Gold-catalyzed nitrene transfer to activated alkynes: formation of α,β-unsaturated amidines.
Gold-catalyzed nitrene transfer to activated alkynes: formation of α,β-unsaturated amidines.
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DOI:
10.1021/ol2002607
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发表时间:
2011-04-01
期刊:
影响因子:
5.2
通讯作者:
Zhang, Liming
中科院分区:
文献类型:
--
作者:
Li, Chaoqun;Zhang, Liming
A gold-catalyzed intermolecular nitrene transfer to alkynes was developed for the first time, revealing a new mode of nitrene transfer and providing a novel access to versatile α-imino metal carbenes. Various mild nitrene-transfer reagents were examined, and iminopyridium ylides especially those based on 3,5-dichloropyridine turned out to be highly effective. With activated alkynes such as N-alkynyloxazolidinones as substrates, α, β-unsaturated amidines were formed in mostly good yields.
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