Water → 5-(Benzyloxy)-2,3-dihydro-1H-indole

HRID 1633673

反応式

HRID 1633673 の反応式
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[NH:14][CH:13]=[CH:12]2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[BH3-]C#N.[Na+].O.[OH-].[K+]>C(O)(=O)C>[CH2:1]([O:8][C:9]1[CH:10]=[C:11]2[C:15](=[CH:16][CH:17]=1)[NH:14][CH2:13][CH2:12]2)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 962WaterHCID 146245-BenzyloxyindoleHCID 14797Potassium HydroxideHCID 5003444Sodium cyanoborohydride

生成物 1

HCID 167948815-(Benzyloxy)-2,3-dihydro-1H-indole収率 89.2%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

実験手順

This example was carried out in analogy to: Gordon W. Gribble, Joseph H. Hoffmann Synthesis 1977, 859-860. To a precooled solution of 22.3 g (0.1 mol) 5-benzyloxyindole in 270 ml acetic acid, 19 g (0.3 mol) NaCNBH3 were added. The solution was stirred at RT for 2 h, the volume was reduced to a third and poured into 300 ml water. Potassium hydroxide was added under cooling, and the solution was extracted with ether. The combined organic phases were washed with water, dried over Na2SO4 and evaporated to yield 20.1 g (89%) 5-Benzyloxy-2,3-dihydro-1H-indole as colorless oil, MS: 225 (M).

後処理

  1. customHoffmann Synthesis 1977, 859-860
  2. temperatureunder cooling
  3. extractionthe solution was extracted with ether
  4. washThe combined organic phases were washed with water
  5. dry with materialdried over Na2SO4
  6. customevaporated

出典と根拠

ORDレコード
ord-d87fea5eadef4b14ba1f76e9e3fd3b46
出典データセット
uspto-grants-2003_01
特許番号
US06503907B2

関連ノート

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