SYNTHESIS OF NAPHTHO[1,2-<i>e</i>]PYRAZOLO[5,1-<i>b</i>][1,3]OXAZINES

Abstract

The previously unknown heterocyclic system naphtho[1,2-e]pyrazolo[5,1-b][1,3]oxazine was synthesized by the condensation of 1-dimethylaminomethyl-2-naphthols with bromopyrazoles. It is proposed that the highly reactive o-methylenequinone of the naphthalene series is formed as an intermediate.

Authors: V. A. Osyanin, V. Y. Nakushnov, and Y. N. Klimochkin

English translation in Chemistry of Heterocyclic Compounds, 2011, 47 (6), pp 755-757

http://link.springer.com/article/10.1007/s10593-011-0830-0