonimide (II).
ChemInform Abstract: Electrophilic Substitution of Indoles. Part 9. Reaction of Indoles with Iminium Systems.
Authors: BANERJI J. , SAHA M. , CHAKRABARTI R. , DAS A. K. , PANDIT U. K. , CHATTERJEE A. , SHOOLERY J. N.
Published: May 2016

Reactions of indole (II) or 2‐methylindole (VII) with the benzylideneanilines (I) yield the products shown in the scheme.
ChemInform Abstract: A New Route to 4‐, 5‐, and 6‐Indolecarboxylic Acids.
Authors: KASAHARA A. , IZUMI T. , YANAI H. , MURAKAMI S. , TAKATORI M.
Published: May 2016

The o‐bromoanilines (I) are coupled with the olefins (II) in the presence of Pd(II) acetate, yielding the vinyl or styryl substituted anilines (III).
ChemInform Abstract: Synthesis and Cycloaddition Reaction of 2‐Cyano‐3‐indoleacetonitriles.
Authors: KURIHARA T. , HANAKAWA M. , HARUSAWA S. , YONEDA R.
Published: May 2016

The formylindoles (I) and the ketones (VII) react with diethyl phosphorocyanidate (II), producing the compounds (III), (V), (VIII), or (IX).
ChemInform Abstract: Nitriles in Heterocyclic Synthesis: Novel Synthesis of Pyrrole and Pyridine Derivatives.
Authors: ABDEL‐GALIL F. M. , SALLAM M. M. , SHERIF S. M. , ELNAGDI M. H.
Published: May 2016

The N‐arylmaleimides (I) and cyanothioacetamide (II) are combined to yield the pyrrolo(3,2‐b)pyrrole derivatives (III).
ChemInform Abstract: Absolute Configuration of 1,2,3,4‐Tetrahydro‐4‐hydroxyisoquinolines.
Authors: SNATZKE G. , MEESE C. O.
Published: May 2016

Benzylic hydroxylation of the achiral isoquinoline derivative debrisoquine (I), the major pathway of metabolization in man, predominantly leads to the (+)‐(S)‐compound (IIa).
ChemInform Abstract: Synthesis and 1,3‐Dipolar Cycloaddition of 3‐Hydroxy‐5‐methoxypyridinium N‐Imine.
Authors: CHEN L.‐C. , YANG S.‐C.
Published: May 2016

The enolether (I), prepared from the corresponding dione and methanol/ gaseous HCl, is converted to the hydroxymethoxypyridinium N‐imine (V).
ChemInform Abstract: Agents Acting on CNS. Part 34. 1,2,3,4,4a,5,6,7‐Octahydropyrazino(1,2‐a)‐1‐benzazepines.
Authors: BHANDARI K. , MURTI V. A. , ANAND N.
Published: May 2016

Since compounds of type (I) possess remarkable antidepressant and hypotensive activity, homologues of type (VIb), obtained from (VIa) by essentially known methods, and (VIII) are synthesized (in part no yield given).
ChemInform Abstract: New Approaches to Synthetic Receptors. Synthesis and Host Properties of a Water Soluble Macrocyclic Analog of Trger′s Base.
Authors: WILCOX C. S. , COWART M. D.
Published: May 2016

Reaction of the dibromide (I) with the bistosylate (II) in the presence of Cs2CO3, followed by reductive cleavage, yields the macrocyclic diamine (IV), which is tested as a model for receptor binding studies with benzenoid substrates, e.g. 4‐methyl‐, 4‐cyano‐, and 2,4,6‐trimethylphenol respectively.
ChemInform Abstract: Boron‐Nitrogen Compounds. Part 112. Chemical Behavior and Structure of Triply Bridged Pyrazaboles of the Type RB(μ‐pz)2(μ‐OBRO)BR.
Authors: HSU L.‐Y. , MARIATEGUI J. F. , NIEDENZU K. , SHORE S. G.
Published: May 2016

The structure of the triply bridged pyrazaboles (I) is investigated by an X‐ray analysis of (Ia) (space group P21/c, Z=4).
ChemInform Abstract: Synthesis of Fluorinated Polysiloxanes. Part 4. Preparation of Fluorinated Disiloxanes.
Authors: BOUTEVIN B. , PIETRASANTA Y. , YOUSSEF B.
Published: May 2016

