N-Heterocyclic Carbene Catalyzed Vinylogous Aldol Reaction of 2-(Trimethylsilyloxy)furan and Aldehydes

Guang-Fen Du, Lin He, Cheng-Zhi Gu & Bin Dai
A N-Heterocyclic carbenes (NHC) catalyzed vinylogous aldol reaction between 2-(trimethylsilyloxy)furan and aldehydes has been developed, providing γ-substituted butenolides in high yields with good diastereoselectivities. Furthermore, the catalyst loading can be reduced to 1 mol%.
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