Triethylamine → (S)-tetrahydrofuran-3-yl methanesulfonate

HRID 2280629ノート

反応式

HRID 2280629 の反応式
[O:1]1[CH2:5][CH2:4][C@H:3]([OH:6])[CH2:2]1.C(N(CC)CC)C.[CH3:14][S:15](Cl)(=[O:17])=[O:16]>ClCCl>[CH3:14][S:15]([O:6][C@H:3]1[CH2:4][CH2:5][O:1][CH2:2]1)(=[O:17])=[O:16]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 2733227(S)-(+)-3-Hydroxytetrahydrofuran

生成物 1

HCID 57561588(S)-tetrahydrofuran-3-yl methanesulfonate収率 92.5%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

(S)-Tetrahydrofuran-3-ol 2a (300 mg, 3.40 mmol) and triethylamine (687 mg, 6.80 mmol) were dissolved in 20 mL of dichloromethane in an ice bath, followed by addition of methanesulfonyl chloride (908 mg, 7.93 mmol). The reaction solution was warmed up to room temperature and stirred for 2 hours. The resulting solution was mixed with 10 mL of dichloromethane, washed with water (30 mL×2), dried with anhydrous magnesium sulphate, and filtered. The filtrate was concentrated under reduced pressure to obtain the crude title compound (S)-tetrahydrofuran-3-yl methanesulfonate 2b as a yellow oil (522 mg, yield 92.5%).

後処理

  1. washwashed with water (30 mL×2)
  2. dry with materialdried with anhydrous magnesium sulphate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated under reduced pressure

出典と根拠

ORDレコード
ord-e1fb6075bf03430ca64d3ab781cae1be
出典データセット
uspto-grants-2015_09
特許番号
US09139548B2

反応ノート

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