α-Alkylation of Ketones with Alkenes Enabled by Photoinduced Activation of Silyl Enol Ethers in the Presence of a Small Amount of Water
作者:Tsubasa Hirata、Yoshihiro Ogasawara、Yasuhiro Yamashita、Shu̅ Kobayashi
DOI:10.1021/acs.orglett.1c01824
日期:2021.8.6
Under blue-light irradiation conditions with a photocatalyst [1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene], silyl enol ethers reacted with alkenes in the presence of a small amount of water to afford the α-alkylation products in good to high yields. A thiol cocatalyst was found to expand the substrate scope of the reaction.
在光催化剂[1,2,3,5-四(咔唑-9-基)-4,6-二氰基苯]的蓝光照射条件下,甲硅烷基烯醇醚在少量水存在下与烯烃反应生成以良好到高产率提供α-烷基化产物。发现硫醇助催化剂扩大了反应的底物范围。