Trifluoroacetic acid → 1-{6-[2-(Benzyloxy)-1,1,1,3,3,3-hexafluoropropan-2-yl]-4-propylpyridin-3-yl}piperazine

HRID 1038552ノート

反応式

HRID 1038552 の反応式
[CH2:1]([O:8][C:9]([C:18]1[N:23]=[CH:22][C:21]([N:24]2[CH2:29][CH2:28][N:27](C(OC(C)(C)C)=O)[CH2:26][CH2:25]2)=[C:20]([CH2:37][CH2:38][CH3:39])[CH:19]=1)([C:14]([F:17])([F:16])[F:15])[C:10]([F:13])([F:12])[F:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+]>ClCCl>[CH2:1]([O:8][C:9]([C:18]1[N:23]=[CH:22][C:21]([N:24]2[CH2:29][CH2:28][NH:27][CH2:26][CH2:25]2)=[C:20]([CH2:37][CH2:38][CH3:39])[CH:19]=1)([C:10]([F:11])([F:13])[F:12])[C:14]([F:15])([F:16])[F:17])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 86647196Tert-butyl 4-{6-[2-(benzyloxy)-1,1,1,3,3,3-hexafluoropropan-2-yl]-4-propylpyridin-3-yl}piperazine-1-carboxylate

生成物 1

HCID 866471981-{6-[2-(Benzyloxy)-1,1,1,3,3,3-hexafluoropropan-2-yl]-4-propylpyridin-3-yl}piperazine収率 103.9%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

tert-Butyl 4-{6-[2-(benzyloxy)-1,1,1,3,3,3-hexafluoropropan-2-yl]-4-propylpyridin-3-yl}piperazine-1-carboxylate (32 mg, 0.0563 mmol) was dissolved in dichloromethane (10 mL). Under ice-cold conditions, trifluoro acetic acid (43 μL, 0.563 mmol) was added and the mixture was stirred at room temperature for 0.5 hours. The reaction solution was added a saturated aqueous solution of sodium hydrogen carbonate under ice-cold conditions, and extracted with chloroform. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The obtained residue was purified by silica-gel column chromatography (chloroform), and the title compound (27 mg (yield >99%)) was obtained as a yellow oil.

後処理

  1. extractionextracted with chloroform
  2. washThe organic layer was washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe obtained residue was purified by silica-gel column chromatography (chloroform)

出典と根拠

ORDレコード
ord-5540ca212bdb4180aa6b15f133c2c44a
出典データセット
uspto-grants-2013_10
特許番号
US08551985B2

反応ノート

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