Thiourea → HCID 21845600, compound
Reaction equation
[Br:1][CH2:2][C:3]([C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[O:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=O.[NH2:19][C:20]([NH2:22])=[S:21]>CO>[BrH:1].[CH2:12]([O:11][C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=1[C:3]1[N:19]=[C:20]([NH2:22])[S:21][CH:2]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
A solution of 21.7 g of 2-bromo-1-(2-benzyloxy-phenyl)-ethanone in 150 ml of methanol was treated at room temperature with 7.6 g of thiourea and boiled for 1 hour. The reaction mixture was concentrated to a volume of 60 ml. 20.7 g of 4-(2-benzyloxy-phenyl)-thiazol-2-ylamine hydrobromide separated as colorless crystals upon cooling to 0° C. and after the addition of 250 ml of diethyl ether.