Tetrahydrofuran → 2-(3-(Benzyloxy)phenyl)-2-methylpropanal

HRID 894908ノート

反応式

HRID 894908 の反応式
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([C:15]([CH3:19])([CH3:18])[C:16]#N)[CH:12]=[CH:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].C([Al+]CC(C)C)C(C)C.[O:30]1CCCC1>CCCCCC>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([C:15]([CH3:19])([CH3:18])[CH:16]=[O:30])[CH:12]=[CH:13][CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 8028TetrahydrofuranHCID 204968632-(3-(Benzyloxy)phenyl)-2-methylpropanenitrileHCID 21225700Diisobutylaluminumhydride

生成物 1

HCID 198553592-(3-(Benzyloxy)phenyl)-2-methylpropanal収率 99%

試薬・触媒・溶媒 1

HCID 8058Hexane溶媒

実験手順

To a 15° C. solution of 325 g. (1.25 mole) of 2-(3-benzyloxyphenyl)-2-methylpropionitrile in 1.85 liters of tetrahydrofuran is added 1.6 moles of diisobutylaluminum hydride as a 1.3 M solution in hexane (reaction temperature is maintained at 15°-18° C.). The reaction mixture is allowed to warm to room temperaure and is stirred 2 hours longer. It is then quenched by addition to a solution of 170 ml. of concentrated sulfuric acid in 670 ml. of water (temperature ≤30° C.). The resultant mixture is allowed to warm to room temperature and is then stirred an additional 2 hours. The organic layer is separated and the aqueous phase extracted once with one liter of ether. The combined organic phase is washed with 500 ml. of water and 500 ml. of saturated sodium chloride, dried over magnesium sulfate and evaporated to yield 315 g. (99%) of the title product.

後処理

  1. customTo a 15° C.
  2. temperatureto warm to room temperaure
  3. customIt is then quenched by addition to a solution of 170 ml
  4. customof water (temperature ≤30° C.)
  5. stirringis then stirred an additional 2 hours
  6. customThe organic layer is separated
  7. extractionthe aqueous phase extracted once with one liter of ether
  8. washThe combined organic phase is washed with 500 ml
  9. dry with materialof saturated sodium chloride, dried over magnesium sulfate
  10. customevaporated
  11. customto yield 315 g

出典と根拠

ORDレコード
ord-d2103057159a45aca9c0f23adf33e2ba
出典データセット
uspto-grants-1981_08
特許番号
US04284829

反応ノート

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