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相转移催化剂催化亚胺与α,β不饱和酮的不对称Michael加成反应 被引量:2

PTC catalyzed Asymmetric Michael Additions of α,β-Unsaturated Ketones
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摘要 金鸡纳碱衍生的季铵盐催化二苯亚甲基甘氨酸叔丁酯与α,β不饱和酮的不对称Michael加成反应,常温条件下取得99%的产率,达到57%的对映选择性以及高于20∶1的区域选择性.合成了7个未见文献报道的取代的甘氨酸衍生物,其结构得到1H NMR确证. The asymmetric Michael addition reaction of N-(benzophenone) glycine tert-butyl ester with α,β-Unsaturated Ketones catalyticed by cinchona-derived quaternary ammonium salts afforded 99% yield and 57% enantioselectivity with up to 20:1 regioselectivity in room temperature.we synthesized seven substituted glycine derivatives which have not been reported.All the structures have been characterized by 1H NMR and some by 13C NMR.
出处 《西华师范大学学报(自然科学版)》 2012年第1期40-44,共5页 Journal of China West Normal University(Natural Sciences)
基金 国家自然科学基金(20772092)资助项目
关键词 相转移催化剂 对映选择性 不对称合成Michael加成反应 Phase Transfer Catalysis enantioselectivity asymmetric Michael additions
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参考文献7

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