Formaldehyde → 5-IMIDIZOLIDINONE, 1-(o-CHLORO-p-SULFAMOYLPHENYL)-3-PHENYL-
Reaction equation
[C:1]1([NH:7][CH2:8][C:9]([NH:11][C:12]2[CH:17]=[CH:16][C:15]([S:18](=[O:21])(=[O:20])[NH2:19])=[CH:14][C:13]=2[Cl:22])=[O:10])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[CH2:23]=O>C(O)C.O>[C:1]1([N:7]2[CH2:8][C:9](=[O:10])[N:11]([C:12]3[CH:17]=[CH:16][C:15]([S:18](=[O:21])(=[O:20])[NH2:19])=[CH:14][C:13]=3[Cl:22])[CH2:23]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
2-Phenylamino-N-(2-chloro-4-sulphamoylphenyl)-acetamide (34.0g) was dissolved in ethanol (300 ml) and paraformaldehyde (6.0g) in water (600 ml) added. The mixture was refluxed 4 hours, cooled and worked up as in Example 2(c) to yield 20 g m.p. 206°