1,13-Dimethyl-6H,7H,8H-chromeno[3′,4′:5,6]pyrano[3,2-c]chromene-6,8-dione
✍ Scribed by Choudhary, M. Iqbal ;Lannang, Alain Meli ;Anjum, Shazia ;Fun, Hoong-Kun ;Lontsi, David ;Tangmouo, Jean Gustave
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 321 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
The title compound, C 23 H 25 BrO 3 , was synthesized by the reaction of p-bromobenzaldehyde with dimedone and HClO 4 / SiO 2 in EtOH. In the molecule, the dihydropyran ring adopts a boat conformation and the two cyclohexene rings are in a trans conformation.
The asymmetric unit of the title compound, C~22~H~29~N~3~O~5~S, contains two independent molecules, __A__ and __B__, which differ slightly in the orientation of the ethyl and tosyl groups with respect to the attached pyrrolidine ring, as evidenced by the relevant torsion angles. In both molecules, t
The title compound, C 30 H 32 ClNO 3 , was synthesized by the reaction of dimedone with 4-methoxybenzaldehyde and 4chlorobenzenamine in water. The dihydropyridine ring is in a boat conformation. Both cyclohexene rings adopt envelope conformations. The chlorophenyl and methoxyphenyl rings form dihedr