Ibuprofen, (+-)- → Phthalidyl 2-(4-isobutylphenyl)propionate

HRID 371108

반응식

HRID 371108 반응식
[CH2:1]([C:5]1[CH:10]=[CH:9][C:8]([CH:11]([CH3:15])[C:12]([OH:14])=[O:13])=[CH:7][CH:6]=1)[CH:2]([CH3:4])[CH3:3].Br[CH:17]1[C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:19](=[O:20])[O:18]1>C(Cl)(Cl)Cl.C(N(CC)CC)C>[CH2:1]([C:5]1[CH:6]=[CH:7][C:8]([CH:11]([CH3:15])[C:12]([O:14][CH:17]2[C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[C:19](=[O:20])[O:18]2)=[O:13])=[CH:9][CH:10]=1)[CH:2]([CH3:4])[CH3:3]

참가 물질

5

반응물 2

HCID 3672Ibuprofen, (+-)-HCID 962181(3H)-Isobenzofuranone, 3-bromo-

생성물 1

HCID 12769702Phthalidyl 2-(4-isobutylphenyl)propionate수율 82.2%

시약·촉매·용매 2

HCID 6212Chloroform용매2회HCID 8471Triethylamine용매

실험 절차

To a solution of 6.2 g of 2-(4-isobutylphenyl)propionic acid in 30 ml of chloroform and 3.4 g of triethylamine, a solution of 6.2 g of 3-bromophthalide in 20 ml of chloroform is added. The solution thus obtained is stirred 24 hours at room temperature (about +22° C.), the organic phase is washed with an aqueous solution of sodium bicarbonate, then with water and finally it is dried on anhydrous sodium sulfate and evaporated to dryness. The residue, crystallized from petroleum ether, yields 8.1 g of phthalidyl 2-(4-isobutylphenyl)propionate; m.p. 62°-65° C. IR: 1795 and 1780 cm1

후처리

  1. customThe solution thus obtained
  2. washthe organic phase is washed with an aqueous solution of sodium bicarbonate
  3. dry with materialwith water and finally it is dried on anhydrous sodium sulfate
  4. customevaporated to dryness
  5. customThe residue, crystallized from petroleum ether

출처 및 근거

ORD 기록
ord-becd6a5b7db84e83858dbfd9caf14c78
출처 데이터셋
uspto-grants-1985_07
특허 번호
US04529737

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