Lithium Hydroxide → 4-[[[3-(4-Acetyl-3 hydroxy-2-propylphenoxy)propyl]thio]methyl]1,3 oxathiolane-2,2-dipropanoic acid

HRID 1650234노트

반응식

HRID 1650234 반응식
[C:1]([C:4]1[CH:34]=[CH:33][C:7]([O:8][CH2:9][CH2:10][CH2:11][S:12][CH2:13][CH:14]2[CH2:18][O:17][C:16]([CH2:26][CH2:27][C:28]([O:30]CC)=[O:29])([CH2:19][CH2:20][C:21]([O:23]CC)=[O:22])[S:15]2)=[C:6]([CH2:35][CH2:36][CH3:37])[C:5]=1[OH:38])(=[O:3])[CH3:2].[OH-].[Li+]>C(O)C>[C:1]([C:4]1[CH:34]=[CH:33][C:7]([O:8][CH2:9][CH2:10][CH2:11][S:12][CH2:13][CH:14]2[CH2:18][O:17][C:16]([CH2:19][CH2:20][C:21]([OH:23])=[O:22])([CH2:26][CH2:27][C:28]([OH:30])=[O:29])[S:15]2)=[C:6]([CH2:35][CH2:36][CH3:37])[C:5]=1[OH:38])(=[O:3])[CH3:2]

참가 물질

4

반응물 2

HCID 3939Lithium HydroxideHCID 14405887Diethyl 4-[[[3 (4-acetyl-3-hydroxy-2-propylphenoxy)propyl]thio]methyl]-1,3 oxathiolane-2,2-dipropanoate

생성물 1

HCID 144058884-[[[3-(4-Acetyl-3 hydroxy-2-propylphenoxy)propyl]thio]methyl]1,3 oxathiolane-2,2-dipropanoic acid수율 94.5%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

The product of Example 2 (3 g, 0.0052 mol) was dissolved in ethanol (50 ml). Aqueous lithium hydroxide solution (2 M, 9.2 ml) as added and the reaction solution was stirred at room temperature for 3 hrs. Ethanol was removed using the rotary evaporator and the aqueous residue was acidified to pH2 using aqueous 0.5 N sodium bisulfate solution. The oil which separated was extracted with ethyl acetate and the organic layer dried over anhydrous magnesium sulfate. The drying agent was filtered and the filtrate concentrated on the rotary evaporator to give 2.53 g of a colorless oil which was dried at 70° (0.1 mm Hg) for 5 hrs. to give the title compound.

후처리

  1. customEthanol was removed
  2. customthe rotary evaporator
  3. customThe oil which separated
  4. extractionwas extracted with ethyl acetate
  5. dry with materialthe organic layer dried over anhydrous magnesium sulfate
  6. filtrationThe drying agent was filtered
  7. concentrationthe filtrate concentrated on the rotary evaporator

출처 및 근거

ORD 기록
ord-155ec3738751482ab2c5baa144e4dd7b
출처 데이터셋
uspto-grants-1990_05
특허 번호
US04923891

반응 노트

불러오는 중…