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1-Benzoyl-6-methyl-3-methyl­sulfanyl-6,7-dihydro-1H-pyrano[4,3-c]pyrazol-4-one

✍ Scribed by Hao, Jing-Jun ;Gao, Feng ;Wang, You-Ming ;Li, Zheng-Ming

Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
83 KB
Volume
61
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound was synthesized by adding benzohydrazide (0.136 g, 1 mmol) to an absolute ethanol solution (30 ml) containing 3-[bis(methylsulfanyl)methylene]dihydro-6-methyl-3H-pyran-2,4-dione (0.232 g, 1 mmol). The mixture was stirred for 5.5 h at room temperature. The product was obtained by silica-gel column chromatography using a 1:5 mixture of ethyl acetate and petroleum ether as eluant. Colourless single crystals suitable for X-ray diffraction

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