Terephthalic Acid → Choline

HRID 436720

반응식

HRID 436720 반응식
[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[OH-].[OH:14][CH2:15][CH2:16][N+:17]([CH3:20])([CH3:19])[CH3:18]>CO>[OH:14][CH2:15][CH2:16][N+:17]([CH3:20])([CH3:19])[CH3:18].[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1

참가 물질

5

반응물 2

HCID 7489Terephthalic Acid3회HCID 31255Choline, hydroxide

생성물 2

HCID 305CholineHCID 7489Terephthalic Acid

시약·촉매·용매 1

HCID 887Methanol용매2회

실험 절차

Terephthalic acid (16 parts) is slurried in methanol (80 parts) at 0° C. A 45% solution of 2-hydroxyethyltrimethylammonium hydroxide (choline base) in methanol (10 parts) is added to the slurried terephthalic acid. After stirring for 30 minutes the excess terephthalic acid is removed by filtration. The filtrate is concentrated under reduced pressure and cooled, giving the mono-2-hydroxyethyltrimethylammonium salt of terephthalic acid as a precipitate which is isolated by filtration. That the product is the mono-salt is shown by the following elemental analysis:

후처리

  1. customis removed by filtration
  2. concentrationThe filtrate is concentrated under reduced pressure
  3. temperaturecooled

출처 및 근거

ORD 기록
ord-36ef37dbef9f45058c8d0cddab49b5af
출처 데이터셋
uspto-grants-1977_06
특허 번호
US04028307

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