Methyl p-toluenesulfonate → 2,5-Dimethyl-3,6-diphenyl-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione
反応式
O=[C:2]1[C:6]2[C:7]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)=[N:8][C:9](=[O:10])[C:5]=2[C:4]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[N:3]1.[C:23](=[O:26])([O-])[O-].[K+].[K+].[C:29]1(C)C=CC(S(OC)(=O)=O)=CC=1.[N+](C1C=CC=CC=1)([O-])=O>>[O:10]=[C:9]1[C:5]2=[C:4]([C:17]3[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=3)[N:3]([CH3:2])[C:23](=[O:26])[C:6]2=[C:7]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[N:8]1[CH3:29]参加物
5
反応条件
- 温度
- 20 °C
実験手順
14.5 Parts of 1,4-diketo-3,6-diphenylpyrrolo-[3,4-c]-pyrrole, 15 parts of anhydrous potassium carbonate, 40 parts of methyl p-toluenesulfonate and 170 parts of dry nitrobenzene are heated at 200°-205° C. for one hour, with stirring. After cooling to 20° C., the 1,4-diketo-2,5-dimethyl-3,6-diphenylpyrrolo-[3,4-c]-pyrrole obtained is filtered off, washed with toluene, then methanol and thereafter with hot water and dried. 10.85 parts of orange crystals of the compound of the formula (IX) are obtained (melting point 236°-238° C.). ##STR13##
出典と根拠
- ORDレコード
- ord-2da64ae9f4614353996865b5ac2fb8f7
- 出典データセット
- uspto-grants-1987_05
- 特許番号
- US04666455
反応ノート
読み込み中…