Isobutylamine → N-(2-methylpropyl)cyclopentanamine

HRID 1946685

反応式

HRID 1946685 の反応式
[C:1]1(=O)[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH2:7]([NH2:11])[CH:8]([CH3:10])[CH3:9].[BH4-].[Na+]>C(O)C>[CH:1]1([NH:11][CH2:7][CH:8]([CH3:10])[CH3:9])[CH2:5][CH2:4][CH2:3][CH2:2]1

参加物

5

反応物 3

HCID 6558IsobutylamineHCID 8452CyclopentanoneHCID 4311764Sodium borohydride

生成物 1

HCID 28428761N-(2-methylpropyl)cyclopentanamine

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

反応条件

温度
70 °C

実験手順

A mixture of cyclopentanone (10 g, 0.12 mol) and isobutyl amine (29.5 ml, 0.297 mol) was heated at 70° C. for 3 h under nitrogen. After cooling to 0° C., absolute ethanol (50 ml) was added to the reaction mixture, followed by sodium borohydride (6.59 g, 0.178 mol) in portions. The reaction mixture stirred at RT for 12 h, the solvent was removed under vacuum. The residue was taken up in MTBE and washed with water and brine. The organic layer was dried over Na2SO4, evaporated to dryness and the crude was purified by chromatography using silica gel (60-120 mesh), dichloromethane\methanol as eluent to afford of the titled compound as a yellow liquid.

後処理

  1. temperatureAfter cooling to 0° C.
  2. customthe solvent was removed under vacuum
  3. washwashed with water and brine
  4. dry with materialThe organic layer was dried over Na2SO4
  5. customevaporated to dryness
  6. customthe crude was purified by chromatography

出典と根拠

ORDレコード
ord-0e81c911447b48efbf21dfe4b58644d4
出典データセット
uspto-grants-2013_03
特許番号
US08399448B2

関連ノート

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