10-Phenyl-6b,7,8,9,9a,10-hexahydro-6H-cyclopenta[4,5]pyrano[3,2-c]chromen-6,9-dione
نویسندگان
چکیده
منابع مشابه
10-Phenyl-6b,7,8,9,9a,10-hexahydro-6H-cyclopenta[4,5]pyrano[3,2-c]chromen-6,9-dione
In the title compound, C(21)H(16)O(4), the dihedral angle between the phenyl ring and the 2H-chromene ring system is 59.8 (2)°. The crystal packing is stabilized by weak π-π stacking inter-actions [centroid-centroid distances = 3.667 (2) Å] and inter-molecular C-H⋯O hydrogen-bonding inter-actions.
متن کامل8-Phenyl-10-oxa-8-azatricyclo[4.3.0.12,5]decane-7,9-dione
The reaction of aniline with norcantharidin produced the imide title compound, C(14)H(13)NO(3), which shows no significant hydrogen bonds in the crystal structure. The dihedral angle between the phenyl and pyrrolidine rings is 48.48 (6)°.
متن کامل2-(4,5,6,7,8,9-Hexahydro-6a-azaphenylen-2-ylmethylene)indan-1,3-dione
The title compound, C(22)H(19)NO(2), has potential for use as a new nonlinear optical material. Mol-ecules are almost planar. One C atom of the heterocyclic ring system is disordered over two positions; the site occupancy factors are 0.6 and 0.4.
متن کاملSynthesis of 3,4,7,8-tetrahydronaphthalene-1,5(2H,6H)-dione.
A short and high yielding route for the preparation of the title compound, starting from commercially available 1,5-dihydroxynaphthalene, is described. The key step in the sequence is the air oxidation of a bis(trimethylsilyloxy)diene precursor.
متن کامل7,9-Dichloro-6H,12H-indolo[2,1-b]quinazoline-6,12-dione
There are two independent mol-ecules in the asymmetric unit of the title compound, C(15)H(6)Cl(2)N(2)O(2). The conjugated four-ring system is essentially planar in each mol-ecule [maximum deviation = 0.089 (2) Å]. In the crystal, weak inter-molecular C-H⋯Cl, C-H⋯O and C-H⋯·N inter-actions help to stabilize the packing.
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811006192