中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5-amino-2,4-dichloro-8-methylquinoline | 1392408-86-4 | C10H8Cl2N2 | 227.093 |
—— | 4-chloro-8-methylquinolin-2-ylamine | 350599-49-4 | C10H9ClN2 | 192.648 |
—— | 4-chloro-8-methylquinolin-2(1H)-thione | 328288-80-8 | C10H8ClNS | 209.699 |
—— | 4-chloro-8-methylquinolin-2(1H)-one | 113226-20-3 | C10H8ClNO | 193.633 |
—— | 2,4-dichloro-8-methyl-5-nitroquinoline | 1392408-84-2 | C10H6Cl2N2O2 | 257.076 |
—— | 2-chloro-4-hydrazino-8-methylquinoline | 350599-41-6 | C10H10ClN3 | 207.662 |
The reaction of 2,4-dichloroquinolines with 2-amino-5-chlorobenzophenone yielded 2-[(2-benzoyl-4-chlorophenyl) amino]-4-chloroquinolines which with sodium methoxide afforded 2-[(2-benzoyl-4-chlorophenyl)amino]-4-methoxyquinolines. These on PPA-catalysed cyclisation gave 2-chloro-12-phenyldibenzo[ b,g][1,8]naphthyridin-11(6 H)-ones. Temperature differences for the formation of the final products were due to the in situ formation of the 2-[(2-benzoyl-4-chlorophenyl)amino]quinolin-4-ones from the chloro and methoxy intermediates. The dibenzonaphthyridin-11-ones were N-methylated at N(6); a methyl group at C(7) was found to hinder the methylation reaction sterically, when a considerably longer reaction time was needed.