Acetic Anhydride → Ethyl 2-butyryl-3-ethoxyacrylate

HRID 128607

반응식

HRID 128607 반응식
[C:1]([CH2:6][C:7]([O:9][CH2:10][CH3:11])=[O:8])(=[O:5])[CH2:2][CH2:3][CH3:4].[C:12]([O:15][C:16](=O)C)(=O)[CH3:13].C(OC(OCC)OCC)C>>[CH2:12]([O:15][CH:16]=[C:6]([C:1](=[O:5])[CH2:2][CH2:3][CH3:4])[C:7]([O:9][CH2:10][CH3:11])=[O:8])[CH3:13]

참가 물질

4

반응물 3

HCID 7918Acetic AnhydrideHCID 31214Ethyl orthoformateHCID 238498Ethyl 3-oxohexanoate

생성물 1

HCID 3359484Ethyl 2-butyryl-3-ethoxyacrylate

실험 절차

A mixture of ethyl butyrylacetate (105.1 g), acetic anhydride (126 ml) and triethylorthoformate (117 ml) was stirred and boiled under reflux for 1.5 hours. The low boiling materials were distilled off under reduced pressure and the residue distilled under high vacuum to give ethyl 2-(ethoxymethylene)-3-oxohexanoate, b.p. 109°-120° C. (0.4 mmHg).

후처리

  1. temperatureunder reflux for 1.5 hours
  2. distillationThe low boiling materials were distilled off under reduced pressure
  3. distillationthe residue distilled under high vacuum

출처 및 근거

ORD 기록
ord-8469f7fe2b9a4676828fda6c5a3ef9f1
출처 데이터셋
uspto-grants-1995_11
특허 번호
US05464781

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