Ethyl p-methylbenzenesulfonate → 2-Amino-3-ethyl-6-methoxybenzothiazolium p-toluenesulfonate
反応式
[NH2:1][C:2]1[S:3][C:4]2[CH:10]=[C:9]([O:11][CH3:12])[CH:8]=[CH:7][C:5]=2[N:6]=1.[C:13]1([CH3:25])[CH:18]=[CH:17][C:16]([S:19]([O:22]CC)(=[O:21])=[O:20])=[CH:15][CH:14]=1>CC(C)=O>[C:13]1([CH3:25])[CH:14]=[CH:15][C:16]([S:19]([O-:22])(=[O:20])=[O:21])=[CH:17][CH:18]=1.[NH2:1][C:2]1[S:3][C:4]2[CH:10]=[C:9]([O:11][CH3:12])[CH:8]=[CH:7][C:5]=2[N+:6]=1[CH2:13][CH3:14]参加物
4
実験手順
In a 200 ml three-necked flask were placed 3.6 g of 2-amino-6-methoxybenzothiazole and 6.0 g of ethyl p-toluenesulfonate, and the mixture was stirred at 120° C. for 3 hours. To the resulting mixture was added acetone and the mixture was stirred at room temperature for 1 hour. The crystals were filtered under reduced pressure and washed with acetone to give the desired compound.