期刊
CHEMICAL COMMUNICATIONS
卷 52, 期 61, 页码 9574-9577出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc04648g
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资金
- National Natural Science Foundation of China [21102029, 21173064, 21472031]
- Zhejiang Provincial Natural Science Foundation of China [LY14B020013, LR14B030001]
A family of four-membered enones, polysubstituted alkylidenecyclo-butenones, were easily prepared by a Lewis acid catalyzed [2+2] cycloaddition of ynamides and propargyl silyl ethers. This challenging regioselective [2+2] cycloaddition enables the efficient construction and conversion of four-membered enones, which provides high-value and structurally diverse products through the unexpected ring-opening and ring expansion of alkylidenecyclobutenone with Grignard reagents, organolithium, primary amines, and water.
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