2,4-Difluorophenylboronic acid → HCID 69560709, compound
Reaction equation
Cl[C:2]1[N:7]=[C:6]([C:8]2[N:12]3[CH:13]=[CH:14][C:15]([C:17]([CH3:27])([O:19][Si:20]([CH2:25][CH3:26])([CH2:23][CH3:24])[CH2:21][CH3:22])[CH3:18])=[N:16][C:11]3=[N:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1.[F:28][C:29]1[CH:34]=[C:33]([F:35])[CH:32]=[CH:31][C:30]=1B(O)O>>[F:28][C:29]1[CH:34]=[C:33]([F:35])[CH:32]=[CH:31][C:30]=1[C:2]1[N:7]=[C:6]([C:8]2[N:12]3[CH:13]=[CH:14][C:15]([C:17]([CH3:27])([O:19][Si:20]([CH2:25][CH3:26])([CH2:23][CH3:24])[CH2:21][CH3:22])[CH3:18])=[N:16][C:11]3=[N:10][CH:9]=2)[CH:5]=[CH:4][N:3]=1Participants
3
Procedure
3-(2-Chloropyrimidin-4-yl)-7-(1-methyl-1-triethylsilanyloxyethyl)-imidazo[1,2-α]pyrimidine (250 mg, 0.62 mmol) and 2,4-difluorobenzeneboronic acid (196 mg, 1.24 mmol) were reacted together as described in Example 61. Purification by column chromatography on silica using 2.5% MeOH/CH2Cl2 gave 3-[2-(2,4-difluorophenyl)pyrimidin-4-yl]-7-(1-methyl-1-triethylsilanyloxyethyl)imidazo[1,2-α]pyrimidine: m/z (ES+) 482 (M+H+).
Workup
- customPurification by column chromatography on silica using 2.5% MeOH/CH2Cl2
Sources & evidence
- ORD record
- ord-636ad22244c14a00952c09b0c7cfc338
- Source dataset
- uspto-grants-2006_04
- Patent number
- US07030128B2
Reaction notes
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