Two general synthetic methods for the synthesis of fluorinated disiloxanes are described.
ChemInform Abstract: Reaction of Silylene with Allenes: Alkylidenesilacyclopropane and Silatrimethylenemethane.
Authors: ANDO W. , SASO H.
Published: May 2016

Irradiation of the trisilane (I) in the presence of the allene (II) leads to the formation of the products (III) and (IV) respectively.
ChemInform Abstract: New Access to Functionalized Dichlorophosphines: Synthesis of Two Coordinated Phosphorus Heterocycles.
Authors: PELLON P. , HAMELIN J.
Published: May 2016

The silylketene acetals (Ia) ‐ (Ic) and (IVa) and (IVb) react with PCl3 to give the dichlorophosphines (IIa) ‐ (IIc) and (Va) and (Vb) respectively.
ChemInform Abstract: Pentacoordinated Molecules. Part 68. Distortion Coordinate for Nonrigid Five‐Coordinated Antimony. Synthesis and Structure of Oxygen‐ and Sulfur‐Containing Cyclic Organostiboranes.
Authors: HOLMES R. R. , DAY R. O. , CHANDRASEKHAR V. , HOLMES J. M.
Published: May 2016

The monocyclic stiboranes (I) and (II) are synthesized by the reaction of Ph3SbCl2 with the corresponding ligands or their anions; whereas the bicyclic stiborane (III) is obtained from p‐tolylstibonic acid and pinacol.
ChemInform Abstract: Facile Reductive Cleavage of the C=O Bond of Acyl Halides and the CN Bond of Nitriles by Hydrogen in the Presence of Sulfido‐Bridged Molybdenum Complexes.
Authors: COONS D. E. , LAURIE J. C. V. , HALTIWANGER R. C. , RAKOWSKI DUBOIS M.
Published: May 2016

When a solution containing (I) and excess acyl halide is placed under an atmosphere of H2, the complex salt (IIIa) is formed as the final product via the transient compound (II), identified by NMR.
ChemInform Abstract: Metal‐Nitroxyl Interactions. Part 49. Molecular Structure and EPR Spectra of Dichloro(bis((1‐pyrazolyl)methyl)(2,2,6,6‐tetramethyl‐1‐oxy‐4‐piperidinyl)amine)copper(II) and EPR Studies of Copper‐Nitroxyl Exchange in Related Compounds.
Authors: REIBENSPIES J. H. , ANDERSON O. P. , EATON S. S. , MORE K. M. , EATON G. R.
Published: May 2016

The structure of the title compound (Ia) (space group P21/c, Z=4) is determined by single‐crystal X‐ray diffraction.
ChemInform Abstract: Catalytic Asymmetric Synthesis of Amino Acid Amides Using 2‐Trifluoromethyl‐δ2‐ and Trifluoromethyl‐δ3‐oxazolin‐5‐ones.
Authors: BITIEV SH. G. , CHEL'TSOVA G. V. , KARTEISKAYA E. I. , KLABUNOVSKII E. I.
Published: May 2016

The reduction of the Δ2‐oxazolinones (I) in the presence of (S)‐(‐)‐α‐ phenylethylamine (II) leads to the formation of the amide (III), preferred in the (R,S)‐configuration.
ChemInform Abstract: The Synthesis of Optically Pure Methyl 4‐Deoxyheptosides via cis‐Hydroxylation of the Double Bond of Dihydro‐2H‐Pyran Type (4 + 2)‐Cycloadducts.
Authors: JURCZAK J. , BAUER T. , KIHLBERG J.
Published: May 2016

High pressure cycloaddition of the diene (I) to the aldehyde (II) yields the pyran derivatives (III) and (IV) as diastereomeric mixtures.
ChemInform Abstract: Chemical Transformation of N‐(Protected)‐O‐(3,4,6‐Tri‐O‐acetyl‐2‐deoxy‐2‐hydroxyimino‐D‐arabino‐hexopyranosyl)‐L‐hydroxyamino Acid Methyl Esters into 2,3,4,6‐Tetra‐O‐acetyl‐D‐glycopyranoside Derivatives.
Authors: SMIATACZ Z. , PASZKIEWICZ E.
Published: May 2016

