Journal
ORGANIC LETTERS
Volume 23, Issue 14, Pages 5571-5575Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.1c01975
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Funding
- Natural Science Foundation of China [21871293, 22071264]
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A successful phosphine-catalyzed cascade annulation of Morita-Baylis-Hillman (MBH) carbonates and diazenes was achieved, giving tetrahydropyrazole-fused heterocycles bearing two five-membered rings in moderate to excellent yields. The reaction exhibited an unprecedented reaction mode of MBH carbonates, where two molecules of MBH carbonates were fully incorporated into the ring system.
A phosphine-catalyzed cascade annulation of Morita-Baylis-Hillman (MBH) carbonates and diazenes was achieved, giving tetrahydropyrazole-fused heterocycles bearing two five-membered rings in moderate to excellent yields. The reaction underwent an unprecedented reaction mode of MBH carbonates, in which two molecules of MBH carbonates were fully merged into the ring system.
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