Phenylacetonitrile → Ethyl 3-cyano-3-phenylpyruvate

HRID 268465

반응식

HRID 268465 반응식
[C:1]1([CH2:7][C:8]#[N:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:10]([O:15][CH2:16][CH3:17])(=[O:14])[C:11]([O-])=[O:12].[O-]CC.[Na+].[Na]>C(O)C>[C:8]([CH:7]([C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1)[C:11](=[O:12])[C:10]([O:15][CH2:16][CH3:17])=[O:14])#[N:9]

참가 물질

6

반응물 4

HCID 8794PhenylacetonitrileHCID 2723922Sodium ethoxideHCID 5360545SodiumHCID 21943339Ethanedioic acid, monoethyl ester

생성물 1

HCID 22845Ethyl 3-cyano-3-phenylpyruvate

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

A mixture of 117.1 g. (1.0 mol.) of phenylacetonitrile and 326 ml. (2.4 mol.) of ethyl oxalate was added to an ethanol solution of sodium ethoxide [prepared by dissolving 23.8 g. (1.08 g. -atom) of sodium in 500 ml. of absolute ethanol] and refluxed for two hours. After cooling, diluting with 2500 ml. of water and extracting with ether, the solution was acidified with acetic acid. The solid was removed by filtration and washed with water to give ethyl 3-cyano-3-phenylpyruvate, m.p. 127°-129°.

후처리

  1. additionA mixture of 117.1 g
  2. temperaturerefluxed for two hours
  3. temperatureAfter cooling
  4. additiondiluting with 2500 ml
  5. extractionof water and extracting with ether
  6. customThe solid was removed by filtration
  7. washwashed with water

출처 및 근거

ORD 기록
ord-4f04b52743454e7e8f44473e9b3dc849
출처 데이터셋
uspto-grants-1976_03
특허 번호
US03947580

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