Useful synthesis of benzotriazole photostabilizers by reductive carbonylation of ortho-nitrophenylazo compounds, catalyzed by Ru3(CO)12 in the presence of NEt3
Articolo
Data di Pubblicazione:
1990
Citazione:
Useful synthesis of benzotriazole photostabilizers by reductive carbonylation of ortho-nitrophenylazo compounds, catalyzed by Ru3(CO)12 in the presence of NEt3 / M. Pizzotti, S. Cenini, R. Psaro, S. Costanzi. - In: JOURNAL OF MOLECULAR CATALYSIS. - ISSN 0304-5102. - 63:3(1990), pp. 299-304.
Abstract:
Ru3(CO)12 catalyzes the reductive carbonylation of ortho-nitrophenylazo compounds to give the corresponding benzotriazoles, in ortho-dichlorobenzene or ortho-xylene, at 180-200 °C and 70-80 atm, although with rather low conversion and selectivity. Both conversion and selectivity are markedly increased by addition of a base such as Et3N, which acts, under our conditions, as a deoxygenating agent of the nitro group. The mechanism of the reaction has been investigated by studying the possible intermediates.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
M. Pizzotti, S. Cenini, R. Psaro, S. Costanzi
Link alla scheda completa: