Catalytic Asymmetric Alkynylation of C1-Substituted C,N-Cyclic Azomethine Imines by CuI/Chiral Brønsted Acid Co-Catalyst
作者:Takuya Hashimoto、Masato Omote、Keiji Maruoka
DOI:10.1002/anie.201104017
日期:2011.9.12
up: The title reaction was developed for the synthesis of chiral tetrahydroisoquinoline derivatives with a tetrasubstituted carbon center at the C1‐position (see scheme, Bz=benzoyl, pybox=2,6‐bis(2‐oxazolinyl)pyridine). The reaction was facilitated effectively by the co‐catalyst system composed of copper(I)/Ph‐pybox and an axially chiral dicarboxylic acid.
这一切加起来:标题反应是为合成手性四氢异喹啉衍生物而开发的,该手性在C1位具有一个四取代的碳中心(请参阅方案,Bz =苯甲酰基,pybox = 2,6-双(2-恶唑啉基)吡啶)。由铜(I)/ Ph-pybox和轴向手性二羧酸组成的助催化剂体系有效地促进了反应。