The 2,3,4,6‐tetraacetyl‐α‐glycopyranosides (III) are synthesized starting from the corresponding 2‐deoxy‐2‐hydroxyimino‐arabinosyl serinates or threoninates (I) by the sequence of reactions shown in the scheme (A).
ChemInform Abstract: Synthesis of Oligosaccharides Corresponding to Biological Repeating Units of Shigella flexneri Variant Y Polysaccharide. Part 1. Overall Strategy, Synthesis of a Key Trisaccharide Intermediate, and Synthesis of a Pentasaccharide.
Authors: PINTO B. M. , MORISSETTE D. G. , BUNDLE D. R.
Published: May 2016

The overall strategy for the synthesis of penta‐ up to octa‐saccharides, representing the biological repeating unit of Shigella flexneri serogroup Y lipopolysaccharide, is described and the preparation of the pentasaccharide (VII) is performed.
ChemInform Abstract: An Efficient Total Synthesis of (.+‐.)‐Epilupinine and (.+‐.)‐Lupinine from a Common Quinolizidine Intermediate.
Authors: TAKAHATA H. , YAMABE K. , SUZUKI T. , YAMAZAKI T.
Published: May 2016

The synthesis of (±)‐epilupinine (Ia) and (±)‐lupinine (Ib) via the intermediate (VI) is described.
ChemInform Abstract: A Useful Construction of 4‐Substituted 1‐Alkylpiperid‐3‐ones.
Authors: SWINDELL C. S. , DUFFY R. H.
Published: May 2016

The piperidinols (VI), prepared from the Grignard reagents (I) and the halopyridines (II) as outlined in the reaction scheme, cannot be oxidized to give the piperidones (VII).
ChemInform Abstract: A Total Synthesis of Acivicin.
Authors: MZENGEZA S. , YANG C. M. , WHITNEY R. A.
Published: May 2016

The nitrones (I), generated in situ from the corresponding oximes, react with the L‐vinylglycine derivatives (II) to give mixtures of the isoxazolidines (III) and (IV).
ChemInform Abstract: Photoenolisation of Conjugated Esters: Synthesis of a San Jose Scale Pheromone by Partially Regiocontrolled Photochemical Deconjugation.
Authors: LOMBARDO D. A. , WEEDON A. C.
Published: May 2016

The unsaturated ester (IX) can be obtained as an E/Z‐mixture, starting with the ester (I) as shown in the reaction scheme.
ChemInform Abstract: Factors Governing the Synthesis of Zeolites from Silicoaluminate Hydrogels: A Comparative Study of the Crystallization Mechanisms of Zeolites Y, Mordenite and ZSM‐5
Authors: BODART P. , NAGY J. B. , GABELICA Z. , DEROUANE E. G.
Published: May 2016

Review: (80 refs.
ChemInform Abstract: Mechanical Activation of Solids and Its Application to Technology
Authors: BOLDYREV V. V.
Published: May 2016

Review: (principal problems of mechanochemistry concerning inorganic solids and application to modern technology; 133 refs.
ChemInform Abstract: Preparation of Homodisperse Solids
Authors: HARUTA M. , DELMON B.
Published: May 2016

Review: (methods for preparation of homodisperse inorganic solids, general principles and techniques, case studies, and prospects for new developments; 147 refs.
ChemInform Abstract: Matrix Isolation and Mass Spectrometric Studies on Selenium Trioxide Vapour: The Characterisation of Monomeric SeO3.
Authors: BRISDON A. K. , OGDEN J. S.
Published: May 2016

(SeO3)4 is shown to be the major species in the vapour above heated selenium trioxide, while above mixtures of H2SeO4/P2O5 significant portions of monomeric SeO3 are observed.
ChemInform Abstract: closo‐Halogenohydrohexaborates. Part 2. 11B NMR Spectra of the closo‐Halogenohydrohexaborates XnB6H2‐ 6‐n, n = 0‐6, X: Cl, Br, I.
Authors: FRITZE J. , PREETZ W. , MARSMANN H. C.
Published: May 2016

The point symmetries of nearly all compounds of the title series, including the stereoisomers, are determined and coupling constants and chemical shifts are given.
ChemInform Abstract: Synthesis and Properties of Lead(II) Hexachlorotechnetate.
Authors: ZAITSEVA L. L. , KRUGLOV A. A. , SKOSYREV V. A.
Published: May 2016

