Cross-Dehydrogenating Coupling of Aldehydes with Amines/R-OTBS Ethers by Visible-Light Photoredox Catalysis: Synthesis of Amides, Esters, and Ureas
作者:Ganesh Pandey、Suvajit Koley、Ranadeep Talukdar、Pramod Kumar Sahani
DOI:10.1021/acs.orglett.8b02537
日期:2018.9.21
A straightforward synthesis of amides, ureas, and esters is reported by visible-light cross-dehydrogenating coupling (CDC) of aldehydes (or amine carbaldehydes) and amines/R-OTBS ethers by photoredox catalysis. The reaction is found to be general and high yielding. A plausible mechanistic pathway has been proposed for these transformations and is supported by appropriate controlled experiments.
通过光氧化还原催化醛(或胺甲醛)和胺/ R-OTBS醚的可见光交叉脱氢偶联(CDC),报道了酰胺,脲和酯的直接合成。发现该反应是一般的且高收率的。已经为这些转化提出了一种可行的机理途径,并得到了适当的受控实验的支持。