[CH3:1][S:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[C:5]([NH:15][C:16]([NH2:18])=S)[CH:4]=1.[OH-].[K+].O.O.O.C([O-])(=O)C.[Pb+2].C([O-])(=O)C>O>[CH3:1][S:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=2)=[C:5]([NH:15][C:16]#[N:18])[CH:4]=1A mixture of N-(4-methylthio-2-biphenylyl)thiourea (9.6 g), potassium hydroxide (8.5 g), lead acetate trihydrate (12.5 g) and water (165 ml) was heated at 90°-95° C. for 30 minutes to give 4-methylthio-2-biphenylylcyanamide.
Wird geladen…