Sulfuric Acid → HCID 12592804, 화합물

반응식

[CH3:1][C:2]1[C:10]([CH3:11])=[C:9]2[C:5]([C:6](=[O:13])[C:7](=[O:12])[NH:8]2)=[CH:4][CH:3]=1.S(OOS([O-])(=O)=O)([O-])(=O)=[O:15].[K+].[K+].S(=O)(=O)(O)O>>[CH3:11][C:10]1[C:9]2[NH:8][C:7](=[O:12])[C:6](=[O:13])[O:15][C:5]=2[CH:4]=[CH:3][C:2]=1[CH3:1]

참가 물질

반응물 3

HCID 1118Sulfuric Acid

HCID 24412Potassium Persulfate

HCID 18105116,7-dimethyl-2,3-dihydro-1H-indole-2,3-dione

생성물 1

HCID 12592804HCID 12592804, 화합물

실험 절차

35 parts of 6,7-dimethylisatin are introduced into a solution of 60 parts of potassium peroxydisulfate in 400 parts of 98% strength sulfuric acid at from 5° C. to 10° C. The mixture is then stirred for 10-20 minutes, after which it is poured onto ice. The product is filtered off and dried, giving 34 parts of 5,6-dimethyl-2,3-dioxo-1,4-benzoxazine, of melting point 278°-284° C. (with decomposition).