Enhancement of stereoselectivity in catalytic cyclopropanation reactions
作者:Michael P. Doyle、Kuo-Liang Loh、Keith M. DeVries、Mitchell S. Chinn
DOI:10.1016/s0040-4039(01)81001-7
日期:1987.1
Significant enhancement of trans(anti) stereoselectivity is achieved in rhodium(II) acetamide catalyzed cyclopropanationreactions of 2,3,4-trimethyl-3-pentyl diazoacetate (ODA) and diazoacetamides.
Stereoselective Functionalization of Racemic Cyclopropylzinc Reagents via Enantiodivergent Relay Coupling
作者:Lun An、Fei-Fei Tong、Shu Zhang、Xingang Zhang
DOI:10.1021/jacs.0c04462
日期:2020.7.8
cyclopropylzinc reagents. This strategy relies on a one-pot, two-step enantiodivergent relay coupling (EDRC) process of the racemic cis-cyclopropylzinc reagents with two different electrophiles, which involves kinetic resolution of racemic cis-cyclopropylzinc reagents through a nickel-catalyzed enantioselective coupling with alkyl electrophiles, followed by a stereospecific relay coupling of the remaining