Sodium Hydroxide → HCID 22624060, compound

Participants

Reaction Steps

A solution of excess dimethylthiocarbamoyl chloride in DMF (20 mL) was added to a mixture of 2-benzyloxy-5-hydroxy-benzo[de]isoquinoline-1,3-dione (3.5 g, 11.0 mmol) and sodium hydroxide (0.9 g, 22 mmol) in water (50 mL) at 0° C. The mixture was stirred vigorously at room temperature for 2 hours. The solid formed was filtered, washed with water, and dried. The crude product (0.5 g) was purified by column chromatography (silica gel using 2% methanol in chloroform). Fractions containing the target compound were combined, concentrated, and recrystallized from chloroform:ether mixture to give 0.3 g of the title compound, mp 211-214° C.;

Provenance & Evidence