Pyridine → HCID 19860691、化合物

HRID 232176ノート

反応式

HRID 232176 の反応式
[F:1][C:2]([F:8])([CH2:5][CH2:6][OH:7])[CH2:3][OH:4].N1C=CC=CC=1.[CH3:15][S:16](Cl)(=[O:18])=[O:17]>ClCCl>[CH3:15][S:16]([O:4][CH2:3][C:2]([F:8])([F:1])[CH2:5][CH2:6][O:7][S:16]([CH3:15])(=[O:18])=[O:17])(=[O:18])=[O:17]

参加物

5

反応物 3

HCID 1049PyridineHCID 31297Methanesulfonyl chlorideHCID 13935577108781-20-0

生成物 1

HCID 19860691HCID 19860691、化合物

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a stirred mixture of 2,2-difluoro-1,4-butanediol (12.97 g, 103 mM), dry pyridine (65 mL) and dichloromethane (200 mL) is slowly added a solution of methanesulfonylchloride (23.6 g) in dichloromethane (50 mL). Stirring is continued overnight. The reaction mixture is washed with 2N HCl (twice), followed by 10% aqueous NaHCl3 until neutral, and then with water. The organic layer is dried (MgSO4) and upon evaporation of the solvents, a slightly yellow oil is obtained. Crystallization is induced by scratching the oil with dry ether, to yield the compound 1,4-bis-methanesulfonyloxy-2,2-difluorobutane as white crystals: 22.3 g (77%).

後処理

  1. washThe reaction mixture is washed with 2N HCl (twice),
  2. dry with materialThe organic layer is dried (MgSO4)
  3. customupon evaporation of the solvents
  4. customa slightly yellow oil is obtained
  5. customCrystallization

出典と根拠

ORDレコード
ord-03bfc74d57ed42f2a934f130e2d55f2b
出典データセット
uspto-grants-1989_07
特許番号
US04851448

反応ノート

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