N-[bis(methylthio)methylene]amino Ester (BMMA): Novel Reagents for Annelation of Pyrimidine Moieties
作者:Fritz Sauter、Johannes Fröhlich、Krain Blasl、Karl Gewald
DOI:10.3987/com-94-s86
日期:——
New reagents for heterocyclic annelations containing a N-[bis(methylthio)methylene]amino moiety (=BMMA) were developed and studied regarding their scope and limitations: one-pot reaction with (hetero)aromatic ortho-aminocarbonyl-type model compounds (''carbonyl'' = COOEt, COMe and CN) to a series of new benzo- or thieno-condensed pyrimidines, pyrrolo[1,2-c]pyrimidines, imidazo[1,2-c]pyrimidines and 1,2,4-triazolo[1,5-c]pyrimidines, depending on the reagent used [(MeS)(2)C=N-R with R = CH2-COOEt, CH(2)CH(2)COOEt, NH-COOEt].