SYNTHESIS AND PROPERTIES OF SUBSTITUTED 2-METHYLENEHYDRAZONO-2,3-DIHYDRO-3-BENZO[<i>b</i>]FURANONES

Abstract

The reaction of 2,3-dihydro-2,3-benzo[b]furandione with the triphenylphosphazines of diazo compounds leads to substituted 2-methylenehydrazono-2,3-dihydro-3-benzo[b]furanones, which are hydrolyzed in an acidic medium to the  substituted methylenehydrazides of o-hydroxyphenylglyoxalic acid and react with amines to form the  products  of  addition  at  the activated CH=N bond of the side chain or 2-hydrazono-2,3-dihydro-3-benzo[b]furanone respectively.

How to Cite
Pulina, N. A.; Zalesov, V. V.  Chem. Heterocycl. Compd. 2007, 43, 685. [Khim. Geterotsikl. Soedin. 2007, 817.]

For this article in the English edition see DOI 10.1007/s10593-007-0111-0