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Asymmetric Multicomponent Reactions for Efficient Construction of Homopropargyl Amine Carboxylic Esters.

Sifan YuRuyu HuaXiang FuGengxin LiuWenhao HuShikun JiaHuang QiuWenhao Hu
Published in: Organic letters (2019)
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 cooperatively catalyzed three-component reactions of alkynyldiazoacetates, imines with various nucleophiles including alcohols, indoles, and N,N-disubstituted anilines, affording the corresponding homopropargyl amines containing two vicinal chiral centers in satisfactory yields with high to excellent diastereo- and enantioselectivities.
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