Ammonium Chloride → 4-{4-[1-Ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenylethynyl}-tetrahydro-thiopyran-4-ol

HRID 547049ノート

反応式

HRID 547049 の反応式
C([Li])CCC.[CH2:6]([C:8]([C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[C:22]([CH3:27])[CH:21]=1)([C:11]1[CH:16]=[CH:15][C:14]([C:17]#[CH:18])=[C:13]([CH3:19])[CH:12]=1)[CH2:9][CH3:10])[CH3:7].[O:28]=[C:29]1[CH2:34][CH2:33][S:32][CH2:31][CH2:30]1.[Cl-].[NH4+]>O1CCCC1>[CH2:6]([C:8]([C:11]1[CH:16]=[CH:15][C:14]([C:17]#[C:18][C:29]2([OH:28])[CH2:34][CH2:33][S:32][CH2:31][CH2:30]2)=[C:13]([CH3:19])[CH:12]=1)([C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[C:22]([CH3:27])[CH:21]=1)[CH2:9][CH3:10])[CH3:7]

参加物

6

反応物 4

HCID 25517Ammonium ChlorideHCID 66173Tetrahydrothiopyran-4-oneHCID 585982954-[1-Ethyl-1-(4-ethynyl-3-methyl-phenyl)-propyl]-2-methyl-phenolHCID 178418339Butyllithium

生成物 1

HCID 577091764-{4-[1-Ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenylethynyl}-tetrahydro-thiopyran-4-ol収率 74.9%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
0 °C

実験手順

n-Butyllithium (2.71 M solution in hexane, 2.8 mL, 7.6 mmol) was added to a solution of 4-[1-ethyl-1-(4-ethynyl-3-methyl-phenyl)-propyl]-2-methyl-phenol (Example 1-(3); 1 g, 3.4 mmol) in tetrahydrofuran (17 mL) in a nitrogen atmosphere at 0° C. Then, a solution of 4-oxothiane (0.4 g, 3.4 mmol) in tetrahydrofuran (2 mL) was added to the reaction mixture, which was further stirred at 0° C. for 30 minutes. The reaction mixture was then poured into a saturated aqueous ammonium chloride solution, followed by extraction with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=2:1) to give the target compound (1.04 g, 74%).

後処理

  1. extractionfollowed by extraction with ethyl acetate
  2. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=2:1)

出典と根拠

ORDレコード
ord-8c45123bd9ce405199c9ac8ab050faf4
出典データセット
uspto-grants-2011_05
特許番号
US07935688B2

反応ノート

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