Triethylamine → 2-(2-Isopropyl-1,3-dioxolan-2-yl)ethyl methanesulfonate

HRID 80980노트

반응식

HRID 80980 반응식
[CH:1]([C:4]1([CH2:9][CH2:10][OH:11])[O:8][CH2:7][CH2:6][O:5]1)([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:19][S:20](Cl)(=[O:22])=[O:21]>C(Cl)Cl>[CH:1]([C:4]1([CH2:9][CH2:10][O:11][S:20]([CH3:19])(=[O:22])=[O:21])[O:8][CH2:7][CH2:6][O:5]1)([CH3:3])[CH3:2]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 141623372-[2-(Propan-2-yl)-1,3-dioxolan-2-yl]ethan-1-ol

생성물 1

HCID 107051032-(2-Isopropyl-1,3-dioxolan-2-yl)ethyl methanesulfonate수율 100.7%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a solution of 2-(2-isopropyl-1,3-dioxolan-2-yl)-ethanol (8.0 g, 50 mmol) and triethylamine (23.5 mL, 170 mmol) in anhydrous CH2Cl2 (120 mL) was added methanesulfonyl chloride (11.6 mL, 150 mmol) at 0° C., and the reaction mixture was stirred at room temperature till the reaction was finished. The reaction mixture was washed with water and brine, dried over Na2SO4, filtered, and concentrated to give the crude methanesulfonic acid 2-(2-isopropyl-[1,3]dioxolan-2-yl)-ethyl ester (12 g), which was used for the next step without further purification.

후처리

  1. washThe reaction mixture was washed with water and brine
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-1a15484b2a5546a3a8afc2433a8478aa
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846668B2

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