ortho-Formyl substituted arylazomethylenetriphenylphosphoranes: a novel facile intramolecular thermal rearrangement with NN bond fission
作者:Andreina Alemagna、Paola Del Buttero、Emanuela Licandro、Stefano Maiorana
DOI:10.1039/c39810000894
日期:——
The arylazomethylenetriphenylphosphoranes (1a) and (1b) afford, in good yields, the quinazolin-4-one derivatives (4a) and (4b)via a facilethermally promoted rearrangement, with NN bond cleavage and elimination of PPh3.