反应详情

温度

115 °C

To a suspension of 4-[(4-Hydroxymethyl-phenylamino)-methylene]-4H-isoquinoline-1,3-dione (294 mg, 1 mmol) in N,N-dimethylformamide (10 mL) is added methanesulfonyl chloride (0.77 mL, 10 mmol) and triethylamine (2.79 mL, 20 mmol). The reaction mixture is shaken at 115° C. for 1.5 hours. The crude product, methanesulfonic acid 4-[(1,3-dioxo-2,3-dihydro-1H-isoquinolin-4-ylidenemethyl)-amino]-benzyl ester (304 mg), thus obtained is used as such for the next reaction.