Hydrochloric Acid → 3-nitro-4-((tetrahydro-2H-pyran-4-yl)methoxy)benzenesulfonamide

HRID 629615

반응식

HRID 629615 반응식
[O:1]1[CH2:6][CH2:5][CH:4]([CH2:7][OH:8])[CH2:3][CH2:2]1.[H-].[Na+].F[C:12]1[CH:17]=[CH:16][C:15]([S:18]([NH2:21])(=[O:20])=[O:19])=[CH:14][C:13]=1[N+:22]([O-:24])=[O:23].Cl>O1CCCC1.O>[N+:22]([C:13]1[CH:14]=[C:15]([S:18]([NH2:21])(=[O:19])=[O:20])[CH:16]=[CH:17][C:12]=1[O:8][CH2:7][CH:4]1[CH2:5][CH2:6][O:1][CH2:2][CH2:3]1)([O-:24])=[O:23]

참가 물질

7

반응물 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 2773573(Oxan-4-yl)methanolHCID 167824874-Fluoro-3-nitrobenzenesulfonamide

생성물 1

HCID 671264583-nitro-4-((tetrahydro-2H-pyran-4-yl)methoxy)benzenesulfonamide

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

(Tetrahydro-2H-pyran-4-yl)methanol (2.0 g) in tetrahydrofuran (20 mL) was treated with 60% NaH (1.377 g). The mixture was stirred for 20 minutes at the room temperature. To this mixture was added 4-fluoro-3-nitrobenzenesulfonamide (2.84 g) portionwise. The reaction was stirred for another 2 hours. The mixture was poured into water, neutralized with 10% HCl, and extracted with ethyl acetate three times. The combined organic layers were washed with brine, dried over MgSO4, filtered, and concentrated. The residue was purified with flash column chromatography on silica gel eluting with 20%-60% ethyl acetate in hexanes.

후처리

  1. stirringThe reaction was stirred for another 2 hours
  2. extractionextracted with ethyl acetate three times
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe residue was purified with flash column chromatography on silica gel eluting with 20%-60% ethyl acetate in hexanes

출처 및 근거

ORD 기록
ord-5c1bb051f1fa47e3a8c3171b1a8d5c25
출처 데이터셋
uspto-grants-2016_04
특허 번호
US09315488B2

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