2-Methoxy-5-[(methylamino)methyl]phenol → (4Z)-6-bromo-4-{[(3-hydroxy-4-methoxybenzyl)(methyl)amino]methylene}isoquinoline-1,3(2H,4H)-dione

Participants

Reaction Steps

(4E)-6-Bromo-4-(methoxymethylene)isoquinoline-1,3(2H,4H)-dione (0.15 g, 0.53 mmol) and 2-methoxy-5-methylaminomethyl-phenol (80 mg, 0.48 mmol) were stirred in tetrahydrofuran (10 mL) at room temperature. The reaction mixture is concentrated under reduced pressure. The solid material is then collected, washed with diethyl ether, water, and methanol, and then dried under vacuum to give (4Z)-6-bromo-4-{[(3-hydroxy-4-methoxybenzyl)(methyl)amino]methylene}isoquinoline-1,3(2H,4H)-dione as a yellow solid (0.19 g, 95%).

Provenance & Evidence