In the title mol-ecule, C(23)H(14)N(4)O, the dihedral angle between the pyridine rings of the phenanthroline unit is 4.43 (8)° and the dihedral angle formed by the nine essentially planar [maximum deviation 0.0389 (16)Å] non-H atoms of the benzimidazole unit and the naphthalene ring system is 74.22 (5)°. In the crystal, mol-ecules are linked by inter-molecular N-H⋯N and O-H⋯N hydrogen bonds, fo...

Reaction mechanisms for the initial stages of naphthalene oxidation at high temperatures (T ≥ 600 K) have been studied theoretically using density functional theory along with various exchange-correlation functionals, as well as the benchmark CBS-QB3 quantum chemical approach. These stages correspond to the removal of hydrogen atoms by hydroxyl radical and the formation thereby of 1- and 2-naph...

The title compound {systematic name: [8-(4-aminobenzoyl)-2,7-dimethoxynaphthalen-1-yl](4-aminophenyl)methanone}, C(26)H(22)O(4)N(2), possesses crystallographically imposed twofold symmetry, with two C atoms lying on the rotation axis. In the crystal, the mol-ecules inter-act through inter-molecular N-H⋯O hydrogen bonds between the amino and meth-oxy groups on the naphthalene ring systems and N-...

Pseudomonas stutzeri strain B1SMN1 is a naphthalene-degrading and simultaneously nitrogen-fixing strain isolated from a wastewater sample taken at a lagooning treatment plant in Menorca (Balearic Islands, Spain). Here we report the draft genome sequence of P. stutzeri B1SMN1. It is composed of a chromosome of an estimated size of 5.2 Mb and two plasmids of 44,324 bp and 56,118 bp.

The complexes IPrMCl (IPr = 1,3-bis(diisopropylphenyl)imidazol-2-ylidene, M = Cu, 1a; M = Au, 1b), in the presence of one equiv of NaBAr'(4) (Ar' = 3,5-bis(trifluoromethyl)phenyl), catalyze the transfer of carbene groups: C(R)CO(2)Et (R = H, Me) from N(2)C(R)CO(2)Et to afford products that depend on the nature of the metal center. The copper-based catalyst yields exclusively a cycloheptatriene ...

In the title compound, C(22)H(16)N(2)O(3), the naphthalene ring, the 1,4-dihydro-pyridine ring and the cyclo-pent-2-enone ring are nearly coplanar, with the dihedral angles between the neighbouring rings being 1.93 (11) and 2.30 (9)°, respectively. The benzene ring group at position 7 and the 1,4-dihydro-pyridine ring form a dihedral angle of 78.75 (4)°. Inter-molecular N-H⋯O hydrogen bonds and...

The title compound, C17H14Cl4N5OP3, is a spiro-phosphazene derivative with bulky naphthalene and pyridine rings. The phosphazene and the six-membered N/O rings are in flattened-boat and twisted-boat conformations, respectively. The naphthalene ring system and the pyridine ring are oriented at a dihedral angle of 18.06 (8)°. In the crystal, weak π-π stacking between the pyridine rings and betwee...

A series of novel naphthalene attached bis-oxazines were synthesized and characterized. The bis-oxazines were studied by VT-NMR analysis to assess the possibility of conformational twist. The bis-oxazine prepared from (l)-methylvalinate show a helical conformational twist in the single crystal X-ray analysis. Three isomers of bis-oxazines were prepared from chiral α-methylbenzyl amines, the mes...

Conditions have been developed for the reductive cross-coupling of 3-bromo-2,1-borazaronaphthalenes with primary and secondary alkyl iodides. This method allows direct alkylation of azaborine cores, providing efficient access to functionalized isosteres of naphthalene derivatives.

The solvatochromic fluorescence properties of 8-(phenylamino)-l-naphthalene-ammoniumsulfonate (1) were investigated in 22 pure solvents of rising polarity. The measurements of both Stokes’ shifts and intensities discriminated between protic and aprotic solvents. Fairly good linear correla­ tion plots of the dependence could be obtained on neglection of the values of tert.-butanol, D M F and DM SO.