反应详情

温度

90 °C

With the exclusion of moisture, 100 mg (0.825 mmol) of 3,5-dimethyl-aniline are dissolved in 4 ml of ethanol, and 196 μl (0.784 mmol) of HCl (4N in dioxane) are added. After the addition of 200 mg (0.785 mmol) of 1-chloro-4-[(pyridin-4-yl)-methyl]-isoquinoline, the mixture is heated for 8 hours at 90° C. Concentration by evaporation is then carried out; the residue is taken up in 4 ml of water, 1 ml of saturated ammonia solution and 20 ml of CH2Cl2, and the organic phase is separated off, dried with Na2SO4 (anhydrous) and concentrated by evaporation again. Column chromatography (SiO2; ethyl acetatelhexane 3:1) and crystallisation from ethyl acetate/hexane yield the title compound: m.p. 156-158° C.; 1H NMR (DMSO-d6) 9.00 (s, HN), 8.54 (d, 1H), 8.42 (d, 2H), 8.00 (s, 1H), 7.80 (d, 1H), 7.65 (m, 2H), 7.50 (s, 2H), 7.26 (d, 2H), 6.64 (s, 1H), 4.25 (s, 2H), 2.27 (s, 6H); FAB-MS: (M+H)+=340; Anal. calc. (C23H21N3.0.1H2O) C 80.95%, H 6.26%, N 12.31%; found C 80.9%, H 6.2%, N 12.4%.

1. concentrationConcentration
2. customby evaporation
3. custom1 ml of saturated ammonia solution and 20 ml of CH2Cl2, and the organic phase is separated off
4. dry with materialdried with Na2SO4 (anhydrous)
5. concentrationconcentrated by evaporation again
6. customColumn chromatography (SiO2; ethyl acetatelhexane 3:1) and crystallisation from ethyl acetate/hexane