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9-Methyl-2,6-di-p-tolyl-2,3,6,7-tetrahydro-1H,5H-pyrimido[5,6,1-ij]quinazoline

✍ Scribed by Mahon, Andrew B. ;Craig, Donald C. ;Try, Andrew C.

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

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✦ Synopsis

The title compound, C~25~H~27~N~3~, possesses an essentially planar, fused tricyclic platform, from which two p-tolyl rings project on the same face to create a hydrophobic pocket.

πŸ“œ 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 πŸ“‚ Article πŸ“… 2007 πŸ› International Union of Crystallography 🌐 English βš– 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.

1,1β€²,1β€²β€²-[(5RS,6RS)-6-Hydroxy-6-methyl-3
1,1β€²,1β€²β€²-[(5RS,6RS)-6-Hydroxy-6-methyl-3,4,5,6-tetrahydro-2H-pyran-3,3,5-triyl]triethanone
✍ Burton, Sylvester ;Fronczek, Frank R. ;Maverick, Andrew W. πŸ“‚ Article πŸ“… 2007 πŸ› International Union of Crystallography 🌐 English βš– 142 KB

In the title compound, C 12 H 18 O 5 , the ring has a chair conformation, with endocyclic torsion angle magnitudes in the range 47.7 (3)-66.7 (2) . The OH group donates an intermolecular hydrogen bond to a C O group with an OÁ Á ÁO distance of 2.791 (3) A ˚, forming chains. organic papers o2662 Burt