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5-(4-Fluorophenyl)-1,3,7,9-tetramethylpyrido[2,3-d:6,5-d]dipyrimidine-2,4,6,8(1H,3H,7H,9H)-tetrone

✍ Scribed by Ghorbani, Hosein ;Bazgir, Ayoob

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
659 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The asymmetric unit of the title compound, C 19 H 16 FN 5 O 4 , contains two independent molecules. The dihedral angles between the main planes and the fluorophenyl rings in the two molecules are 83.24 (5) and 71.76 (4) . Weakstacking interactions may be effective in the stabilization of the crystal structure.

📜 SIMILAR VOLUMES

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.

10-(4-Chlorophenyl)-9-(4-methoxyphenyl)-
10-(4-Chlorophenyl)-9-(4-methoxyphenyl)-3,3,6,6-tetramethyl-3,4,6,7-tetrahydroacridine-1,8(2H,5H,9H,10H)-dione
✍ Chen, Yan ;Hao, Wen-Juan ;Tang, Zi-Qiang ;Jiang, Bo ;Li, Chun-Mei 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 833 KB

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