SYNTHESIS OF 3-R<i>2</i>-4-R<i>1</i>-ACETYL-(ETHOXYCARBONYL)-6-HYDROXY-6-METHYLINDAZOLES

Abstract

It was discovered that functionally substituted tetrahydroindazoles can be aromatized by the action of sulfur. Previously unknown 3-R²-4-R¹-5-acetyl(ethoxycarbonyl)-6-methylindazoles were obtained. The products from aromatization cannot be obtained if a nitro group is introduced or one heteroatom in the substrate is replaced by oxygen.

Authors: V. V. Sorokin, A. V. Grigor'ev, A. K. Ramazanov, and A. P. Krivenko.

English Translation in Chemistry of Heterocyclic Compounds, 1999, 35 (6), pp 671-673

http://link.springer.com/article/10.1007/BF02251624