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1-Hydroxybenzotriazole → Tert-butyl 4-(2-fluoro-3-(trifluoromethyl)benzoyl)piperazine-1-carboxylate

HRID 1172453
ノート
印刷プレビュー

反応式

HRID 1172453 の反応式
[C:1]([N:8]1[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]1)([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2].Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.[F:36][C:37]1[C:45]([C:46]([F:49])([F:48])[F:47])=[CH:44][CH:43]=[CH:42][C:38]=1[C:39](O)=[O:40]>C(Cl)(Cl)Cl>[F:36][C:37]1[C:45]([C:46]([F:47])([F:48])[F:49])=[CH:44][CH:43]=[CH:42][C:38]=1[C:39]([N:11]1[CH2:10][CH2:9][N:8]([C:1]([O:3][C:4]([CH3:7])([CH3:6])[CH3:5])=[O:2])[CH2:13][CH2:12]1)=[O:40]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 757711-HydroxybenzotriazoleHCID 143452tert-Butyl piperazine-1-carboxylateHCID 5180022-Fluoro-3-(trifluoromethyl)benzoic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride

生成物 1

HCID 57562617Tert-butyl 4-(2-fluoro-3-(trifluoromethyl)benzoyl)piperazine-1-carboxylate

試薬・触媒・溶媒 1

HCID 6212
Chloroform
溶媒
2 回

実験手順

A mixture of 3.66 g of 1-Boc-piperazine, 4.53 g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride, 3.61 g of 1-hydroxybenzotriazole, 4.50 g of 2-fluoro-3-(trifluoromethyl)benzoic acid and 40 ml of chloroform was stirred at room temperature for 4 hours. The reaction mixture was diluted with chloroform and then was washed with water and brine. The resulting organic layer was dried over magnesium sulfate and filtered, and the filtrate was concentrated in vacuo. The resulting residue was purified by a silica gel column chromatography (eluent: hexane/ethyl acetate=4/1 to 2/1) to give the title compound.

後処理

  1. washwas washed with water and brine
  2. dry with materialThe resulting organic layer was dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated in vacuo
  5. customThe resulting residue was purified by a silica gel column chromatography (eluent: hexane/ethyl acetate=4/1 to 2/1)

出典と根拠

ORDレコード
ord-da83d30485be4d3a81fdbab64f6b785d
出典データセット
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07834018B2

反応ノート

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