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

HRID 444354ノート

反応式

HRID 444354 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 temperature and is stirred 2 hours longer. It is then quenched be 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. customIt is then quenched
  3. additionaddition to a solution of 170 ml
  4. customof water (temperature ≤30° C.)
  5. temperatureto warm to room temperature
  6. stirringis then stirred an additional 2 hours
  7. customThe organic layer is separated
  8. extractionthe aqueous phase extracted once with one liter of ether
  9. washThe combined organic phase is washed with 500 ml
  10. dry with materialof saturated sodium chloride, dried over magnesium sulfate
  11. customevaporated
  12. customto yield 315 g

出典と根拠

ORDレコード
ord-b090ed1ca7ee4a3f96c62946b0097cb8
出典データセット
uspto-grants-1981_04
特許番号
US04263438

反応ノート

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