LIU, HSING-JANG;ULIBARRI, GERARDO;NELSON, LLOYD A. K., J. CHEM. SOC. CHEM. COMMUN.,(1990) N0, C. 1419-1421
作者:LIU, HSING-JANG、ULIBARRI, GERARDO、NELSON, LLOYD A. K.
DOI:——
日期:——
Asymmetric Approach toward Chiral Cyclohex-2-enones from Anisoles via an Enantioselective Isomerization by a New Chiral Diamine Catalyst
作者:Jung Hwa Lee、Li Deng
DOI:10.1021/ja308623n
日期:2012.11.7
A 3-step asymmetricapproach toward the optically active chiral cyclohex-2-enones from anisoles has been developed. The crucial asymmetric induction step is an unprecedented catalytic enantioselective isomerization of β,γ-unsaturated cyclohex-3-en-1-ones to the corresponding α,β-unsaturated chiral enones. This new asymmetric transformation was realized by cooperative iminium-base catalysis with an