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Triethylamine → 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-2-methoxy-1-methyl-ethyl]-amide

HRID 1873860
ノート
印刷プレビュー

反応式

HRID 1873860 の反応式
[F:1][CH:2]([F:12])[C:3]1[C:7]([C:8](Cl)=[O:9])=[CH:6][N:5]([CH3:11])[N:4]=1.[Cl:13][C:14]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:15]=1[CH:21]([O:25][CH3:26])[CH:22]([NH2:24])[CH3:23].C(N(CC)CC)C>ClCCl>[Cl:13][C:14]1[CH:19]=[C:18]([Cl:20])[CH:17]=[CH:16][C:15]=1[CH:21]([O:25][CH3:26])[CH:22]([NH:24][C:8]([C:7]1[C:3]([CH:2]([F:12])[F:1])=[N:4][N:5]([CH3:11])[CH:6]=1)=[O:9])[CH3:23]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 8471TriethylamineHCID 153401103-(Difluoromethyl)-1-methyl-1 H-pyrazole-4-carbonyl chlorideHCID 594032951-(2,4-Dichlorophenyl)-1-methoxypropan-2-amine

生成物 1

HCID 251028333-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-2-methoxy-1-methyl-ethyl]-amide収率 43.3%

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒
2 回

実験手順

A solution of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carbonyl chloride (195 mg, 1.0 mmol) in dichloromethane (2 ml) was added dropwise to a stirred solution of (234 mg, 1.0 mmol) 2-(2,4-dichloro-phenyl)-2-methoxy-1-methyl-ethylamine, which was prepared as described in example P2, and triethylamine (202 mg, 2.0 mmol) in dichloromethane (6 ml) at 0° C. The reaction mixture was stirred for 1 hr at ambient temperature then allowed to stand for 4 h. After removal of the solvent the residue was purified by flash chromatography over silica gel (eluant:hexane/ethyl acetate 1:1). 170 mg (43% of theory) of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-2-methoxy-1-methyl-ethyl]-amide was obtained in the form of a resin as a mixture of diastereomeres.

後処理

  1. customwas prepared
  2. waitto stand for 4 h
  3. customAfter removal of the solvent the residue
  4. customwas purified by flash chromatography over silica gel (eluant:hexane/ethyl acetate 1:1)

出典と根拠

ORDレコード
ord-ee2a128e656844b993f14595375ffef9
出典データセット
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08304444B2

反応ノート

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