Unexpected oxidative C-C cleavage in the metallation of 2-substituted imidazolium salts to give N-heterocyclic carbene complexes.
Imidazolium salts blocked at C2 with methyl or benzyl groups unexpectedly react with silver oxide to give N-heterocyclic carbene complexes of silver via an oxidative carbon-carbon bond cleavage.
Chianese
Anthony R
AR
Chemistry Department, Yale University, PO Box 208107, New Haven, Connecticut 06520-8107, USA.
Zeglis
Brian M
BM
Crabtree
Robert H
RH