A. N. Andin
Jun 30, 2018
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Journal
Russian Journal of Organic Chemistry
Abstract
Heating some derivatives of 5,6,7,8-tetrahydro-4Н-chromene and 1,2,5′,6′,7′,8′-hexahydrospiro-[indole-3,4′-chromene] in acid environment causes a hydrolytic degradation with the formation of functionally substituted carboxylic acids. A derivative of 1,2-dihydrospiro[indole-3,4′-pyran] in the same conditions afforded a mixture of products resulting from retro-Michael decomposition and recyclization.