Potassium Carbonate → phenyl 3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate

HRID 1917935ノート

反応式

HRID 1917935 の反応式
[F:1][CH2:2][C:3]([C:7]1[CH:11]=[C:10]([NH2:12])[N:9]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[N:8]=1)([CH3:6])[CH2:4][F:5].C([O-])([O-])=O.[K+].[K+].Cl[C:26]([O:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)=[O:27]>C1COCC1>[F:5][CH2:4][C:3]([C:7]1[CH:11]=[C:10]([NH:12][C:26](=[O:27])[O:28][C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[N:9]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[N:8]=1)([CH3:6])[CH2:2][F:1]

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 15891Phenyl chloroformateHCID 668762133-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-amine

生成物 1

HCID 66876857phenyl 3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate収率 103.3%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

According to the procedure described in Example 161C, to a solution of 3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-amine (0.75 g, 2.98 mmol) in THF (25 mL) and K2CO3 (1.037 g, 7.5 mmol), was added phenyl chloroformate (0.548 g, 3.5 mmol). The crude product was purified by silica gel chromatography (with 10-25% EtOAc/hexane as eluants) to afford phenyl 3-(1,3-difluoro-2-methylpropan-2-yl)-1-phenyl-1H-pyrazol-5-ylcarbamate as solid (1.143 g, 100%). 1H NMR (300 MHz, CDCl3) δ 7.5 (m, 3H), 7.4 (m, 4H), 7.2 (m, 4H), 6.6 (s, 1H), 4.75 (q, 2H), 4.55 (q, 2H), 1.4 (s, 3H); LC-MS (ESI) m/z 372 (M+H)+.

後処理

  1. customThe crude product was purified by silica gel chromatography (with 10-25% EtOAc/hexane as eluants)

出典と根拠

ORDレコード
ord-a242d9a4451c4f43b1e4274db8b8e653
出典データセット
uspto-grants-2013_12
特許番号
US08618289B2

反応ノート

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