Dichloromethane → HCID 22397175, compound

Participants

Reaction Steps

N-Bromosuccinimide (0.239 g) and methyl 1,6-dimethyl-1H-4,1,2-benzothiadiazine-3-carboxylate 4,4-dioxide (Preparation 40, 0.30 g) are dissolved in dichloroethane (100 mL). The solution is exposed to light from a 650W sunlamp with stirring for 25 minutes. The solvent is evaporated and the crude solid obtained is dissolved in DMF (8 mL). Morpholine (0.43 g) is added and the mixture is stirred for 3 hours. The mixture is poured into CH2Cl2 (200 mL) and washed with water (3×200 mL). The organic layer is dried with Na2SO4, filtered and the solvent evaporated. The crude solid is chromatographed with MeOH/CH2Cl2 (1-5%) to obtain 0.23 g (59%) of the title compound as an off-white solid. Physical characteristics: MS (ESI+) m/z 254 (M+H).

Provenance & Evidence