ChemInform Abstract: Diketene as an Alternative Substrate for a New Biginelli-Like Multicomponent Reaction: One-Pot Synthesis of 5-Carboxamide Substituted 3,4-Dihydropyrimidine-2(1H)ones.
Pyridines and fused pyridines are accessible by a combination of a Lewis acid-catalyzed multicomponent reaction and aromatization involving loss of a 2-furylmethyl chain.
A one-pot multicomponent reaction for assembling substituted 4-arylidene imidazolin-5-ones from l-amino acid methyl esters, iso-, isothio- or isoselenocyanates, and α-bromoketones has been discovered.