ARYL-SUBSTITUTED 1,10<i>b</i>-DIHYDRO-5H-PYRAZOLO[1,5-<i>c</i>]-1,3-BENZOXAZINES

Abstract

Substituted 1,10b-dihydro-5H-pyrazolo[1,5-c]1,3-benzoxazines have been obtained by condensation of 5-(2-hydroxyphenyl)-3-phenylpyrazole with aromatic aldehydes. The detailed structure of the compounds obtained has been elucidated from their 1H NMR spectra by application of the nuclear Overhauser effect and the conclusions have been confirmed by an X-ray diffraction study.

Authors: S. M. Desenko, N. V. Getmanskii, V. N. Chernenko, I. M. Zemlin, O. V. Shishkin, and V. D. Orlov.

English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (6), pp 716-721

http://link.springer.com/article/10.1007/BF02251632