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

HRID 1096335Notes

Reaction equation

HRID 1096335 reaction equation
[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>[CH3:19][S:20]([O:11][CH2:10][CH2:9][C:4]1([CH:1]([CH3:3])[CH3:2])[O:8][CH2:7][CH2:6][O:5]1)(=[O:22])=[O:21]

Participants

5

Reactant 3

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

Product 1

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

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

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 rt till the reaction was finished. The reaction mixture was washed with water and brine, dried over Na2SO4, filtered, and concentrated to give the crude 2-(2-isopropyl-1,3-dioxolan-2-yl)ethyl methanesulfonate (12 g, crude), which was used for the next step without further purification.

Workup

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

Sources & evidence

ORD record
ord-b93af52e1b3a4ec49b28e2764fbfbe3d
Source dataset
uspto-grants-2012_03
Patent number
US08138178B2

Reaction notes

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