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N ‐Heterocyclic Carbene‐Catalyzed [2+2+2] Annulation of Allenoates with Trifluoromethylketones
Author(s) -
Sun Lihui,
Wang Tong,
Ye Song
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201100383
Subject(s) - annulation , chemistry , carbene , dabco , phosphine , catalysis , medicinal chemistry , organocatalysis , organic chemistry , stereochemistry , enantioselective synthesis
In contrast with the reported phosphine‐ and DABCO‐catalyzed [3+2] and [2+2] annulation of allenoates with trifluoromethylketone, the [2+2+2] annulation of allenoates and two molecules of trifluoromethylketone was found under the condition of N ‐heterocyclic carbene catalysis.