Organo-photoredox-Catalyzed Atom-Transfer Radical Substitution of Alkenes with α-Carbonyl Alkyl Halides
作者:Goki Hirata、Taisei Shimada、Takashi Nishikata
DOI:10.1021/acs.orglett.0c03359
日期:2020.11.20
(ATRS) and carboesterification reaction of alkenes with alkyl halides has been developed using PTH as the organo-photoredox catalyst. Two types of products were obtained, depending on the additive and solvent used during the reaction. Primary, secondary, and tertiary alkyl halides reacted to give the ATRS products. This protocol has several advantages: it requires mild reaction conditions and a low catalyst
Copper-Catalyzed Bifunctionalization/Annulation of Unactivated Alkene with Alkyl Bromides
作者:Cancan Feng、Yangjie Wu
DOI:10.1021/acs.joc.3c01746
日期:2023.11.3
from unactivated alkenes and alkylbromides via a Cu-catalyzed inter-/intramolecular carboamidation. This reaction proceeded smoothly under mild reaction conditions and exhibited a broad substrate scope and various functional groups. This protocol is not only compatible with 1, 2, and 3° alkylbromides but also suitable for α-bromo nitrile as well as various benzyl bromides. The mechanism exploration
β-内酰胺是生物活性化合物和药物中普遍存在的支架。在此,我们公开了一种从未活化的烯烃和烷基溴出发,通过 Cu 催化的分子间/分子内碳酰胺化反应构建 β-内酰胺的简化方法。该反应在温和的反应条件下顺利进行,并表现出广泛的底物范围和丰富的官能团。该方案不仅与 1、2 和 3° 烷基溴兼容,而且还适用于 α-溴腈以及各种苄基溴。机理探索表明涉及顺序自由基加成/还原消除。