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Water → 1-(3-Cyclohexyl-3-hydroxy-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-methoxyphenyl)piperazine

HRID 1272293
ノート
印刷プレビュー

反応式

HRID 1272293 の反応式
[CH:1]1([Mg]Br)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([N:17]2[CH2:22][CH2:21][N:20]([C:23]3[C:24]([CH3:37])=[C:25]([CH3:36])[C:26]4[O:30][C:29]([CH3:32])([CH3:31])[C:28](=[O:33])[C:27]=4[C:34]=3[CH3:35])[CH2:19][CH2:18]2)=[CH:13][CH:12]=1.O>C1COCC1>[CH:1]1([C:28]2([OH:33])[C:27]3[C:34]([CH3:35])=[C:23]([N:20]4[CH2:21][CH2:22][N:17]([C:14]5[CH:15]=[CH:16][C:11]([O:10][CH3:9])=[CH:12][CH:13]=5)[CH2:18][CH2:19]4)[C:24]([CH3:37])=[C:25]([CH3:36])[C:26]=3[O:30][C:29]2([CH3:31])[CH3:32])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1
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 962WaterHCID 229355955-[4-(4-methoxyphenyl)piperazin-1-yl]-2,2,4,6,7-pentamethyl-1-benzofuran-3(2H)-oneHCID 178419651HCID 178419651、化合物

生成物 1

HCID 101627441-(3-Cyclohexyl-3-hydroxy-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-yl)-4-(4-methoxyphenyl)piperazine収率 80.1%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran
溶媒

実験手順

Cyclohexyl magnesium bromide (THF solution 1.0 M, 35 mL, 35 mmol) was added to a solution of 4-(4-methoxyphenyl)-1-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-3-on-5-yl)piperazine (1.00 g, 2.53 mmol) obtained in Reference Example 13 in THF (10 ml) under ice cooling and the reaction mixture was allowed to warm to room temperature. After stirring for one hour, the resulting mixture was poured into water and extracted with ethyl acetate. The organic extract was washed with water and saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1) to obtain 970 mg (yield 80%) of the title compound via recrystallization (hexane). mp. 166–167° C.

後処理

  1. extractionextracted with ethyl acetate
  2. extractionThe organic extract
  3. washwas washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1)

出典と根拠

ORDレコード
ord-0712681781f14e8e83832f9b12041733
出典データセット
uspto-grants-2007_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07208495B2

反応ノート

読み込み中…

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