Reaction between 2 PbCO3·Pb(OH)2 and HTcO4 affords Pb(TcO4)2.
ChemInform Abstract: Chirality of Intermediates in Thiamine Catalysis: Structure of (‐)‐2‐(1‐Hydroxyethyl)‐3,4‐dimethyl‐5‐(2‐hydroxyethyl)thiazolium Iodide, the Absolute Stereochemistry of the Enantiomers of 2‐(1‐Hydroxyethyl)thiamine, and Enzymic Reaction of the Diphosphates.
Authors: KLUGER R. , KARIMIAN K. , GISH G. , PANGBORN W. A. , DETITTA G. T.
Published: May 2016

From the X‐ray structure of the (R)‐(‐)‐thiazolium iodide (I) (space group P212121) the (R)‐configuration of the (+)‐hydroxyethylthiamine (IIa) and its (+)‐diphosphate (IIb) is concluded.
ChemInform Abstract: Supramolecular Catalysis in the Hydrolysis of ATP Facilitated by Macrocyclic Polyamines: Mechanistic Studies.
Authors: HOSSEINI M. W. , LEHN J.‐M. , MAGGIORA L. , MERTES K. B. , MERTES M. P.
Published: May 2016

The macrocyclic polyamine (Ia) catalyzes the hydrolysis of ATP at both pH 3 and 7 with calculated entropies of activation of ‐11 and ‐8.7 eu.
ChemInform Abstract: Hydration of Isopentenes in an Acetone Environment over Ion‐Exchange Resin: Thermodynamic and Kinetic Analysis.
Authors: DELION A. , TORCK B. , HELLIN M.
Published: May 2016

2‐Methyl‐2‐butanol is synthesized in the 60‐103 °C temp. range over sulfonic acid resin as the catalyst and in the presence of a sufficient quantity of acetone to obtain a single liquid phase.
ChemInform Abstract: (6 + 3) Cycloaddition to Nine‐Membered Ring Carbocycles.
Authors: TROST B. M. , SEOANE P. R.
Published: May 2016

(6 + 3) Cycloaddition of the tropones (I) with the trimethylenemethane precursor (II) yields the cycloadducts (III).
ChemInform Abstract: Intramolecular Azide‐Diene Cycloadditions. An Approach to Fused Bicyclic 3‐Pyrrolines Based on a One‐Pot Nitrene‐Diene Cycloaddition Equivalent.
Authors: PEARSON W. H. , CELEBUSKI J. E. , POON Y.‐F. , DIXON B. R. , GLANS J. H.
Published: May 2016

The azidodienes (IV), prepared by two methods shown in the reaction scheme, undergo intramolecular cycloaddition reactions on heating to produce the heterocycles (VII) ‐ (IX).
ChemInform Abstract: Thermal Reactivity of 4′‐Substituted‐ and 4′‐Substituted‐2‐phenyl‐benzenesulfenanilides.
Authors: BENATI L. , MONTEVECCHI P. C. , SPAGNOLO P.
Published: May 2016

The thermal decomposition of the benzenesulfenanilides (Ia)‐(Ic) in benzene, furan (IV) or benzene/cyclohexene (VI), and of the 2‐phenylbenzenesulfenanilides (Id)‐(If) in benzene at 85 or 150 °C is studied in detail (tables) and two distinct pathways relevant for the reactions are discussed.
ChemInform Abstract: Acylnitrilium Ion Cyclizations in Heterocycle Synthesis. A Convergent Method for the Preparation of 2‐Acylpyrrolines via the Intramolecular Acylation of Silyloxyalkenes with α‐Keto Imidoyl Chlorides.
Authors: WESTLING M. , LIVINGHOUSE T.
Published: May 2016

The isonitriles (I) (prepared by exposure of the corresponding enones to LiCH2NC followed by TBS‐Cl treatment) undergo acylation and AgBF4‐promoted ring closure to give the acylpyrrolines (III) (during work‐up, partial conversion of the Δ1‐pyrroline (IIIa) to its Δ2‐isomer (ratio 1:1.6) is observed).
ChemInform Abstract: Photolysis of 2,3‐Epoxy‐7,7‐diphenylbicyclo(3.2.0)heptan‐6‐ones and 2‐exo, 3‐exo‐Dihydroxy‐7,7‐diphenylbicyclo(3.2.0)heptan‐6‐one.
Authors: DAVIES H. G. , RAHMAN S. S. , ROBERTS S. M. , WAKEFIELD B. J. , WINDERS J. A.
Published: May 2016

