Triethylamine → 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid (7-chloro-1,2,3,4-tetrahydro-naphthalen-1-yl)-methoxy-amide

HRID 241502ノート

反応式

HRID 241502 の反応式
[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][CH2:8][CH:9]2[NH:12][O:13][CH3:14])=[CH:4][CH:3]=1.C(N(CC)CC)C.[F:22][CH:23]([F:33])[C:24]1[C:28]([C:29](Cl)=[O:30])=[CH:27][N:26]([CH3:32])[N:25]=1>ClCCl.O>[Cl:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][CH2:8][CH:9]2[N:12]([O:13][CH3:14])[C:29]([C:28]2[C:24]([CH:23]([F:33])[F:22])=[N:25][N:26]([CH3:32])[CH:27]=2)=[O:30])=[CH:4][CH:3]=1

参加物

6

反応物 3

HCID 8471TriethylamineHCID 153401103-(Difluoromethyl)-1-methyl-1 H-pyrazole-4-carbonyl chlorideHCID 86699875N-(7-chloro-1,2,3,4-tetrahydro-naphthalen-1-yl)-O-methyl-hydroxylamine

生成物 1

HCID 866998743-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid (7-chloro-1,2,3,4-tetrahydro-naphthalen-1-yl)-methoxy-amide収率 91.8%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6344Dichloromethane溶媒2 回

反応条件

温度
22 °C

実験手順

To a stirred solution of N-(7-chloro-1,2,3,4-tetrahydro-naphthalen-1-yl)-O-methyl-hydroxylamine (0.60 g; 2.80 mmol), prepared as described in example P1b and triethylamine (0.80 ml; 5.70 mmol) in dichloromethane (10 ml) under nitrogen at 15° C. was added dropwise 3-difluoromethyl-1-methyl-1H-pyrazole-4-carbonyl chloride (0.545 g; 2.80 mmol) in dichloromethane (5 ml). The reaction mixture was stirred at 22° C. for 14 h under nitrogen. The mixture was poured in water and extracted three times with dichloromethane. Combined organics were dried over sodium sulfate and the solvent was removed in vacuo. The crude was subject to flash chromatography (eluant: c-hexane/ethyl acetate 60:40) to afford 0.95 g (91% of theory) of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid (7-chloro-1,2,3,4-tetrahydro-naphthalen-1-yl)-methoxy-amide as a yellow oil, that crystallized.

後処理

  1. extractionextracted three times with dichloromethane
  2. dry with materialCombined organics were dried over sodium sulfate
  3. customthe solvent was removed in vacuo

出典と根拠

ORDレコード
ord-a8c5032f725c45e2a8e529921bec0eda
出典データセット
uspto-grants-2014_02
特許番号
US08653003B2

反応ノート

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