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Anti-Tricyclo-[4.2.1.1]deca-3,7-diene-9,10-dione.

ABSTRACT: The title compound, C(10)H(8)O(2), is a precursor to an unusual bis-homoaromatic dication and to heterodiamantanes and other oxa-cage compounds. Two independent mol-ecules, each of which is situated on a center of symmetry, comprise the unit cell. Both mol-ecules are in nearly identical chair conformations.

SUBMITTER: Gidaly MP

PROVIDER: S-EPMC2969011 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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anti-Tricyclo-[4.2.1.1]deca-3,7-diene-9,10-dione.

Gidaly Matthew P MP Harris Andria D AD Amado-Sierra Maria Del Rosario I Mdel R Jones Daniel S DS Etzkorn Markus M

Acta crystallographica. Section E, Structure reports online 20090311 Pt 4

The title compound, C(10)H(8)O(2), is a precursor to an unusual bis-homoaromatic dication and to heterodiamantanes and other oxa-cage compounds. Two independent mol-ecules, each of which is situated on a center of symmetry, comprise the unit cell. Both mol-ecules are in nearly identical chair conformations. ...[more]

PMID: 21582463

Similar Datasets

anti-Tricyclo-[4.2.1.1]deca-3,7-diene-9-endo,10-endo-diol.

Project description:The title compound, C(10)H(12)O(2), was synthesized as a candidate for further functionalization. The asymmetric unit comprises two independent mol-ecules, both of which are situated on a center of symmetry. Both mol-ecules are involved in a network of hydrogen bonding, with each alcohol group participating in one hydrogen bond as a donor and in a second hydrogen bond as an acceptor.

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3,8-Dimethyl-4,7-diaza-deca-3,7-diene-2,9-dione dioxime.

Project description:The complete mol-ecule of the title compound, C(10)H(18)N(4)O(2), is generated by a crystallographic inversion centre at the mid-point of the central C-C bond. The two oxime groups have an E configuration. In the crystal, mol-ecules are linked through inter-molecular O-H?N hydrogen bonds.

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3,8-Bis(4-chloro-phen-yl)-4,7-dimethyl-tricyclo-[4.2.2.0]deca-3,7-diene.

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Project description:The title compound, C(11)H(10)O(2), crystallizes with two independent mol-ecules in the asymmetric unit. In one mol-ecule, the dihedral angle between the mean planes of the C-C=C-C group of the diene unit and essentially planar cyclo-hexene ring is 51.07?(9)°, while in the other mol-ecule it is 54.49?(12)°. In the crystal structure, weak inter-molecular C-H?O inter-actions link the mol-ecules into columns along the b axis.

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5-Methyl-2,4-bis-(methyl-sulfan-yl)tricyclo-[6.2.1.0]undeca-4,9-diene-3,6-dione.

Project description:The structure analysis of the title compound, C(14)H(16)O(2)S(2), shows the SMe and H atoms of the bond linking the six-membered rings to be syn and also to be syn to the bridgehead -CH(2)- group. Each of the five-membered rings adopts an envelope conformation at the bridgehead -CH(2)- group. The dione-substituted ring adopts a folded conformation about the 1,4-C?C vector, with the ketone groups lying to one side. The cyclo-hexene ring adopts a boat conformation.

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Project description:The title compound, C(15)H(22)O(3), was prepared via amino-acid-promoted Robinson annulation followed by tandem Pd/C-mediated hydrogenation and oxidative cyclization. This product was instrumental in determining the feasibility of a stereocontrolled hydrogenation in which the directing hydroxyl group is adjacent to the 6-7-ring network and its olefinic component. The asymmetric unit consists of a single mol-ecule with normal geometric parameters. The absolute configuration was assigned based on the known enanti-omeric prescursor. Inter-molecular C-H?O inter-actions link each mol-ecule with four neighboring mol-ecules.

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Project description:The title compound, C(14)H(16), is built up from three five-membered rings. Two of the five-membered rings display an envelope conformation and the third one is almost planar (r.m.s. deviation = 0.014?Å).

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1,1'-Dibenzyl-5,5''-dichloro-1,1'',2,2''-tetra-hydro-dispiro-[indole-3,7'-[6,9]diaza-tricyclo-[7.3.0.0(2,6)]dodecane-8',3''-indole]-2,2''-dione.

Project description:In the title compound, C(38)H(34)Cl(2)N(4)O(2), the piperazine ring adopts a chair conformation. The pyrrolidine rings that are fused to the piperazine ring adopt envelope conformations (in which the C atoms connecting the two rings represent the flap). The indoline ring systems are approximately planar (r.m.s. deviations = 0.026 and 0.034?Å) and are aligned at a dihedral angle of 54.98?(3)°.

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Synthesis and Antitumor Activity of a Series of Novel 1-Oxa-4-azaspiro[4,5]deca-6,9-diene-3,8-dione Derivatives.

Project description:A series of novel 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-diones were designed and synthesized by using 4-aminophenol and α-glycolic acid or lactic acid as starting materials in three or four steps. The key step is the metal-catalyzed oxidative cyclization of the amide to 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-diones (10a and 10b), the reaction conditions of which are investigated and optimized. The anticancer activity of 17 1-oxa-4-azaspiro[4.5]deca-6,9-diene-3,8-dione derivatives was evaluated. Preliminary results showed that 15 compounds have moderate to potent activity against human lung cancer A549, human breast cancer MDA-MB-231, and human cervical cancer HeLa cancer cell lines. Among them, compounds 11b and 11h were the most potent against A549 cell line with 0.18 and 0.19 µM of IC50, respectively; compounds 11d, 11h, and 11k showed the most potent cytotoxicity against MDA-MB-231 cell line with 0.08, 0.08, and 0.09 µM of IC50, respectively, while the activities of 11h, 11k, and 12c against HeLa cell line were the most potent with 0.15, 0.14, and 0.14 µM of IC50, respectively. Compound 11h is a promising candidate for further development, which emerged as the most effective compound overall against the three tested cancer cell lines.

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