Reductive Cleavage of the C sp 2C sp 3 Bond of Secondary Benzyl Alcohols: Rhodium Catalysis Directed by N-Containing Groups
作者:Kang Chen、Hu Li、Zhi-Quan Lei、Yang Li、Wen-He Ye、Li-Sheng Zhang、Jian Sun、Zhang-Jie Shi
DOI:10.1002/anie.201204338
日期:2012.9.24
1,1‐Biarylmethanol substrates undergo reductive cleavage of the CC bond in the presence of a cationic RhIII catalyst and H2 (see scheme; DG=directing group). Various functional groups are tolerated in the reaction system. Preliminary studies indicate that a five‐membered rhodacycle intermediate, which then converts into a RhIII hydride species for the reduction, is involved in the catalytic cycle.
切割松动:1,1- Biarylmethanol基板经历作为C还原裂解 C键在阳离子铑的存在III催化剂和H 2(参见方案; DG =引导组)。在反应系统中可以容忍各种官能团。初步研究表明,五元的rhodocycle中间体参与催化循环,然后将其转化为Rh III氢化物进行还原。