N-heterocyclic carbene(NHC)is both a family of strongσ-donor ligands for transition metals and a privileged class of organocatalysts with synthetic potential that rivals popular amine and phosphoric acid catalysts.NH...N-heterocyclic carbene(NHC)is both a family of strongσ-donor ligands for transition metals and a privileged class of organocatalysts with synthetic potential that rivals popular amine and phosphoric acid catalysts.NHC was found as a key catalytic species in thiamine diphosphate catalyzed biochemical reactions[1].However,due to their inherent chemical instability,free NHCs had not been isolated until1991 by Ardungo et al.[2].Since then,the use of展开更多
基金the National Natural Science Foundation of China (21372013, 21572004)the Shenzhen Peacock Program (KQTD201103)
文摘N-heterocyclic carbene(NHC)is both a family of strongσ-donor ligands for transition metals and a privileged class of organocatalysts with synthetic potential that rivals popular amine and phosphoric acid catalysts.NHC was found as a key catalytic species in thiamine diphosphate catalyzed biochemical reactions[1].However,due to their inherent chemical instability,free NHCs had not been isolated until1991 by Ardungo et al.[2].Since then,the use of
