Direct conversion of α,β-unsaturated nitriles into cyanohydrins using Mn(dpm)3 catalyst, dioxygen and phenylsilane
摘要:
Treatment of alpha,beta -unsaturated nitriles with Mn(dpm)(3) (3 mol%), PhSiH3 in isopropyl alcohol in the presence of oxygen resulted in reduction and alpha- and beta -hydroxylation. (C) 2001 Elsevier Science Ltd. All rights reserved.
Ruthenium-Catalyzed Oxidative Cross-Coupling Reaction of Activated Olefins with Vinyl Boronates for the Synthesis of (<i>E</i>,<i>E</i>)-1,3-Dienes
作者:Dattatraya H. Dethe、Nagabhushana C. Beeralingappa、Amar Uike
DOI:10.1021/acs.joc.0c02823
日期:2021.2.19
An oxidativecross-coupling reaction between activated olefins and vinyl boronate derivatives has been developed for the highly stereoselective construction of synthetically useful (E,E)-1,3-dienes. The highlight of this reaction is that exclusive stereoselectivity (only E,E-isomer) was achieved from a base-free, ligand-free, and mild catalytic condition with a less expensive [RuCl2(p-cymene)]2 catalyst
[EN] PROCESS FOR HYDROCYANATION OF TERMINAL ALKYNES<br/>[FR] PROCÉDÉ D'HYDROCYANATION D'ALCYNES TERMINAUX
申请人:STUDIENGESELLSCHAFT KOHLE MBH
公开号:WO2018210631A1
公开(公告)日:2018-11-22
The present invention refers to a process for a Rh-catalyzed Anti-Markovnikov hydrocyanation of terminal alkynes which process discloses, for the first time, the highly stereo- and regio-selective hydrocyanation of terminal alkynes to furnish E- configured alkenyl nitriles and the catalyst used in the present process.
The present invention refers to a process for a Rh-catalyzed Anti-Markovnikov hydrocyanation of terminal alkynes which process discloses, for the first time, the highly stereo- and regio-selective hydrocyanation of terminal alkynes to furnish E-configured alkenyl nitriles and the catalyst used in the present process.
本发明涉及一种在 Rh 催化下对末端炔烃进行反马尔科夫尼科夫加氢氰化反应的工艺,该工艺首次公开了对末端炔烃进行高度立体和区域选择性加氢氰化反应以生成 E 构型烯基腈化物的方法以及本工艺中使用的催化剂。
Synthesis of isomerically pure .alpha.,.beta.-unsaturated nitriles via hydroalumination of alkynes