Conformational control of propeller-like chirality in Zn(II) complexes: Tightly balanced steric bias
作者:Yu-Hung Chiu、Osvaldo dos Santos、James W Canary
DOI:10.1016/s0040-4020(99)00713-9
日期:1999.10
The conformational behavior of a series of chiral tripodal ligand-Zn(II) complexes was examined. The ligands adopt propeller-like conformations upon complexation of trigonal bipyramidal metal ions such as Zn(II), with the chirality of the propeller determined by the absolute configuration of a single chiral center in one of the tripod arms. Surprisingly, increasing the size of the substituent in the
An Efficient Chemoenzymatic Route to Biologically Active Pyridinic Amines
作者:Ramón Liz、Martín Mejuto、Francisca Rebolledo
DOI:10.1002/ejoc.202300808
日期:2023.12
have been prepared by means of a chemoenzymatic route starting from 1,2-disubstituted ethanones. Two features of the strategy need to be he highlighted: the highly enantioselective ketoreductase (KRED)-catalyzed reduction of the starting ketones, and the efficient transformation of the resulting optically active alcohols into the target primary amines.