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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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Project description:The title compound, C(24)H(40)O(2), lies on an inversion center with a half-mol-ecule in the asymmetric unit. The central dioxane ring adopts a chair conformation. The four-membered ring is slightly puckered with a butterfly angle of 13.50?(14)°.

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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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Dispiro-[cyclo-propane-1,5'-endo-tricyclo-[5.2.1.0]deca-3,8-diene-10',1''-cyclo-propane].

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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(4aS,4bR,7R,10aS)-3,7-Dimethyl-10a-(propan-2-yl)-1,4,4a,4b,5,6,7,8,10,10a-deca-hydro-phenanthrene-1,4-dione.

Project description:In the title compound, C(19)H(26)O(2), the A ring adopts a chair conformation, whereas the B and C rings both adopt distorted half-chair conformations with the quaternary C atom common to both rings lying 0.577 (3) and 0.648 (3) Å out of the approximate plane defined by the remaining five C atoms (r.m.s. deviations = 0.1386 and 0.1156 Å) for the B and C rings, respectively. Mol-ecules are assembled in the crystal through C-H⋯O inter-actions involving both carbonyl O atoms, which lead to supra-molecular chains aligned along the b axis.

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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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