Pentacyclo[8.2.1.14,7.02,9.03,8]tetradeca-5,11-diene
نویسندگان
چکیده
The title compound, C(14)H(16), was prepared through [2 + 2] cyclo-addition of norbornadiene. There are two independent mol-ecules in the asymmetric unit: each is centrosymmetric with the centroid of the four-membered ring located about an inversion center. Each mol-ecule possesses an exo-trans-exo conformation.
منابع مشابه
Hexamethyl 13,14-dioxapentacyclo[8.2.1.14,7.02,9.03,8]tetradeca-5,11-diene-1,4,5,6,11,12-hexacarboxylate
In the title compound, C(24)H(24)O(14), the stereochemistry at the cyclo-butane ring is cis-anti-cis and the -COOMe groups in the bicyclic rings are syn to each other. The mol-ecule lies on a twofold rotation axis. In the crystal, weak C-H⋯O hydrogen bonds connect mol-ecules into chains along [001], forming R(2) (2)(10) rings.
متن کاملTetra-tert-butyl 13,14-dioxapentacyclo[8.2.1.14,7.02,9.03,8]tetradeca-5,11-diene-5,6,11,12-tetracarboxylate
The stereochemistry of the title compound, C(32)H(44)O(10), at the cyclo-butane ring is cis-anti-cis. The mol-ecule lies across an inversion center. In the crystal, weak C-H⋯O hydrogen bonds connect mol-ecules into chains along [100], forming R(2) (2)(6) rings.
متن کاملTetramethyl 1,4-dimethyl-13,14-dioxapentacyclo[8.2.1.14,7.02,9.03,8]tetradeca-5,11-diene-5,6,11,12-tetracarboxylate
In the title compound, C(22)H(24)O(14), the relative stereochemistry at the cyclo-butane ring is cis-anti-cis and the methyl groups in the bicyclic rings are syn to each other. The two carboxyl-ate groups attached to the same -C=C- bond are disordered over two sets of sites in a 0.603 (2):0.397 (2) ratio. In the crystal, weak C-H⋯O hydrogen bonds connect mol-ecules into C(12) chains along [001]...
متن کاملanti-1′,6′,7′,8′,9′,14′,15′,16′-Octachlorodispiro[1,3-dioxolane-2,17′-pentacyclo[12.2.1.16,9.02,13.05,10]octadecane-18′,2′′-1,3-dioxolane]-7′,15′-diene
The title compound, C(22)H(20)Cl(8)O(4), was prepared as part of the synthesis of precursors for the preparation of fluorinated mol-ecular tweezers. The mol-ecule sits on an inversion center, thus requiring that the cyclo-octane ring adopt a chair conformation.
متن کاملsyn-Dispiro[1,3-dioxolane-2,17′-pentacyclo[12.2.1.16,9.02,13.05,10]octadecane-18′,2′′-[1,3]dioxolane]-7′,15′-diene
The title compound, C(22)H(28)O(4), is composed of a central octa-decane ring and two spiro-[bicyclo-[2.2.1]hept[2]ene-7,2'-[1,3]dioxolane] units. This polycycle has pseudo twofold symmetry and the central cyclo-octane ring has a distorted boat configuration.
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