Copper-catalyzed enantioselective allylic oxidation of acyclic olefins
作者:Bo Zhang、Shou-Fei Zhu、Qi-Lin Zhou
DOI:10.1016/j.tetlet.2013.03.046
日期:2013.5
copper-catalyzed asymmetricallylicoxidation of acyclic olefins has been developed. By using the complexes of copper and chiral spiro bisoxazoline ligands as catalysts, the oxidation of various acyclic olefins was accomplished with excellent regioselectivity (>20:1 in most cases) and up to 67% ee under mild reaction conditions, which represents one of the best results for the enantioselective allylic oxidation
Copper-catalyzed diesterification of 1,3-diene for the synthesis of allylic diester compounds
作者:Bo Qian、Haigen Xiong、Nengbo Zhu、Changqing Ye、Wujun Jian、Hongli Bao
DOI:10.1016/j.tetlet.2016.06.087
日期:2016.7
A novel and atom economical copper-catalyzed diesterification of 1,3-dienes has been developed; the available allylic diester derivatives, which are the important intermediates for the synthesis of natural products, were attained with moderate to good yields. Preliminary mechanistic study suggests that allylic radical might be involved in this transformation.