Photo-induced reductive cross-coupling of aldehydes, ketones and imines with electron-deficient arenes to construct aryl substituted alcohols and amines
作者:Zan Liu、Xiaolei Nan、Tao Lei、Chao Zhou、Yang Wang、Wenqiang Liu、Bin Chen、Chenho Tung、Lizhu Wu
DOI:10.1016/s1872-2067(17)62896-1
日期:2018.3
Abstract Umpolung reactions of C=X bonds (X = O, N) are valuable ways of constructing new C–C bonds, which are sometimes difficult to be constructed using traditional synthetic pathways. Classical polarity inversion of C=X bonds (X = O, N) usually requires air or moisture-sensitive and strong reducing agents, which limit the feasibility of substrate scope. Herein we describe a photo-induced reductive
摘要 C=X 键 (X = O, N) 的 Umpolung 反应是构建新 C-C 键的有价值的方法,而使用传统的合成途径有时难以构建。C=X键(X=O,N)的经典极性反转通常需要对空气或湿气敏感的强还原剂,这限制了底物范围的可行性。在此,我们描述了醛、酮和亚胺与缺电子芳烃(芳族腈)在可见光下使用 fac-Ir(ppy)3 作为光催化剂和二异丙基乙胺 (DIPEA) 作为末端还原剂的光诱导还原交叉偶联反应辐照。温和的条件和高产率意味着这种新的极性反转策略可用于芳基取代的醇和胺。