4-(Bromomethyl)-1,2-difluorobenzene → 3-(4-Chloro-phenyl)-1-(3,4-difluoro-benzyl)-1,4,5,6,7,8-hexahydro-1,2,5-triaza-azulene
Reaction equation
C(OC([N:8]1[CH2:17][CH2:16][CH2:15][C:14]2[NH:13][N:12]=[C:11]([C:18]3[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=3)[C:10]=2[CH2:9]1)=O)(C)(C)C.[F:25][C:26]1[CH:27]=[C:28]([CH:31]=[CH:32][C:33]=1[F:34])[CH2:29]Br>>[Cl:24][C:21]1[CH:20]=[CH:19][C:18]([C:11]2[C:10]3[CH2:9][NH:8][CH2:17][CH2:16][CH2:15][C:14]=3[N:13]([CH2:29][C:28]3[CH:31]=[CH:32][C:33]([F:34])=[C:26]([F:25])[CH:27]=3)[N:12]=2)=[CH:23][CH:22]=1Participants
3
Procedure
The title compound (0.005 g) was prepared from 3-(4-chloro-phenyl)-4,6,7,8-tetrahydro-1H-1,2,5-triaza-azulene-5-carboxylic acid tert-butyl ester (Example 59, Step C; 0.07 g) using 3,4-difluorobenzyl bromide (0.06 g) in place of benzyl chloride in Example 59, Step D. MS (ESI): exact mass calculated for C20H18ClF2N3, 373.12; found, m/z 374.1 [M+H]+. 1H NMR (500 MHz, CD3OD): 7.39-7.34 (m, 4H), 7.16-7.10 (m, 1H), 6.98-6.97 (m, 1H), 6.89-6.88 (m, 1H), 5.27 (s, 2H), 3.81 (s, 2H), 3.09-3.06 (m, 2H), 2.80-2.76 (m, 2H), 1.75-1.70 (m, 2H).
Sources & evidence
- ORD record
- ord-79b827bebcb24932a1541aa5135c8ca1
- Source dataset
- uspto-grants-2008_07
- Patent number
- US07402680B2
Reaction notes
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