Benzylamine → HCID 42646188, compound

Participants

Reaction Steps

A solution of 0.7 g of 2-ethoxy-8-nitro-6-(trifluoromethyl)-4H-1,3-benzothiazin-4-one in 15 ml acetic acid was treated with 0.4 ml of benzylamine and refluxed for 14 h. The reaction mixture was evaporated and the residue was treated by 10 ml water, the yellow precipitate was filtered off and washed with 50 ml water. Pure final product was obtained after recrystallization twice from ethanol/DMF. 2-(Benzylamino)-8-nitro-6-(trifluoromethyl)-4H-1,3-benzothiazin-4-one is a light yellow crystalline solid. Yield 73%. mp 192-194° C.

Provenance & Evidence