Copper(I)-catalyzed benzylic C(sp3)–H geminal difunctionalization: Successive oxidative intramolecular amidation and hydroxylation
作者:Zhiguo Zhang、Songnan Wang、Chunfang Hu、Nana Ma、Guisheng Zhang、Qingfeng Liu
DOI:10.1016/j.tet.2018.11.023
日期:2018.12
A selective copper(I)-catalyzed benzylic C(sp3)–H geminal difunctionalization reaction of a benzylic-type sp3 carbon was developed. This novel strategy allowed simultaneous introduction of amide and hydroxyl group in a highly selective and efficient way via successive oxidative intramolecular amidation and hydroxylation. This method was also applied to the synthesis of 3-hydroxy-2,3-dihydro-1H-pyrrolo[3
开发了选择性铜(I)催化的苄型sp 3碳的苄基C(sp 3)–H双子双官能化反应。这种新颖的策略允许通过连续的氧化性分子内酰胺化和羟基化以高度选择性和有效的方式同时引入酰胺和羟基。该方法还适用于从容易获得的3-甲基-N-取代的喹喔啉-2-羧酰胺以中度到良好的程度合成3-羟基-2,3-二氢-1 H-吡咯并[3,4- b ]喹喔啉酮。产量。吡咯并[5,4- b]的五元环状半胱氨酸部分]喹喔啉酮可以用作随后转化为其他有用的官能团的中间体。