Methacrylic Acid → 4-[4-(Methacryloyloxy)butoxy]benzenecarboxylic acid

HRID 21441

반응식

HRID 21441 반응식
[OH:1][CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:15]=[CH:14][C:10]([C:11]([OH:13])=[O:12])=[CH:9][CH:8]=1.[C:16](O)(=[O:20])[C:17]([CH3:19])=[CH2:18]>>[C:16]([O:1][CH2:2][CH2:3][CH2:4][CH2:5][O:6][C:7]1[CH:15]=[CH:14][C:10]([C:11]([OH:13])=[O:12])=[CH:9][CH:8]=1)(=[O:20])[C:17]([CH3:19])=[CH2:18]

참가 물질

3

실험 절차

4-(4-Hydroxybutoxy)benzoic acid (prepared by the method of Whitcombe et al., Polymer Comm., 32, 380-381 (1991)) was esterified with methacrylic acid by the method described in Portugall et al., Makromol. Chem 183, 2311 (1982) to give an oil which was precipitated into water, filtered, dried and recrystallized from 2-propanol to give 4-(4-methacryloxybutoxy)benzoic acid, melting point 103°-106° C. acid was converted to the desired acid chloride by the method described in the aforementioned Portugall et al. paper; the acid chloride was obtained as a clear, colorless oil, which was recrystallized from dry hexanes to give the final product (84% yield) as fluffy white needles, melting point 30°-31° C.

후처리

  1. customChem 183, 2311 (1982) to give an oil which
  2. customwas precipitated into water
  3. filtrationfiltered
  4. customdried
  5. customrecrystallized from 2-propanol

출처 및 근거

ORD 기록
ord-35071c50779c4899a02973d4e3f1bba9
출처 데이터셋
uspto-grants-1995_06
특허 번호
US05424268

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