Substituted vinylene carbonates {were|had been|have been} {directly|straight} {prepared|ready} from aromatic aldehydes following a one-pot Benzoin condensation / transcarbonation sequence {under|below|beneath} solvent-free {conditions|circumstances|situations}. The {combination|mixture} of a N-phenyl substituted triazolium salt NHC precursor and 4-dimethylaminopyridine (DMAP) was {found|discovered|identified|located} {essential|important|crucial|vital|necessary|critical} to {reach|attain} {high|higher} yield and selectivity. The reaction scope was investigated {with a|having a|using a} {range|variety} of aromatic aldehydes {and the|and also the|as well as the|along with the|plus the} corresponding vinylene carbonates {were|had been|have been} obtained with 32-86% isolated yields (14 examples). 4-Fluoro-4′-methoxy-1,1′-biphenyl Price 5-Chloro-1,3-benzoxazol-7-amine In stock PMID:24957087
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