Reactions of trimethylsilyl isocyanate and isothiocyanate with 3-(dialkylamino)-2H-azirines. A facile synthesis of 1-unsubstituted 4-(dialkylamino)imidazolin-2-ones and 4-(dialkylamino)imidazoline-2-thiones
Reactions of trimethylsilyl isocyanate and isothiocyanate with 3-(dialkylamino)-2H-azirines. A facile synthesis of 1-unsubstituted 4-(dialkylamino)imidazolin-2-ones and 4-(dialkylamino)imidazoline-2-thiones