تفاعل #54399

معادلة التفاعل

α-(2-benzoyloxy-5-sulfonylphenylazo)-β-benzoyloxycinnamonitrile

dimethylformamide

thionyl chloride

→

α-(2-Benzoyloxy-5-chlorosulfonylphenylazo)-β-benzoyloxycinnamonitrile

ظروف التفاعل

المعالجة

1. 1
   أخرىThe solvent was evaporated to dryness under vacuum at room temperature
2. 2
   workup.ADDITIONThe residue was diluted with ethyl ether (50 ml)
3. 3
   أخرىto form a white precipitate
4. 4
   ترشيحThe product was filtered off
5. 5
   أخرىdried
6. 6
   أخرىto yield 9.4 g, m.p. 153° to 155° C.

الإجراء التجريبي

To a solution of α-(2-benzoyloxy-5-sulfonylphenylazo)-β-benzoyloxycinnamonitrile (10 g) in 50 ml of thionyl chloride was added 3 ml of dimethylformamide. The reaction mixture was allowed to stir at room temperature for 31/2 hours. The solvent was evaporated to dryness under vacuum at room temperature. The residue was diluted with ethyl ether (50 ml) to form a white precipitate. The product was filtered off and dried to yield 9.4 g, m.p. 153° to 155° C.

المصدر