Acetic Acid → 2-(2-Thioxo-2,3-dihydro-benzooxazol-5-yl)-propionic acid

HRID 1626875노트

반응식

HRID 1626875 반응식
C([O:3][C:4](=[O:17])[CH:5]([C:7]1[CH:8]=[CH:9][C:10]2[O:14][C:13](=[S:15])[NH:12][C:11]=2[CH:16]=1)[CH3:6])C.[OH-].[Na+].C(O)(=O)C>CCO.O>[S:15]=[C:13]1[NH:12][C:11]2[CH:16]=[C:7]([CH:5]([CH3:6])[C:4]([OH:17])=[O:3])[CH:8]=[CH:9][C:10]=2[O:14]1

참가 물질

6

반응물 3

HCID 176Acetic AcidHCID 14798Sodium HydroxideHCID 20319623Ethyl 2-(2-thioxo-2,3-dihydrobenzoxazol-5-yl)propionate

생성물 1

HCID 577421532-(2-Thioxo-2,3-dihydro-benzooxazol-5-yl)-propionic acid

시약·촉매·용매 2

HCID 702Ethanol용매HCID 962Water용매

실험 절차

To a stirred solution of 2-(2-Thioxo-2,3-dihydro-benzooxazol-5-yl)-propionic acid ethyl ester (124 mg) in 90% aq. EtOH was added NaOH (102 mg) at room temperature. After stirred for 20 h at 45, the reaction mixture was cooled to room temperature, diluted with water. The resulting aqueous layer was acidified with acetic acid and then extracted with dichloromethane. The combined organic layer was dried over magnesium sulfate, filtered and concentrated in vacuo. (105 mg, 95.4%)

후처리

  1. extractionextracted with dichloromethane
  2. dry with materialThe combined organic layer was dried over magnesium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-e070e72a7e9242789db4041c78d727e5
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08785474B2

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