the utilization of hydroxy sodalite (h-sod) as catalyst under solvent-free condition is described for the efficient preparation of tetrahydrobenzo[b]pyrans. these compounds are synthesized by three-component reactions of aldehydes, alkylnitriles and dimedone. h-sod that is the waste-product of zeolite manufacturing process is used as an efficient and a very inexpensive catalyst. furthermore, it...

The Friedländer reactions of acetylbenzenes and 2-acetylpyridine with 3-aminonaphthalene-2-carbaldehyde afforded the corresponding 2-phenylbenzo[g]quinoline and 2-(pyrid-2-yl)benzo[g]quinoline, respectively. The same reactions of 3-aminonaphthalene-2-carbaldehyde with 1,2-, 1,3-, 1,4-di- and 1,3,5-triacetylbenzenes, however, afforded a series of corresponding (benzo[g]quinolin-2-yl)benzenes as ...

It has been found that certain urinary quinoline derivatives could be eluted from Dowex 50 (H+) columns by washing with a large volume of water (l-3). The present study concerns an examination of urine from normal swine and rabbits for various quinoline derivatives. Seven quinoline derivatives were identified in the urine of these two species, including two apparently new urinary products and t...

A series of novel quinoline-3-carboxamide derivatives 10-17 and 23-27 were designed and synthesized as cholesteryl ester transfer protein (CETP) inhibitors. All of them exhibited activity against CETP. Particularly, compounds 24 and 26 displayed the best activity against CETP with the same inhibitory rate of 80.1%.

In the title mol-ecule, C(28)H(20)Cl(2)N(2)O(2), the dihedral angle between the 2-chloro-quinoline and 6-chloro-quinoline rings is 7.55 (6)°. The dihedral angle between the phenyl ring and its attached quinoline ring is 62.59 (4)°. In the crystal, aromatic π-π stacking inter-actions [centroid-centroid distances = 3.771 (3) and 3.612 (3) Å] help to establish the packing.

Silicon containing pyridine and quinoline sulfides have been prepared using phase transfer catalytic system thiol/alkyl halide / solid KOH/18-crown-6 / toluene. The target S-ethers were isolated in yields up to 81%. The cytotoxicity of the synthesized compounds was studied. Among pyridine sulfides S-[3-(1-methyl- 1-silacyclohexyl)propyl] derivatives 5e and 6e exhibit the highest cytotoxicity. A...