[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.
Rh-Catalyzed Anti-Markovnikov Hydrocyanation of Terminal Alkynes
作者:Fei Ye、Junting Chen、Tobias Ritter
DOI:10.1021/jacs.7b03749
日期:2017.5.31
We report the first highly stereo- and regioselective hydrocyanation of terminal alkynes to furnish E-configured alkenyl nitriles. Acrylonitriles can be accessed on gram scale with broad substrate scope and functional group tolerance. The hydrocyanation reaction employs acetone cyanohydrin as a practical alternative to HCN gas.
我们报告了第一个高度立体和区域选择性的末端炔烃氢氰化反应,以提供 E 构型的烯基腈。丙烯腈可以在克级获得,具有广泛的底物范围和官能团耐受性。氢氰化反应使用丙酮氰醇作为 HCN 气体的实用替代品。
A Three-Step Synthesis of 1,7-Diazaperylene and Derivatives
Abstract 1,7-Diazaperylene and various derivatives were synthesised in an upscaleable route from 1,5-diaminoanthraquinone and its Meerwein reaction with acrylonitrile and subsequent cyclisation with ammonia. The application of tert-butyl alcohol as the solvent led to a significant improvement in the Meerwein reaction. Publication History Received: 30 May 2020 Accepted after revision: 31 August 2020
Manganese(I)-Catalyzed H–P Bond Activation via Metal–Ligand Cooperation
作者:Juana M. Pérez、Roxana Postolache、Marta Castiñeira Reis、Esther G. Sinnema、Denisa Vargová、Folkert de Vries、Edwin Otten、Luo Ge、Syuzanna R. Harutyunyan
DOI:10.1021/jacs.1c10756
日期:2021.12.8
Mn(I) complexes are capable of H–P bond activation. This activation mode enables a general method for the hydrophosphination of internal and terminal α,β-unsaturatednitriles. Metal−ligand cooperation, a strategy previously not considered for catalytic H–P bond activation, is at the base of the mechanistic action of the Mn(I)-based catalyst. Our computational studies support a stepwise mechanism for the
A Simple and Regioselective Conversion of Terminal Acetylene into 2-Substituted Acrylonitrile
作者:Fen-Tair Luo、Sheng-Li Ko、Dean-Yang Chao
DOI:10.1016/s0040-4039(97)10109-5
日期:1997.11
Treatment of terminal acetylene with in situ generated hydrogen iodide and followed by the reaction with cuprous cyanide provided a simple and regioselective transformation of acetylene into 2-substituted acrylonitrile in fair to good yields.