A Simple, Regioselective Synthesis of 5,6-Dihydro-1,3,5-triazine-2,4(1H,3H)-dione Derivatives from N-Trimethylsilyl Imines via 1,3-Diazabutadienes

Article abstract of DOI:10.1055/s-1989-27212

2-Trimethylsiloxy- and 2-trimethylsilylthio-1,3-diaza-1,3-butadienes, formed on reaction of trimethylsilylimines with isocyanates and isothiocyanates R₂-N=C=X (X=O, S), react with isocyanates to give high yields of substituted 5,6-dihydro-1,3,5