Sodium hydride → (E,E)-4-ethyl-2,4-hexadienenitrile

HRID 1606932

반응식

HRID 1606932 반응식
[H-].[Na+].[C:3]([CH2:5]P(=O)(OCC)OCC)#[N:4].[CH2:14](/[C:16](=[CH:19]\[CH3:20])/[CH:17]=O)[CH3:15]>C1C=CC=CC=1.O>[CH2:19](/[C:16](=[CH:14]\[CH3:15])/[CH:17]=[CH:5]/[C:3]#[N:4])[CH3:20]

참가 물질

6

반응물 3

HCID 24758Sodium hydrideHCID 75676Diethyl (cyanomethyl)phosphonateHCID 53628972-Butenal, 2-ethyl-

생성물 1

HCID 14329794(E,E)-4-ethyl-2,4-hexadienenitrile수율 41%

시약·촉매·용매 2

HCID 241Benzene용매2회HCID 962Water용매

반응 조건

온도
0 °C

실험 절차

To a mixture of sodium hydride (60% in oil, 7.5 g) and dry benzene (200 ml) was added dropwise diethyl cyanomethylphosphonate (30 g) with stirring at 0° C. under dry nitrogen atmosphere. After stirring for 60 minutes at room temperature, a solution of (E)-2-ethyl-2-butenal (16.6 g) in dry benzene was added thereto at 0° C. with stirring. The resulting mixture was allowed to stand at room temperature for 60 minutes and diluted with water and then extracted with ethyl acetate. The extract was washed successively with water and brine, and then dried over magnesium sulfate. Removal of the solvent gave an oil which was purified by distillation under reduced pressure to give (E,E)-4-ethyl-2,4-hexadienenitrile (8.4 g).

후처리

  1. stirringAfter stirring for 60 minutes at room temperature
  2. stirringat 0° C. with stirring
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed successively with water and brine
  5. dry with materialdried over magnesium sulfate
  6. customRemoval of the solvent
  7. customgave an oil which
  8. distillationwas purified by distillation under reduced pressure

출처 및 근거

ORD 기록
ord-93a29c7ba9974ab896ceabd829cd7a8d
출처 데이터셋
uspto-grants-1989_09
특허 번호
US04863926

연결된 노트

불러오는 중…