[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH2:8])=[C:4]([NH:9][CH:10]2[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]2)[CH:3]=1.N[C:17](N)=[O:18]>CC1C=CC(C)=C(C)C=1C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]2[NH:8][C:17](=[O:18])[N:9]([CH:10]3[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]3)[C:4]=2[CH:3]=1A mixture of 4.5 g of the compound obtained in Step B), 2.5 g of urea and 10 ml of 1,2,3,4-tetramethylbenzene is heated to 170°-180° C. for 90 minutes.
Wird geladen…