Methyl vinyl ether → Furan-2,5-dione--methoxyethene (1/1)

HRID 728091

반응식

HRID 728091 반응식
[CH:1]([O:3][CH3:4])=[CH2:2].[C:5]1(=[O:11])[O:10][C:8](=[O:9])[CH:7]=[CH:6]1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>>[CH3:4][O:3][CH:1]=[CH2:2].[CH:6]1[C:5](=[O:11])[O:10][C:8](=[O:9])[CH:7]=1

참가 물질

4

반응물 3

HCID 7861Methyl vinyl etherHCID 7923Maleic Anhydride2회HCID 11776Triphenylphosphine

생성물 1

HCID 62708Furan-2,5-dione--methoxyethene (1/1)

반응 조건

온도
50 °C

실험 절차

Then, 15 L methyl vinyl ether were added and slightly heated until all of the maleic anhydride was dissolved. The temperature was raised to about 50° C. and, once the reaction started, a temperature of 55° to 65° C. was maintained in the reaction vessel by suitable cooling. After 4 to 5 hours, the reaction was completed, as determined by the fact that no monomeric maleic anhydride could be detected by means of triphenylphosphine paper. The excess methyl vinyl ether was distilled off. The process yielded 4.8 kg of a colorless, finely powdered 1:1 maleic anhydride-methyl vinyl ether copolymer having a specific viscosity of 3.1.

후처리

  1. dissolutionwas dissolved
  2. temperaturea temperature of 55° to 65° C. was maintained in the reaction vessel by suitable cooling
  3. distillationThe excess methyl vinyl ether was distilled off

출처 및 근거

ORD 기록
ord-ef986787183c4755bd8ef04dc023b54b
출처 데이터셋
uspto-grants-1991_09
특허 번호
US05047490

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