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 reductivecleavage of the CCbond in the presence of a cationic RhIII catalyst and H2 (see scheme; DG=directinggroup). 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.