Dynamic Kinetic Resolution of Aldehydes by Hydroacylation
作者:Zhiwei Chen、Yusuke Aota、Hillary M. H. Nguyen、Vy M. Dong
DOI:10.1002/anie.201900545
日期:2019.3.26
We report a dynamickineticresolution (DKR) of chiral 4‐pentenals by olefin hydroacylation. A primary amine racemizes the aldehyde substrate via enamine formation and hydrolysis. Then, a cationic rhodium catalyst promotes hydroacylation to generate α,γ‐disubstituted cyclopentanones with high enantio‐ and diastereoselectivities.
Highly diastereoselective, enantioselective cyclization of symmetrical 3,4-disubstituted 4-pentenal using chiral rhodium(I)-complex
作者:Xiao-Ming Wu、Kazuhisa Funakoshi、Kiyoshi Sakai
DOI:10.1016/s0040-4039(00)73816-0
日期:1993.9
Concurrent introduction of two chiral centers at 3,4-positions of cyclopentanone from symmetrical 1 was achieved in diastereoselective and enantioselective fashion by combination of BINAP and cationic Rh(I)(or neutral).