Tandem Catalytic Asymmetric Friedel-Crafts/Henry Reaction: Control of Three Contiguous Acyclic Stereocenters
摘要：
Good things come in threes: Highly functionalized indole derivatives with three contiguous stereocenters were formed in the title reaction of an indole, a nitroalkene, and an aldehyde with the imidazoline–aminophenol catalyst 1–CuOTf in the presence of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). The major isomers of the adducts were obtained with up to 99 % ee. Tf=trifluoromethanesulfonyl, Ts=p-toluenesulfonyl; R=H, Me; R′,R′′=alkyl, aryl.
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关键词：
asymmetric catalysis domino reactions Friedel&ndash Crafts reaction Henry reaction multicomponent reactions
DOI：
10.1002/anie.200801373
被引量：
年份：
2008
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