V. Vasin, I. Bolusheva, N. Somov
Jun 2, 2017
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Journal
Russian Journal of Organic Chemistry
Abstract
Methyl (Z)-3-bromo-3-(4-methylbenzenesulfonyl)prop-2-enoate reacted with acetylacetone in THF in the presence of sodium hydride (3 h, 50°C) to give methyl (E)-3-acetyl-2-[(4-methylbenzenesulfonyl)-methylidene]-4-oxopentanoate as the only product. According to the X-ray diffraction data, the crystalline product has enol structure.