期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 77, 页码 10719-10722出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc05910h
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资金
- Nanyang Normal University [ZX2015009]
A ruthenium based photoredox catalyst in combination with a substoichiometric amount of 1,4-diazabicyclo[2.2.2]octane (DABCO) efficiently catalyzed dual decarboxylative couplings between alkenyl carboxylic acids and N-(acyloxy)phthalimides derived from aliphatic carboxylic acids, delivering alkylated styrene derivatives in a high regio-and stereo-selective manner under mild reaction conditions. Various types of secondary, tertiary, and quaternary aliphatic carboxylic acids as well as a-amino acids can be used as suitable substrates. Mechanistic analysis suggested that the reaction proceeds through a radical mechanism mediated by a Ru(I)/Ru(II) catalytic cycle with DABCO acting both as the base and the co-catalyst for single electron transfer.
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