Photolysis of the endo‐epoxide (I) in MeOH gives the products (II) and (III), derived from an oxacarbene intermediate, and (IV)‐(VI), derived from an initially formed alkenylketene.
ChemInform Abstract: Photooxidation of Tetraanionic Sensitizer Ions by Dihexadecyl Phosphate Vesicle‐Bound Viologens.
Authors: HURST J. K. , THOMPSON D. H. P. , CONNOLLY J. S.
Published: May 2016

Triplet state lifetimes of several photoredox‐active anions are shortened by adding bipyridinium ions (I) in the presence of dihexadecyl phosphate vesicles.
ChemInform Abstract: Direct Photoconversion of Pyruvate to Lactate in Aqueous TiO2 Dispersions.
Authors: CUENDET P. , GRAETZEL M. +
Published: May 2016

The photoconversion does not require additional catalysts and its efficiency depends on the pH and the electron donor present in solution.
ChemInform Abstract: Oxidation of 1,2,3‐Butatrienes: A Facile Formation of Methylenecyclopropanones and Their Subsequent Photodecarbonylation.
Authors: ANDO W. , HAYAKAWA H. , TOKITOH N.
Published: May 2016

Peracid oxidation of the butatrienes (I) yields the methylenecyclopropanones (II) which undergo photolytic decarbonylation, forming the allenes (III).
ChemInform Abstract: One‐Pot Synthesis of Hexatriynediamines.
Authors: FAUL D. , LEBER E. , HIMBERT G.
Published: May 2016

Successive treatment of the trichlorohexenediynylamines (I) with butyl lithium, cyanogen bromide (II), and the amines (III) yields the title compounds (IV).
ChemInform Abstract: Palladium‐Catalyzed Cross‐Coupling Reactions of B‐Alkyl‐9‐BBN or Trialkylboranes with Aryl and 1‐Alkenyl Halides.
Authors: MIYAURA N. , ISHIYAMA T. , ISHIKAWA M. , SUZUKI A.
Published: May 2016

The boranes (I) or (II) react with aryl iodides such as (III) in the presence of Pd‐catalysts, yielding the substitution products (V).
ChemInform Abstract: A Facile Synthesis of Perfluoro‐ and ω‐Chloroperfluoro‐1‐pentafluorophenyl‐1‐alkynes.
Authors: SHEN Y. , QIU W.
Published: May 2016

The title compounds (VI) are prepared by treating methylenetriphenylphosphorane (I) with hexafluorobenzene (II), followed by acylation and pyrolysis.
ChemInform Abstract: A Facile Synthesis of Pentafluorophenyl Olefins via an Arsonium Ylide.
Authors: SHEN Y. , QIU W.
Published: May 2016

The pentafluorophenylalkenes (VI) are prepared in a one‐pot synthesis from methyltriphenylarsonium iodide (I) via its methylenearsorane (II), followed by reaction with hexafluorobenzene (III) and the aldehydes (V).
ChemInform Abstract: Preparation of 3‐Methyl‐4‐nitrophenol.
Authors: ITO K. , KAMINAKA H.
Published: May 2016

m‐Cresol (I) is converted to the phosphate (II), which is nitrated with nitric acid to yield (III).
ChemInform Abstract: Palladium‐Catalyzed Synthesis of Allylic and Benzylic Sulfides from the Corresponding Dithiocarbonates.
Authors: LU X. , NI Z.
Published: May 2016

Palladium(0)‐phosphine complexes catalyze the decomposition of the dithiocarbonates (I) and (V), yielding the allylic (II) ‐ (IV) and the benzylic sulfides (VI).
ChemInform Abstract: Organic Syntheses without Solvent: Preparation of Sulfones and Dithioacetals.
Authors: BRAM G. , LOUPY A. , ROUX‐SCHMITT M. C. , SANSOULET J. , STRZALKO T. , SEYDEN‐PENNE J.
Published: May 2016

