Enantioselective Synthesis of α-Alkyl-β,γ-unsaturated Esters through Efficient Cu-Catalyzed Allylic Alkylations
作者:Kerry E. Murphy、Amir H. Hoveyda
DOI:10.1021/ja0300618
日期:2003.4.1
A method for enantioselective Cu-catalyzed allylic substitution between various alkylzincs and alpha,beta-unsaturated carboxylic esters that bear a gamma-phosphate is reported. These transformations afford alpha-alkyl-beta,gamma-unsaturated carbonyls with regioselectivities of 7:1 to >20:1 (S(N)2':S(N)2) and in 87-97% ee. The utility of the method is illustrated by a convergent total synthesis of topoisomerse II inhibitor (R)-elenic acid.
CRILLEY, MARTINE M. L.;GOLDING, BERNARD T.;PIERPOINT, COLIN, J. CHEM. SOC. PERKIN TRANS. PT I,(1988) N 8, C. 2061-2067
作者:CRILLEY, MARTINE M. L.、GOLDING, BERNARD T.、PIERPOINT, COLIN
DOI:——
日期:——
Crilley, Martine M. L.; Golding, Bernard T.; Pierpoint, Colin, Journal of the Chemical Society. Perkin transactions I, 1988, p. 2061 - 2068
作者:Crilley, Martine M. L.、Golding, Bernard T.、Pierpoint, Colin