Trifluoroacetic acid → 1-(5-Trifluoromethyl-[1,3,4]thiadiazol-2-yl)-piperazine trifluoroacetate
Reaction equation
C(OC([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[S:15][C:16]([C:19]([F:22])([F:21])[F:20])=[N:17][N:18]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.[F:23][C:24]([F:29])([F:28])[C:25]([OH:27])=[O:26]>ClCCl>[F:23][C:24]([F:29])([F:28])[C:25]([OH:27])=[O:26].[F:22][C:19]([F:20])([F:21])[C:16]1[S:15][C:14]([N:11]2[CH2:12][CH2:13][NH:8][CH2:9][CH2:10]2)=[N:18][N:17]=1Participants
4
Procedure
0.83 mmol 4-(5-trifluoromethyl-[1,3,4]thiadiazol-2-yl)-piperazine-1-carboxylic acid tert-butyl ester in 10 ml of dichloromethane was treated with 6.6 mmol trifluoroacetic acid and stirred for 2 hours at room temperature. The reaction mixture is concentrated to give the title compound as yellowish gum. MS (m/e): 239.1 (M+H+, 100%).