Water → 2-(3-Fluoropropyl)-1H-isoindole-1,3(2H)-dione

HRID 341144노트

반응식

HRID 341144 반응식
[F:1][CH2:2][CH2:3][CH2:4]OS(C)(=O)=O.[C:10]1(=[O:20])[NH:14][C:13](=[O:15])[C:12]2=[CH:16][CH:17]=[CH:18][CH:19]=[C:11]12.[K].O>CN(C=O)C>[F:1][CH2:2][CH2:3][CH2:4][N:14]1[C:10](=[O:20])[C:11]2[C:12](=[CH:16][CH:17]=[CH:18][CH:19]=2)[C:13]1=[O:15]

참가 물질

5

반응물 3

HCID 962WaterHCID 2483883-Fluoropropyl methanesulfonateHCID 24194345Phthalimide potassium salt

생성물 1

HCID 219074482-(3-Fluoropropyl)-1H-isoindole-1,3(2H)-dione수율 99.7%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
75 °C

실험 절차

A solution of methanesulfonic acid 3-fluoro-propyl ester (34.5 g, 221 mmol) in 250 mL of anhydrous DMF was treated with solid potassium phthalimide (49 g, 265 mmol, 1.2 equiv) at 25° C. The resulting suspension was warmed to 70-80° C. for 2 hours. When 1H NMR showed that the reaction was complete, the reaction mixture was treated with H2O (200 mL). The aqueous solution was extracted with EtOAc (3×100 mL). The combined organic layers were washed with H2O (3×100 mL) and dried over MgSO4. The solvent was removed in vacuo to afford the desired 2-(3-fluoro-propyl)-isoindole-1,3-dione (45.4 g, 45.5 g theoretical, 99.7% yield) as a white powder.

후처리

  1. extractionThe aqueous solution was extracted with EtOAc (3×100 mL)
  2. washThe combined organic layers were washed with H2O (3×100 mL)
  3. dry with materialdried over MgSO4
  4. customThe solvent was removed in vacuo

출처 및 근거

ORD 기록
ord-0e2803f3217b4bb4b17aa4ae98e6e699
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08895741B2

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