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The structure of gentiogenal: (±)-6-methyl-1-oxo-3,4-dihydro-1H,6H-pyrano[3,4-c]pyran-5-carbaldehyde, C10H10O4

✍ Scribed by Spek, A. L. ;Duisenberg, A. J. M. ;van der Sluis, W. G. ;van der Nat, J. M. ;Labadie, R. P.

Book ID
114501543
Publisher
International Union of Crystallography
Year
1983
Tongue
English
Weight
322 KB
Volume
39
Category
Article
ISSN
0108-2701

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📜 SIMILAR VOLUMES

1-Benzoyl-6-methyl-3-methyl­sulfanyl-6,7
1-Benzoyl-6-methyl-3-methyl­sulfanyl-6,7-dihydro-1H-pyrano[4,3-c]pyrazol-4-one
✍ Hao, Jing-Jun ;Gao, Feng ;Wang, You-Ming ;Li, Zheng-Ming 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 83 KB

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 s

4,4-Dimethyl-2-tosyl-2,3,3a,4-tetrahydro
4,4-Dimethyl-2-tosyl-2,3,3a,4-tetrahydro-1H,10H-pyrrolo[3,4-c]pyrano[6,5-b]indan-10-one
✍ Chinnakali, K. ;Sudha, D. ;Jayagopi, M. ;Raghunathan, R. ;Fun, Hoong-Kun 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 811 KB

The molecule of the title compound, C~23~H~23~NO~4~S, adopts a folded conformation, with the cyclopentadienone ring and tosyl groups arranged in an almost face-to-face fashion. The pyrrolidine ring has an envelope conformation and the dihydropyran ring is in a half-chair conformation. The pyrrolidin