SnCl4–Zn: a novel reductive system for deoxygenative coupling of aliphatic, aromatic, chalcone epoxide, and indanone carbonyl compounds to olefins
作者:Gulab Khushalrao Pathe、Naseem Ahmed
DOI:10.1016/j.tetlet.2015.01.194
日期:2015.3
SnCl4–Zn complex provided a novel reductive system in the deoxygenative cross-coupling of aliphatic, aromatic, chalcone epoxide and indanone carbonyl compounds to olefins in high yield (55–86%) at reflux temperature in THF. The advantage of this reagent is inexpensive, short reaction time, and high yield compared to the reagents used in the McMurry cross-coupling reaction.
Diazomethane Radical Cations as a Dipolarophile in the Dimeric Olefin Formation from Diazo-compounds
作者:Katsuya Ishiguro、Yasuhiko Sawaki、Hiizu Iwamura
DOI:10.1246/cl.1987.1853
日期:1987.9.5
A novel cycloaddition mechanism involving diazomethane radical cations is proposed for the dimeric olefin formation by the one-electron oxidation of diazo-compounds. The preference of cis-stilbene formation from phenyldiazomethane is understood by a secondary orbital interaction of phenyl groups on the cycloaddition step.
Regioselective Metallation of Propylbenzene with Superbase: a Convenient Route to Stilbene Derivatives†
作者:Angelika Thurner、Be´la A´gai、Ferenc Faigl
DOI:10.1039/a706203f
日期:——
The benzylic metallation of propylbenzene has been elaborated with LIC–KOR superbase; the method has been applied in a new synthesis of stilbene derivatives.
丙苯的苄基金属化已经用 LIC-KOR 超强碱进行了阐述;该方法已应用于二苯乙烯衍生物的新合成中。
The reaction of benzotrihalides and benzal halides with magnesium. Synthetic and mechanistic studies
作者:E.C. Ashby、Dheya M. Al-Fekri
DOI:10.1016/0022-328x(90)85094-f
日期:1990.7
= Cl, Br, and F were allowed to react with magnesium in THF at room temperature. When the halide was chloride or bromide, the trihalide gave diphenylacetylene in high yield in addition to several minor products which were identified. No reaction was observed when the halide was fluoride. When the corresponding dichloride was allowed to react with magnesium in THF, stilbene was formed as the major product
X = Cl,Br和F的苯并三卤化物(PhCX 3)在室温下与镁在THF中反应。当卤化物是氯化物或溴化物时,三卤化物除了鉴定出几种次要产物外,还以高收率得到了二苯乙炔。当卤化物是氟化物时,没有观察到反应。当使相应的二氯化物与镁在THF中反应时,形成为主要产物。讨论了这些反应的可能机理。
Discovery and characterization of aryl isonitriles as a new class of compounds versus methicillin- and vancomycin-resistant Staphylococcus aureus
作者:Dexter C. Davis、Haroon Mohammad、Kwaku Kyei-Baffour、Waleed Younis、Cassidy Noel Creemer、Mohamed N. Seleem、Mingji Dai
DOI:10.1016/j.ejmech.2015.06.031
日期:2015.8
Methicillin- and vancomycin-resistant Staphylococcus aureus (MRSA and VRSA) have emerged as a global health concern. A new class of compounds featuring an aryl isonitrile moiety has been discovered that exhibits potent inhibitory activity against several clinically-relevant MRSA and VRSA isolates. Structure -activity relationship studies have been conducted to identify the aryl isonitrile group as the key functional group responsible for the observed antibacterial activity. The most potent antibacterial aryl isonitrile analogs (MIC 2 mu M) did not show any toxicity against mammalian cells up to a concentration of 64 mu M. (C) 2015 Elsevier Masson SAS. All rights reserved.