Structural comparisons of isomeric series of 7-aryl-benzo[h]pyrazolo [3,4-b]quinolines and 11-aryl-benzo[f]pyrazolo[3,4-b] quinolines

摘要

The structures of three new 7-aryl-benzo[h] pyrazolo[3,4-b]quinolines, 8-methyl-7-(4-chlorophenyl)-10-phenyl-6,10-dihydro-5H-benzo[h] pyrazolo[3,4-b]quinoline, C27H20ClN3, 8-methyl- 7-(3-pyridinyl)-10-phenyl-6,10-dihydro-5H-benzo[b]pyrazolo[3,4-b] quinoline, C26H20N4, and 8-methyl-7-(4-pyridinyl)10-phenyl-10H-benzo[h]pyrazolo[3,4-b]quinoline, C26H18N4, which is an unexpected oxidation product isolated from the attempted synthesis of 8-methyl-7-(4-pyridinyl)-10-phenyl-6,10-dihydro-5H-benzo[h]pyrazolo[3,4- b] quinoline, and those of three new 11-arylbenzo[f]pyrazolo[3,4-b]quinolines, 11-(4-methylphenyl)-10-methyl-8-phenyl-6,8-dihydro-5H-benzo[f]pyrazolo[3,4-b]quinoline, C28H23N3 (P similar to