Comparison of syn dehydrohalogenations from -1-bromo-2-chlorocycloalkanes promoted by complex base and by potassium -butoxide
作者:Alan P. Croft、Richard A. Bartsch
DOI:10.1016/s0040-4039(00)88009-0
日期:1983.1
Compared with t-BuOK-t-BuOH, syn eliminations from trans-1-bromo-2-chlorocycloalkanes (C4-C8) induced by NaNH2-NaO-t-Bu in THF are rapid, exhibit greater propensity for dehydrechlorination and show little sensitivity to ring size of the dihalocycloalkane.
A Highly Active and General Catalyst for the Stille Coupling Reaction of Unreactive Aryl, Heteroaryl, and Vinyl Chlorides under Mild Conditions
作者:Dong-Hwan Lee、Yingjie Qian、Ji-Hoon Park、Jong-Suk Lee、Sang-Eun Shim、Myung-Jong Jin
DOI:10.1002/adsc.201300075
日期:2013.6.17
efficient and general catalyst in the Stillecouplingreaction of various aryl and heteroaryl chlorides with organostannanes. The results show that this catalytic system allows for the use of less reactive substrates such as deactivated or sterically hindered arylchlorides. A catalyst loading of 0.5 mol% was sufficient to achieve excellent performance under relatively mild reaction conditions. Furthermore
SYNTHESIS OF β, γ-UNSATURATE CARBOXYLIC ACID DERIVATIVES BY THE NOVEL Ni (CO)<sub>4</sub>-INDUCED RING-OPENING CARBONYLATION REACTION OF 1,1-DIBROMO-2-CHLOROCYCLOPROPANES
作者:Toshikazu Hirao、Shinichiro Nagata、Toshio Agawa
DOI:10.1246/cl.1985.1625
日期:1985.11.5
1,1-Dibromo-2-chlorocyclopropanes underwent the Ni (CO)4-induced ring-opening carbonylation reaction with alcohol or amine giving the β, γ,-unsaturated carboxylic acid and dicarboxylic acid derivatives. Use of N,N-dimethyltrimethylsilylamine as an initial nucleophile in the presence of benzaldehyde led to a dienecarboxamide presumably via codensation of the nickel enolate intermediate.
Photochemistry of alkyl halides. 10. Vinyl halides and vinylidene dihalides
作者:Paul J. Kropp、Steven A. McNeely、Robert Drummond Davis
DOI:10.1021/ja00361a028
日期:1983.11
Proprietes photochimiques du dimethyl-2,4 iodo-3 pentene-2, des iodo-1 cycloalcenes, des (halogenomethylene) cycloalcanes et des (dihalogenomethylene) cyclohexanes. Formation de produits radicalaires et ioniques. Mecanismes. Donnees spectrales UV, IR, RMN 1 H
Proprietes photochimiques du dimethyl-2,4 iodo-3 pentene-2, des iodo-1 cycloalcenes, des (halogenomethylene) cycloalcanes et des (dihalogenomethylene) cyclohexes。形成 de produits 激进分子和 ioniques。机制。Donnees 光谱 UV、IR、RMN 1 H
Ethoxycarbonylnitrene addition to vinyl chlorides. Synthesis and thermal rearrangement of α-chloroaziridines
作者:Lucio Pellacani、Franca Persia、Paolo A. Tardella
DOI:10.1016/s0040-4039(00)71167-1
日期:1980.1
The addition of ethoxycarbonylnitrene to vinyl chlorides gives N-ethoxycarbonyl-α-chloroaziridines which undergo an easy rearrangement mainly or exclusively to N-ethoxycarbonyl-2-chloro-2-alkenylamines.