Phenylacetonitrile → Ethyl 3-cyano-3-phenylpyruvate

HRID 267754

반응식

HRID 267754 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+]>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

5

반응물 3

HCID 8794PhenylacetonitrileHCID 2723922Sodium ethoxideHCID 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. (1.0m.) of phenylacetonitrile and 326 ml. (2.4m.) of ethyl oxalate is added to an ethanol solution of sodium ethoxide (prepared by dissolving 23.8 g., 1.08m. of sodium in 500 ml. of absolute ethanol) and refluxed two hours. After cooling, diluting with 2500 ml. of water and extracting with ether, the solution is acidified with acetic acid. The solid is removed and washed with water to give ethyl 3-cyano-3-phenylpyruvate, m.p. 127°-129° C.

후처리

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

출처 및 근거

ORD 기록
ord-5a583588cf9a4ecd87ac26e99fc1ed56
출처 데이터셋
uspto-grants-1976_03
특허 번호
US03944571

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