[F:1][CH2:2][CH2:3][N:4]1[N:8]=[C:7]([C:9]2[CH:14]=[CH:13][C:12]([CH3:15])=[CH:11][CH:10]=2)[N:6]=[N:5]1.[Br:16]N1C(=O)CCC1=O.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[F:1][CH2:2][CH2:3][N:4]1[N:8]=[C:7]([C:9]2[CH:14]=[CH:13][C:12]([CH2:15][Br:16])=[CH:11][CH:10]=2)[N:6]=[N:5]1Under a light source a stirred solution of 2.8 grams (0.013 mole) of 1-(2-fluoroethyl)-4-(4-methylphenyl)-1,2,3,5-(1H)-tetrazole, 2.4 grams (0.013 mole) of N-bromosuccinimide, and 0.19 gram (0.0008 mole) of benzoyl peroxide in 100 mL of carbon tetrachloride was heated to reflux. Once at reflux the reaction mixture was stirred for five hours. After this time the heat source was removed and the reaction mixture was stirred for about 18 hours. At the conclusion of this period the reaction mixture was filtered, and the filtrate was concentrated under reduced pressure, yielding 0.59 gram of 4-[1-(2-fluoroethyl)-1,2,3,5-(1H)-tetrazol-4-yl]benzyl bromide. The NMR spectrum was consistent with the proposed structure.
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