Isolable analogues of the Breslow intermediate derived from chiral triazolylidene carbenes.
Isolable analogues of the Breslow intermediate derived from chiral triazolylidene carbenes.
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DOI:
10.1021/ja302031v
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发表时间:
2012-04-11
影响因子:
15
通讯作者:
Rovis, Tomislav
中科院分区:
文献类型:
--
作者:
DiRocco, Daniel A.;Oberg, Kevin M.;Rovis, Tomislav
Since Breslow’s initial report on the thiamine mode of action, the study of catalytic acyl carbanion processes has been an area of immense interest. With the advent of azolylidene catalysis a plethora of reactivtiy has been harnessed, but the crucial nucleophilic intermediate proposed by Breslow had never been isolated or fully characterized. Herein we report the isolation and full characterization of nitrogen analogues of the Breslow intermediate. Both stable and catalytically relevant, these species provide a model system for the study of acyl carbanion and homoenolate processes catalyzed by triazolylidene carbenes.
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