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

HRID 21441

反応式

HRID 21441 の反応式
[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]

参加物

3

実験手順

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.

後処理

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

出典と根拠

ORDレコード
ord-35071c50779c4899a02973d4e3f1bba9
出典データセット
uspto-grants-1995_06
特許番号
US05424268

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