醋酸 → Diethyl 2-butenedioate

HRID 36498

反应方程式

HRID 36498 反应方程式
[C:1]([O:9][CH2:10][CH3:11])(=[O:8])[CH2:2][C:3](OCC)=O.C=O.[C:14]([O-:17])(=[O:16])C.[K+].[C:19](O)(=O)[CH3:20]>O.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[CH2:19]([O:17][C:14]([CH:3]=[CH:2][C:1]([O:9][CH2:10][CH3:11])=[O:8])=[O:16])[CH3:20]

参与物

6

反应物 4

HCID 176醋酸HCID 712多聚甲醛HCID 7761丙二酸二乙酯HCID 517044乙酸钾

产物 1

HCID 12201Diethyl 2-butenedioate

试剂、催化剂与溶剂 1

HCID 165397一水合醋酸铜催化剂

实验过程

A mixture of 80 g of diethyl malonate, 30 g of paraformaldehyde, 5 g of potassium acetate, 5 g of copper (II) acetate monohydrate and 200 ml of acetic acid was heated at 90° to 100° C. for 2 hours. Acetic acid was removed from the reaction mixture under reduced pressure, and the residue was evaporated under reduced pressure to obtain 44 g of bis(ethoxycarbonyl)ethylene.

后处理

  1. temperaturewas heated at 90° to 100° C. for 2 hours
  2. customAcetic acid was removed from the reaction mixture under reduced pressure
  3. customthe residue was evaporated under reduced pressure

来源与证据

ORD记录
ord-0ab178be1a0b47a9a0e79cc28e5ff348
来源数据集
uspto-grants-1995_05
专利号
US05414081

关联笔记

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