The sulfones (III) are obtained from the sulfinates (I) by alkylation under solid‐liquid phase‐transfer catalysis.
ChemInform Abstract: Cross‐Coupling Reactions for the Preparation of 2‐Arylfurans, 2‐Benzylfuran and 2‐Cinnamylfuran.
Authors: PELTER A. , ROWLANDS M. , CLEMENTS G.
Published: May 2016

The 2‐substituted furans (III), (VI), and (VIII) are prepared by the Pd(0)‐catalyzed coupling reaction of 2‐furylzinc chloride with the aryl bromides (II) and (VII) or of 2‐lithiofuran (IV) with benzyl and cinnamyl bromide (V).
ChemInform Abstract: (4 + 2) Cycloadditions with 1,1‐Dithio Oxalic Ester Amides.
Authors: THIEL W. , MAYER R.
Published: May 2016

The title compounds (I) react with the butadiene (II) or the pentadiene (IV) to afford the adducts (III) or (V).
ChemInform Abstract: Hydrolysis Products of Flavins (Isoalloxazines).
Authors: HARAYAMA T. , TEZUKA Y. , TAGA T. , YONEDA F.
Published: May 2016

Hydrolysis of the flavins (I) with Triton B yields the spirohydantoins (II) and the imidazoquinoxalines (III) as main products.
ChemInform Abstract: An Unusual Ring‐Opening Reaction of 2‐Methylthio‐3,1‐perhydrobenzoxazines. A Comparative Study of the 3,1‐ and 1,3‐Isomers.
Authors: FERENC F. , GYOERGY C. + , SANDOR S. , GABOR B.
Published: May 2016

S‐Methylation of (I) with methyl iodide leads to ring fission, catalyzed by HI, yielding the iodomethylthiolcarbamates (II).
ChemInform Abstract: Ring‐Chain Tautomerism of ortho‐Amino‐Substituted Aromatic Carboxylic Acid Hydrazones. Part 1. Formation of 1,2,3,4‐Tetrahydro‐5H‐1,3,4‐benzotriazepin‐5‐ones and 5,6,7,8‐Tetrahydro‐4H‐pyrazolo(3,4‐e)(1,2,4)triazepin‐4‐ones.
Authors: GAL M. , TIHANYI E. , DVORTSAK P.
Published: May 2016

Reaction of the ortho‐amino hydrazide (I) with the aldehydes or ketones (II) gives either the hydrazones (III), the triazepinones (IV) or a ring‐chain equilibrium mixture of (III) and (IV).
ChemInform Abstract: Efficient Synthesis of 6‐Trimethylsiloxy‐ and 6‐(Trimethylsilyl)methyl‐ 3‐phenyl‐5,6‐dihydro‐4H‐1,2‐oxazines by Cycloaddition of α‐Nitrosostyrene to Silyl Enol Ethers and Allyltrimethylsilane.
Authors: HIPPELI C. , REISSIG H. U.
Published: May 2016

Cycloaddition reaction of α‐nitrosostyrene (II), generated from α‐chloroacetophenone oxime (I) and bases, with the silyl enol ethers (III) or the allyltrimethylsilane (V) produces the dihydro‐1,2‐oxazine derivatives (IV) and (VI) respectively.
ChemInform Abstract: The Persilylcyclotrisilane ((Et3Si)2Si)3.
Authors: MATSUMOTO H. , SAKAMOTO A. , NAGAI Y.
Published: May 2016

Sodium reduction of the dibromohexaethyltrisilane (I) yields the hexakis(triethylsilyl)cyclotrisilane (II) which decomposes on photolysis to form the unstable disilene (III).
ChemInform Abstract: Intramolecular Cyclopropanation of an Aromatic Nucleus by an Alkylidenecarbene: A Novel Access to Heptafulvenes.
Authors: BRUECKMANN R. + , MAAS G.
Published: May 2016

Cyclization of the Si‐substituted α‐diazoketone (I) gives the electron‐ rich heptafulvene (II) which is extremely sensitive to oxidation by air and to moisture.
ChemInform Abstract: Synthesis and NMR‐Spectroscopic Characterization of Some Di‐n‐alkyl and n‐Alkylaryl Chlorophosphanes.
Authors: WOLFSBERGER W.
Published: May 2016

The tetrasubstituted diphosphanes (I) are cleaved with chlorodiphenyl or dichlorophenylphosphane (II) to yield the chlorophosphanes (III).