Synthesis of 3,7-disubstituted hexahydro- and tetrahydro-2 H-indazoles from cross-conjugated dienones.

Autor: Nuriev, V., Vatsadze, I., Sviridenkova, N., Vatsadze, S.
Předmět:
Zdroj: Russian Journal of Organic Chemistry; Mar2016, Vol. 52 Issue 3, p389-396, 8p
Abstrakt: The oxidation of 3,7-disubstituted hexahydroindazoles with potassium hexacyanoferrate(III) afforded previously unknown tetrahydro-2 H-indazole derivatives. A novel ring contraction reaction leading to 2,3-diazaspiro[4.4]non-3-en-1-one derivatives was discovered. The product structure was proved by NMR spectroscopy, mass spectrometry, and X-ray analysis. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index