Sodium bis(2-methoxyethoxy)aluminiumhydride → 4-((E)-2-{4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenyl}-vinyl)-tetrahydro-pyran-4-ol

HRID 547041ノート

反応式

HRID 547041 の反応式
[H-].COCCO[Al+]OCCOC.[Na+].[H-].[CH2:15]([C:17]([C:28]1[CH:33]=[CH:32][C:31]([C:34]#[C:35][C:36]2([OH:42])[CH2:41][CH2:40][O:39][CH2:38][CH2:37]2)=[C:30]([CH3:43])[CH:29]=1)([C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[C:22]([CH3:27])[CH:21]=1)[CH2:18][CH3:19])[CH3:16]>O1CCCC1.[Cl-].[Na+].O.C(OCC)(=O)C>[CH2:15]([C:17]([C:28]1[CH:33]=[CH:32][C:31](/[CH:34]=[CH:35]/[C:36]2([OH:42])[CH2:41][CH2:40][O:39][CH2:38][CH2:37]2)=[C:30]([CH3:43])[CH:29]=1)([C:20]1[CH:25]=[CH:24][C:23]([OH:26])=[C:22]([CH3:27])[CH:21]=1)[CH2:18][CH3:19])[CH3:16]

参加物

6

反応物 2

HCID 21584525Sodium bis(2-methoxyethoxy)aluminiumhydrideHCID 577089754-{4-[1-Ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenylethynyl}-tetrahydro-pyran-4-ol

生成物 1

HCID 574541474-((E)-2-{4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenyl}-vinyl)-tetrahydro-pyran-4-ol収率 99.5%

試薬・触媒・溶媒 3

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒2 回HCID 57417360Sodium chloride; water溶媒

反応条件

温度
0 °C

実験手順

Sodium bis(2-methoxyethoxy)aluminum hydride (65 wt % solution in toluene, 1.06 mL, 3.516 mmol) was added to a solution of 4-{4-[1-ethyl-1-(4-hydroxy-3-methyl-phenyl)-propyl]-2-methyl-phenylethynyl}-tetrahydro-pyran-4-ol (Example 130-(1); 0.46 g, 1.172 mmol) in tetrahydrofuran (5 mL) in a nitrogen atmosphere at 0° C., and the mixture was stirred at 0° C. for three hours. Then, ethyl acetate and brine were added to the reaction mixture, which was further diluted with ethyl acetate. Thereafter, celite was added and the mixture was stirred at room temperature for three hours. The reaction mixture was filtered through celite, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=100:0 to 30:70, 40 minutes) to give the target compound as a colorless oil (0.46 g, 99%).

後処理

  1. additionThereafter, celite was added
  2. stirringthe mixture was stirred at room temperature for three hours
  3. filtrationThe reaction mixture was filtered through celite
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel chromatography (hexane:ethyl acetate=100:0 to 30:70, 40 minutes)

出典と根拠

ORDレコード
ord-0a2a822fddc44afe9a4c3b110eeebf20
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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