[4-Acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid ethyl ester → [4-Acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid
반응식
C([O:3][C:4](=[O:37])[CH2:5][O:6][C:7]1[CH:12]=[CH:11][C:10]([C:13](=[O:15])[CH3:14])=[C:9]([O:16][CH2:17][CH2:18][CH2:19][O:20][C:21]2[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([OH:30])[C:22]=2[CH2:31][CH2:32][CH3:33])[C:8]=1[CH2:34][CH2:35][CH3:36])C>C(O)C.[OH-].[Na+]>[C:13]([C:10]1[CH:11]=[CH:12][C:7]([O:6][CH2:5][C:4]([OH:37])=[O:3])=[C:8]([CH2:34][CH2:35][CH3:36])[C:9]=1[O:16][CH2:17][CH2:18][CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([OH:30])[C:22]=1[CH2:31][CH2:32][CH3:33])(=[O:15])[CH3:14]참가 물질
4
실험 절차
A suspension of 1.94 g of [4-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid ethyl ester in 5 ml of ethanol and 20 ml of 1.0N sodium hydroxide was refluxed for 1 hour. After cooling, ice water was added and the mixture was acidified. The precipitate was extracted with methylene chloride. The dried, over magnesium sulfate, extract was concentrated in vacuo to an oil. Crystallization from ether-hexane gave 1.29 g, mp 124°-125°, (71% yield) of [4-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid.
후처리
- temperaturewas refluxed for 1 hour
- temperatureAfter cooling
- extractionThe precipitate was extracted with methylene chloride
- extractionThe dried, over magnesium sulfate, extract
- concentrationwas concentrated in vacuo to an oil
- customCrystallization from ether-hexane
출처 및 근거
- ORD 기록
- ord-22a5865a0cab4ea391f33686d999af0f
- 출처 데이터셋
- uspto-grants-1988_11
- 특허 번호
- US04782176
반응 노트
불러오는 중…