103748-72-7Relevant articles and documents
ARYLAZOMETHYLENETRIPHENYLPHOSPHORANES: INTRA MOLECULAR REACTIONS WITH ALDONITRONYL SUBSTITUENTS IN THE ORTHO POSITION WITH RESPECT TO THE AZOPHOSPHORANE GROUP
Alemagna, A.,Buttero, P. Del,Licandro, E.,Papagni, A.,Ballabio, M.
, p. 2503 - 2512 (2007/10/02)
The title reactions begin with the attack on the aldonitronyl group by the nitrogen atom α to the ylidic carbon, to give, presumably, a cyclic species, which splits off a nitroso compound to afford indazolyl-2-methylenetriphenylphosphorane.In one case the primarily formed cyclic species underwent a further intra molecular cyclization to imidazoindazole.
