Asymmetric Multicomponent Reactions for Efficient Construction of Homopropargyl Amine Carboxylic Esters
作者:Sifan Yu、Ruyu Hua、Xiang Fu、Gengxin Liu、Dan Zhang、Shikun Jia、Huang Qiu、Wenhao Hu
DOI:10.1021/acs.orglett.9b02139
日期:2019.7.19
Developing an efficient and highly enantioselective protocol to access homopropargyl amines is of high interest to the synthetic community and also remains a formidable challenge for organic chemists. Here, we present integrated Rh2(OAc)4- and BINOL-derived chiral phosphoric acid cooperativelycatalyzed three-component reactions of alkynyldiazoacetates, imines with various nucleophiles including alcohols
Asymmetric synthesis of 1-alkynylcyclopropane-1-carboxylates
作者:Huw M.L. Davies、Timothy A. Boebel
DOI:10.1016/s0040-4039(00)01453-2
日期:2000.10
Dirhodium tetrakis(S-(N-dodecylbenzenesulfonyl)prolinate)(Rh2S-DOSP4) catalyzed decomposition of methyl alkynyldiazoacetates in the presence of alkenes results in highly diastereoselective and enantioselective cyclopropanations. (C) 2000 Published by Elsevier Science Ltd.