Catalytic Asymmetric Addition of Alkyl Enol Ethers to 1,2-Dicarbonyl Compounds: Highly Enantioselective Synthesis of Substituted 3-Alkyl-3-Hydroxyoxindoles
作者:Ke Zheng、Chengkai Yin、Xiaohua Liu、Lili Lin、Xiaoming Feng
DOI:10.1002/anie.201007145
日期:2011.3.7
A familiar ring: An efficient catalytic asymmetric hetero‐ene reaction of 1,2‐dicarbonyl compounds (including isatins, α‐ketoesters, and glyoxal derivatives) is described. The catalyst system derived from 1 can be used for a broad substrate scope and the corresponding products were obtained in good yield and excellent enantioselectivity. M.S.=molecular sieves.
熟悉的环:描述了1,2-二羰基化合物(包括靛红,α-酮酸酯和乙二醛衍生物)的高效催化不对称杂烯反应。衍生自1的催化剂体系可用于广泛的底物范围,并以良好的收率和优异的对映选择性获得相应的产物。MS =分子筛。