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

HRID 1043121

反応式

HRID 1043121 の反応式
[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]

参加物

7

反応物 4

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

生成物 1

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

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

(Tetrahydro-2H-pyran-4-yl)methanol (2.0 g) in tetrahydrofuran (20 mL) was treated with 60% NaH (1.377 g). The solution was stirred for 20 minutes at room temperature. To this solution was added 4-fluoro-3-nitrobenzenesulfonamide (2.84 g) portion-wise. 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.

後処理

  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

出典と根拠

ORDレコード
ord-f0792317ca74453b84c1ceb0301acd60
出典データセット
uspto-grants-2013_10
特許番号
US08557983B2

関連ノート

読み込み中…