- Full text PDF available (6)
- This year (0)
- Last 5 years (4)
- Last 10 years (6)
Journals and Conferences
The title compound, C(17)H(11)Cl(3)O, was synthesized via the Vilsmeier-Haack reaction. The dihydro-naphthalene ring system is non-planar, the dihedral angle between the two fused rings being 10.87 (13)°; it forms a dihedral angle of 81.45 (10)° with the dichloro-phenyl ring. The crystal structure features inter-molecular C-H⋯O hydrogen bonds.
In the title salt, C14H20NO(+)·Cl(-), the piperidine ring adopts a chair conformation. In the crystal, the cations and anions are linked by classical N-H⋯Cl hydrogen bond and weak C-H⋯Cl and C-H⋯O hydrogen bonds; the C-H⋯O hydrogen bonds exhibit R 2 (2)(14) ring motifs while the C-H⋯Cl hydrogen bonds link the mol-ecules into chains along the a-axis… (More)
In the title compound, C8H9NO5S, the dihedral angle between the benzene ring and the nitro group is 5.86 (15)° and the C-C-O-S group adopts an anti conformation [torsion angle = -168.44 (15)°]. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, generating a three-dimensional network.
In the title compound, C14H12Br2O, the dihedral angle between the aromatic rings is 2.7 (3)° and the Br atoms lie on the same side of the mol-ecule. No inter-molecular inter-actions occur in the crystal beyond van der Waals contacts.
The travel agency industry is characterized by many small businesses that have recently been under pressure from changing external factors including those in the technological and competitive environments as well as from the “customers” on both sides of their transactions -their clients and the service providers. This paper provides a theoretical basis and… (More)
The title compound, C16H26NO2 (+)·C7H5O2 (-), is a benzoate salt of the painkiller Tramadol. The six-membered cyclo-hexane ring of the cation adopts a slightly distorted chair conformation and carries OH and 3-meth-oxy-phenyl substituents at the 2-position and a protonated methyl-aza-niumylmethyl group at the 3-position. In addition, a weak intra-molecular… (More)
PURPOSE To report the magnitude and causes of unilateral absolute blindness (no light perception) and barriers faced by persons with unilateral blindness in the South Batinah region of Oman. METHODS Between January and June 2002, 12,000 patients were evaluated for visual acuity, ocular pressure, anterior ocular biomicroscopic examination, and posterior… (More)