Enantioselective Synthesis of Chiral Isotopomers of 1-Alkanols by a ZACA-Cu-Catalyzed Cross-Coupling Protocol
作者:Shiqing Xu、Akimichi Oda、Ei-ichi Negishi
DOI:10.1002/chem.201405053
日期:2014.12.1
chiral compounds have a non‐measurable specificrotation, owing to very small differences between the isotopomeric groups, and exhibit cryptochirality. This particular class of compounds is difficult to synthesize and characterize. Herein, we present a catalytic and highly enantioselective conversion of terminal alkenes to various β and more remote chiral isotopomers of 1‐alkanols, with ≥99 % enantiomeric
Highly enantioselective synthesis of γ-, δ-, and ε-chiral 1-alkanols via Zr-catalyzed asymmetric carboalumination of alkenes (ZACA)–Cu- or Pd-catalyzed cross-coupling
asymmetric synthesis, the preparation of enantiomerically pure (>/=99% ee) compounds remains a challenge in modern organic chemistry. We report here a strategy for a highly enantioselective (>/=99% ee) and catalytic synthesis of various gamma- and more-remotely chiral alcohols from terminal alkenesvia Zr-catalyzed asymmetric carboalumination of alkenes (ZACA reaction)-Cu- or Pd-catalyzed cross-coupling