Amidinoyl isothiocyanates in the synthesis of condensed heterocycles: Preparation of quinazolino[3,4-c][1,3,5]-benzotriazepines and quinazolino[3,4-c][1,2,3,5]-benzotetraazepines
摘要:
When heated, amidinoyl isothiocyanates (1) with 2-nitrophenyl isothiocyanate cyclize to 4-(2'-nitroanilino)quinazolines (II) and after reduction to 2'-amino derivatives (III). The latter serve as precursors to derivatives of the title compounds.
Amidinoyl isothiocyanates in the synthesis of condensed heterocycles: Preparation of quinazolino[3,4-c][1,3,5]-benzotriazepines and quinazolino[3,4-c][1,2,3,5]-benzotetraazepines
摘要:
When heated, amidinoyl isothiocyanates (1) with 2-nitrophenyl isothiocyanate cyclize to 4-(2'-nitroanilino)quinazolines (II) and after reduction to 2'-amino derivatives (III). The latter serve as precursors to derivatives of the title compounds.