A Synthesis of N-Acyl-1,2-dihydropyridines

Article abstract of DOI:10.1021/jo00195a031

A new approach to the synthesis of N-acyl-1,2-dihydropyridines based on the cyclization of N-acyl-1-azatrienes is introduced.These latter compounds were not isolated but were produced in the gas phase as transient intermediates by the flash vacuum pyrolysis of O-methoxycarbonyl N-penta-1,3-dien-5-yl hydroxamic acid derivatives 8.