[F:1][C:2]([F:13])([F:12])[CH2:3][O:4][C:5]1[CH:11]=[CH:10][C:8]([NH2:9])=[CH:7][CH:6]=1.[S-:14][C:15]#[N:16].[K+].BrBr>C(O)(=O)C>[F:1][C:2]([F:12])([F:13])[CH2:3][O:4][C:5]1[CH:11]=[CH:10][C:8]2[N:9]=[C:15]([NH2:16])[S:14][C:7]=2[CH:6]=1The procedure is as in Example 1, starting with 4-(2,2,2-trifluoroethoxy)aniline, potassium thiocyanate and bromine in acetic acid, to obtain 6-(2,2,2-trifluoroethoxy)-2-benzothiazolamine, m.p. 134° C.
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