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Ammonium Chloride → Benzyl 6-(2,2,2-trifluoro-1-hydroxyethyl)-3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate

HRID 247486
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HRID 247486 반응식
[C:1]1([CH3:29])[C:2]([S:7]([O:10][C:11]2[CH2:17][CH:16]3[N:13]([C:14](=[O:18])[CH2:15]3)[C:12]=2[C:19]([O:21][CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)=[O:20])(=[O:9])=[O:8])=[CH:3][CH:4]=[CH:5][CH:6]=1.C([N-]C(C)C)(C)C.[Li+].[F:38][C:39]([F:43])([F:42])[CH:40]=[O:41].[NH4+].[Cl-]>C1COCC1.CCOC(C)=O>[F:38][C:39]([F:43])([F:42])[CH:40]([CH:15]1[C:14](=[O:18])[N:13]2[CH:16]1[CH2:17][C:11]([O:10][S:7]([C:2]1[C:1]([CH3:29])=[CH:6][CH:5]=[CH:4][CH:3]=1)(=[O:9])=[O:8])=[C:12]2[C:19]([O:21][CH2:22][C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1)=[O:20])[OH:41]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

7

반응물 4

HCID 25517Ammonium ChlorideHCID 65564TrifluoroacetaldehydeHCID 2724682Lithium diisopropylamideHCID 131712683Benzyl 3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate

생성물 1

HCID 131714283Benzyl 6-(2,2,2-trifluoro-1-hydroxyethyl)-3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매2회HCID 8857Ethyl Acetate용매

실험 절차

A solution of benzyl 3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate (41 mg) in anhydrous THF (0.5 ml) is added dropwise over 5 mins to a stirring solution of lithium diisopropylamide (from 15.5 μl of diisopropylamine and 70 μl of 1.6N BuLi) in anhydrous THF (1.5 ml) at -78°. The resulting solution is stirred under a N2 atm at -78° for 10 mins and then trifluoroacetaldehyde (50 mg) is added all at once. After 1 more min, saturated aqueous NH4Cl solution (1.5 ml) is added and the mixture is allowed to warm to room temperature. The mixture is diluted with EtOAc (20 ml), washed with water and brine, dried with MgSO4, filtered, and evaporated in vacuo. The benzyl 6-(2,2,2-trifluoro-1-hydroxyethyl)-3-toluenesulfonyloxy-1-azabicyclo[3.2.0]hept-2-en-7-one-2-carboxylate.

후처리

  1. washwashed with water and brine
  2. dry with materialdried with MgSO4
  3. filtrationfiltered
  4. customevaporated in vacuo

출처 및 근거

ORD 기록
ord-dab01ef3a9494730ada393b42be710c6
출처 데이터셋
uspto-grants-1987_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04707547

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