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2,10-Dibromo-6,6-dimethyl-dibenzo[d,f][1,3]dioxepine.

ABSTRACT: In the crystal structure of the title compound, C(15)H(12)Br(2)O(2), which was synthesized from 2,10-dibromo-2,2'-dihydroxy-biphenyl and 2,2-dimethoxy-propane, the aromatic rings are twisted by 35 (1)°. The heterocyclic ring exhibits a twisted conformation.

SUBMITTER: Zhang HQ

PROVIDER: S-EPMC2960964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2,10-Dibromo-6-isobutyl-6-methyl-dibenzo[d,f][1,3]dioxepine.

Project description:In the crystal structure of the title compound, C(18)H(18)Br(2)O(2), the two benzene rings of the bridged biphenyl unit are twisted by 38.0?(1)°.

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6,6'-Dimethyl-2,2'-[1,3-diazinane-1,3-diyl-bis(methyl-ene)]diphenol.

Project description:In the mol-ecule of the title compound, C(20)H(26)N(2)O(2), the 1,3-diazinane ring adopts a slightly distorted chair conformation and the hy-droxy-benzyl substituents occupy equatorial positions on the N atoms of the heterocyclic ring. There are two intra-molecular O-H?N hydrogen bonds between the N atoms of the 1,3-diazinane ring and the hy-droxy groups of the aromatic rings, with an S(6) set-graph motif. However, the two observed intra-molecular hydrogen-bond distances were different. Considering that both N atoms experience the same chemical environment, it is surprising to see the difference in O?N distances [2.6771?(14) and 2.8123?(12)?Å]. The crystal structure is further stabilized by a C-H?? interaction.

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6,6'-Dibromo-2,2'-dihex-yloxy-1,1'-bi-naphthalene.

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3,9-Dibromo-6,7-dihydro-5H-dibenzo[c,e]thiepine.

Project description:In the title mol-ecule, C(14)H(10)Br(2)S, the two benzene rings form a dihedral angle of 48.35?(14)°. The seven-membered ring adopts a boat conformation. In the crystal structure, mol-ecules are related by translation along the b axis and exhibit C-H?? inter-actions.

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