Lactam Acetals : Part III - Reactions with Aryl Isocyanates and Aryl Isothiocyanates
Lactam acetals (1-3) react readily with aryl isothiocyanates to form 1,3-diaryl-2,4-dithioxo-N-alkyl-azacycloalkanopyrimidines (6-11).With aryl isocyanates the products formed are dependent upon the ring size of the lactam acetal: 1-methyl-2,2-dime