Three naphtol derivativesweresynthesized using several strategies; in first stage, was synthetized the compound 4(1-[(2-Amino-ethylamino)-phenyl-methyl]-naphthalen-2-ol) using the three-component system (β-naphtol, benzaldehyde and ethylenediamine).The secondstage involves the synthesis of1-{[2-Hex-1-ynyl-phenyl-amino)-ethylamino]-phenyl-methyl}-naphtalen2-ol (6) by the reaction of 4 with 1-hex...

In the title compound, [HgI(2)(C(23)H(14)N(4)O)], the Hg(II) atom is four-coordinated by two N atoms from one 1-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol ligand and by two I atoms in a distorted tetra-hedral environment. An intra-molecular O-H⋯N hydrogen bond stabilizes the mol-ecular conformation and an inter-molecular N-H⋯I inter-action stabilizes the crystal packing.

We have synthesized four novel derivatives of podophyllotoxin, the chalcone derivatives namely 2benzylidene-6,7-dimethoxy-4-phenyl-3,4-dihydro-2H-naphthalen-1-one (4a), 2-benzylidene-5,7-dichloro-6hydroxy-4-phenyl-3,4-dihydro-2H-naphthalen-1-one(4b), and the amino-thiazolyl derivatives namely7,8dimethoxy-5-phenyl-4,5-dihydro-naphtha[1,2-d] thiazol-2-yl amine (5a) and 2-amino-6,8-dichloro-5-phen...

The complete mol-ecule of the title compound, C22H16N2O2, is generated by a crystallographic inversion centre at the mid-point of the central N-N bond. Two intra-molecular O-H⋯N hydrogen bonds occur.

In the crystal structure of the title compound, C(33)H(32)BrNO(2), the naphthalene ring system and the benzene ring are oriented at dihedral angles of 82.24 (4) and 79.53 (4)°, respectively, to the quinoline ring system. An intra-molecular O-H⋯N hydrogen bond occurs between the hydr-oxy H atom and the amine N atom.

The title compound, C18H11BrF3NO2, crystallizes in the phenol-imine tautomeric form, with a strong intra-molecular O-H⋯N hydrogen bond. The dihedral angle between the naphthalene ring system and the benzene ring is 28.54 (10)°.

Two dinuclear [Ni2L2(o-(NO2)C6H4COO)2(H2O)] (1), [Ni2L2(p-(NO2)C6H4COO)2(H2O)]·0.5CH3OH (2) complexes and one trinuclear [Ni3L2(p-(NO2)C6H4COO)4]·C2H5OH (3) Ni(II) complex have been synthesized using a tridentate Schiff base ligand, 1-[(3-dimethylamino-propylimino)-methyl]-naphthalen-2-ol (HL) along with ortho- and para-nitro benzoate as co-ligands. All these three (1-3) complexes have been cha...