3,4-Dichloroaniline → HCID 178518005、化合物
反応式
[Br:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9](Cl)[N:8]=[C:7]2[OH:13].[Cl:14][C:15]1[CH:16]=[C:17]([CH:19]=[CH:20][C:21]=1[Cl:22])[NH2:18]>CN1CCCC1=O>[Cl:14][C:15]1[CH:16]=[C:17]([NH:18][C:9]2[N:8]=[C:7]([OH:13])[C:6]3[C:11](=[C:2]([Br:1])[CH:3]=[CH:4][CH:5]=3)[N:10]=2)[CH:19]=[CH:20][C:21]=1[Cl:22]参加物
4
実験手順
A solution of 8-bromo-2-chloroquinazolin-4-ol (0.37 g) and 3,4-dichloroaniline (0.69 g) in 1-methyl-2-pyrrolidinone (8 mL) was heated at 140° C. for 3 h. The mixture was then cooled to room temperature and poured onto ice/water (100 mL). The precipitate which formed was isolated by filtration, washed sequentially with water and diethyl ether, then was dried in vacuo to afford the title compound (0.46 g). 1H NMR (300 MHz, DMSO-d6): δ11.14 (s, 1H), 9.22 (s, 1H), 8.80 (d, J=2.4 Hz, 1H), 8.04 (d, J=7.8 Hz, 1H), 7.99 (d, J=7.8 Hz, 1H), 7.57-7.51 (m, 2H), 7.20-7.18 (m, 1H). HPLC Method B: 9.90 min. MS (APCI+): m/z 386, 388. (APCI−): m/z 384, 386. The starting material 8-Bromo-2-chloroquinazolin-4-ol was prepared as follows: