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5′,5′,6,6-Tetramethyl-6,7-dihydro-3′H-spiro[1,3-benzodithiole-2,1′-cyclohexane]-3′,4(5H)-dione

✍ Scribed by L. V. Timokhina; O. V. Sokol’nikova; L. V. Kanitskaya; M. G. Voronkov

Book ID
111464976
Publisher
SP MAIK Nauka/Interperiodica
Year
2009
Tongue
English
Weight
173 KB
Volume
45
Category
Article
ISSN
1070-4280

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9-(4-Bromophenyl)-3,3,6,6-tetramethyl-3,
9-(4-Bromophenyl)-3,3,6,6-tetramethyl-3,4,6,7-tetrahydro-2H-xanthene-1,8(5H,9H)-dione
✍ Bigdeli, M. Ali ;Mahdavinia, Gholam Hossein ;Amani, Vahid 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 646 KB

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.