an efficient and direct procedure for the synthesis of benzo[h]-indeno[1,2-b]-quinoline derivatives has been described. the procedure employs a three-component condensation reaction in one-pot using 2h-indene-1, 3-dione, naphthalen-1-amine,and aldehydes in the presence of catalytic amount of l-prolinein aqueous media.

In the crystal structure of the title compound, C(10)H(10)N(+)·Cl(-), the two components are connected via N-H⋯Cl hydrogen bonds, forming a layer parallel to the bc plane.

THE TITLE COMPOUND [SYSTEMATIC NAME: N,N-diethyl-2-(naphthalen-1-yl-oxy)propanamide], C17H21NO2, crystallizes with two independent mol-ecules in the asymmetric unit in which the dihedral angles between the naphthalene ring systems and the amide groups are 88.1 (9) and 88.7 (3)°. Four C-H⋯O hydrogen bonds stabilize the crystal structure.

IN THE STRUCTURE OF THE TITLE COMPOUND [SYSTEMATIC NAME: 1-(naphthalen-2-yl)ethanone], C(12)H(10)O, the acetyl group is approximately coplanar with the naphthalene ring with a C(ar)-C(ar)-C=O torsion angle of 5.8 (2)°. In the crystal, the mol-ecules are packed in a classic herringbone arrangement typical for aromatic polycycles such as penta-cene. They are also linked by weak end-to-end C-H⋯O i...

A systematic study on the condensation reaction of 2,4-dichlorobenzo[h]quinoline and naphth-1-ylamine in the presence of CuI as catalyst to functionalised mono- and di-substituted (naphthalen-1-yl)benzo[h]quinoline amines was described. Subsequently these mono- and di-substituted amines on polyphosphoric acid catalysed cyclisation reaction with aromatic/heteroaromatic carboxylic acids led to th...

The title compound, C(28)H(19)NO(2), was synthesized by the reaction of 1,3-benzodioxole-5-carbaldehyde with naphthalen-2-amine catalyzed by thio-salicylic acid in acetic acid. The central dihydropyridine ring adopts a boat conformation. The two planar (r.m.s. deviations = 0.0158 and 0.0552 Å) bicyclic parts make a dihedral angle of 16.16 (5)° with respect to each other. The crystal packing is ...