Potassium Carbonate → 2-(4-(2,3-Epoxypropoxy)phenyl)acetamide

HRID 1107056노트

반응식

HRID 1107056 반응식
[CH:1]1[C:6]([CH2:7][C:8]([NH2:10])=[O:9])=[CH:5][CH:4]=[C:3]([OH:11])[CH:2]=1.C1(C)C=CC(S(O[CH2:22][C@H:23]2[O:25][CH2:24]2)(=O)=O)=CC=1.C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[C:8]([CH2:7][C:6]1[CH:5]=[CH:4][C:3]([O:11][CH2:22][CH:23]2[O:25][CH2:24]2)=[CH:2][CH:1]=1)(=[O:9])[NH2:10]

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 86986(4-Hydroxyphenyl)acetamideHCID 153296Oxiranemethanol, 4-methylbenzenesulfonate, (S)-

생성물 1

HCID 1198572-(4-(2,3-Epoxypropoxy)phenyl)acetamide

시약·촉매·용매 1

HCID 180Acetone용매

실험 절차

P-Hydroxyphenylacetamide (1 g) and (S)-glycidyl p-toluenesulfonate (1.51 g, 99.3% e.e.) were dissolved in acetone (30 ml). Potassium carbonate (1.19 g) was added to the solution and stirred for 30 hours under refluxing. After the reaction, inorganic materials were filtered off and acetone was removed to give 1.43 g of crude (S)-1-[p-(carbamoylmethyl)phenoxy-2,3-epoxypropane. Then, crude (S)-1-[p-(carbamoylmethyl)phenoxy-2,3-epoxypropane (1.43 g) was dissolved in methanol (8 ml). The solution was dropped in isopropylamine (6.8 g) under cooling to 10° C. over a period of 1 hour and the reaction temperature was raised to room temperature and stirred for 7 hours. After the reaction, the mixture was condensed in vacuo until crystals beginning to separate, cooled, filtrated by suction and dried in vacuo to give crude (S)-atenolol (1.29 g). The optical purity of it was 62.8% e.e. by measurement of Chiral column OD (Daisel Chemical industries Ltd.).

후처리

  1. temperatureunder refluxing
  2. customAfter the reaction, inorganic materials
  3. filtrationwere filtered off
  4. customacetone was removed

출처 및 근거

ORD 기록
ord-625060aa6a274a8abc672ff94ec3ceda
출처 데이터셋
uspto-grants-2000_05
특허 번호
US06057476

반응 노트

불러오는 중…