作者:Imma Bosch、Pedro Romea、Fèlix Urpí、Jaume Vilarrasa
DOI:10.1016/s0040-4039(00)60653-6
日期:1993.9
Omega-azido acids, alter activation of the carboxyl groups as mixed anhydrides, N3(CH2)nCOOCOAr (Ar = 3,5-dinitrophenyl or 2,4,6-trichlorophenyl), can be converted to macrolactams in good yields by treatment with Bu3P under high-dilution conditions; the presence of 4-dimethylaminopyridine improves slightly the yields. Amides and peptides can be readily obtained by this procedure.