In the title compound, C(30)H(22)BrNO(2), the cyclo-pentane ring of the dihydro-acenaphthyl-ene group and the pyrrolidine ring are both in envelope conformations with the spiro C atom and N atom, respectively, as the flap atom. The cyclo-pentane ring of the indane group adopts a half-chair conformation. A weak intra-molecular C-H⋯O hydrogen bond forms an S(8) ring motif. The naphthalene ring system of the dihydro-acenaphthyl-ene group forms dihedral angles of 41.76 (6) and 42.17 (6)° with the benzene ring of the bromo-phenyl group and the benzene ring of the indane group, respectively. The dihedral angle between the two benzene rings is 83.92 (7)°. In the crystal, mol-ecules are linked by weak C-H⋯O and C-H⋯N hydrogen bonds into a two-dimensional network parallel to the ac plane. Weak C-H⋯π inter-actions are also observed.
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http://dx.doi.org/10.1107/S1600536812014213 | DOI Listing |
Acta Crystallogr E Crystallogr Commun
June 2022
Department of Chemistry, Baku State University, Z. Khalilov str. 23, Az, 1148 Baku, Azerbaijan.
In the title compound, CHNO, the central five-membered cyclo-pentene ring adopts an envelope conformation while the five-membered spiro 2,3-di-hydro-1-pyrrole rings exhibit twisted envelope and envelope conformations. One of the 1,3-di-hydro-2-indol-2-one units is in an axial position and the other is in a bis-ectional position. The methyl methanimidate unit is in an equatorial position.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
August 2021
University of Dar es Salaam, Dar es Salaam University College of Education, Department of Chemistry, PO Box 2329, Dar es Salaam, Tanzania.
The mol-ecule of the title compound, CHClNO, is generated by a crystallographic inversion centre at the midpoint of the central C-C bond. A kink in the mol-ecule is defined by a torsion angle of -169.86 (15)° about this central bond of the alkyl bridge.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
May 2021
University of Dar es Salaam, Dar es Salaam University College of Education, Department of Chemistry, PO Box 2329, Dar es Salaam, Tanzania.
The mol-ecule of the title compound, CHBrNO, comprises a fused tricyclic system consisting of two five-membered rings (cyclo-pentane and tetra-hydro-furan) and one six-membered ring (tetra-hydro-pyridinone). Both five-membered rings of the tricyclic system have envelope conformations, and the conformation of the six-membered cycle is inter-mediate between chair and half-chair. In the crystal, the mol-ecules are linked by C-H⋯O hydrogen bonds and C-H⋯π, C-Br⋯π and C⋯O inter-actions into double layers.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2020
Chemical Diversity Research Institute, 2A Rabochaya St., Khimki, Moscow Region, 141400, Russian Federation.
The chiral title compound, CHNO, which can be used for producing active pharmaceutical ingredients for treatment of type 2 pancreatic diabetes and other pathologies dependent on insulin resistance, was prepared from (1,3)-camphoric acid and -phenyl-enedi-amine. It crystallized from an ethanol solution in the chiral monoclinic space group. The five-membered ring adopts a twisted conformation with the methyl-substituted C atoms displaced by -0.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
August 2019
Department of Biochemistry, University of Missouri, Columbia, MO 65211, U.S.A.
The title compound, CHNO, (), is conformationally unstable; the predominant form present in its solution is the β-pyran-ose form (74.3%), followed by the β- and α-furan-oses (12.1 and 10.
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