Cobalt-Catalyzed Alkylation of Nitriles with Alcohols
作者:Arpita Singh、Michael Findlater
DOI:10.1021/acs.organomet.1c00690
日期:2022.11.28
Herein, we report an operationally convenient, cobalt-catalyzed alkylation of aryl nitriles employing primary and secondary alcohols (>30 examples, up to 86% yield). The use of readily available cobalt precursors and the widely employed BIAN (BIAN = bis(arylimino)acenaphthene) ligand affords an efficient catalytic reaction that is environmentally benign, leading to the formation of water as the only
Urea Derivatives Methods For Their Manufacture And Uses Thereof
申请人:DePrez Pierre
公开号:US20100240889A1
公开(公告)日:2010-09-23
The present invention provides compounds of formula (I): in which R
1
, R′
1
, R
2
, R′
2
, R
3
, Y and G have the meanings given in the description, to a process for their preparation, their application by way of medicaments, and to pharmaceutical compositions containing them.
UREA DERIVATIVES, METHODS FOR THEIR MANUFACTURE, AND USES THEREFOR
申请人:DEPREZ Pierre
公开号:US20120283255A1
公开(公告)日:2012-11-08
The present invention provides compounds of formula (I):
in which R
1
, R′
1
, R
2
, R′
2
, R
3
, and Y have the meanings given in the description, to a process for their preparation, their application by way of medicaments, and to pharmaceutical compositions containing them.
Chemoselective α-Alkylation and α-Olefination of Arylacetonitriles with Alcohols <i>via</i> Iron-Catalyzed Borrowing Hydrogen and Dehydrogenative Coupling
borrowing hydrogen or α-olefination by dehydrogenativecoupling methods. Designing and developing high-performance earth-abundant catalysts that can procure different products from the same starting materials remain a great challenge. Herein, we report an iron(0) catalyst system that achieves chemoselectivity between borrowing hydrogen and dehydrogenativecoupling protocols by simply changing the base. A
α-烷基腈和α-烯烃腈在有机合成和药物化学中非常重要。然而,不同类型的催化剂用于通过借氢实现腈的α-烷基化或通过脱氢偶联方法实现α-烯烃化。设计和开发高性能的地球丰富的催化剂,可以从相同的起始材料中获得不同的产品仍然是一个巨大的挑战。在此,我们报告了一种铁 (0) 催化剂系统,该系统通过简单地改变碱基来实现借氢和脱氢偶联方案之间的化学选择性。广泛的腈类和醇类,包括苄醇、直链脂肪醇、脂环醇、杂环醇和烯丙醇,被选择性且有效地转化为相应的产物。机理研究表明反应机理通过脱氢途径进行。这种铁催化方案对环境无害且原子效率高,可释放 H2和 H 2 O 作为绿色副产物。
Urea derivatives, methods for their manufacture, and uses thereof
申请人:Galapagos SAS
公开号:EP2354137A1
公开(公告)日:2011-08-10
The present invention provides compounds of formula (I):
in which R1, R'1, R2, R'2, R3, Y and G have the meanings given in the description, to a process for their preparation, their application by way of medicaments, and to pharmaceutical compositions containing them.
本发明提供了式 (I) 的化合物:
中 R1、R'1、R2、R'2、R3、Y 和 G 的含义,以及它们的制备工艺、它们在药物中的应用和含有它们的药物组合物。