ACETALS OF LACTAMS AND ACID AMIDES. 37. * REACTIONS OF AMIDE AND LACTAM ACETALS WITH DERIVATIVES OF UREA AND URETHANE AND SYNTHESIS OF CONDENSED PYRIMIDINES

Article abstract of DOI:10.1007/BF00506376

The reactions of diethylacetals of dimethylacetamide and N-methylbutyro-, -valero-, and -caprolactams with urea, thiourea, and urethane lead to the corresponding N-carbamide- and N-ethoxycarbonylamides, on the basis of which derivatives of pyrimidine and pyrrolo- and pyrido<2,3-d>pyrimidine and pyrido<4,5-b>azepine, as well as triazole derivatives, were synthetized.