Hydrochloric Acid → 1-Acetoxy-1-(3-chlorophenyl)-2-(2-methanesulfonyloxyethoxy)ethane

HRID 862504Notes

Reaction equation

HRID 862504 reaction equation
[C:1]([O:4][CH:5]([C:11]1[CH:16]=[CH:15][CH:14]=[C:13]([Cl:17])[CH:12]=1)[CH2:6][O:7][CH2:8][CH2:9][OH:10])(=[O:3])[CH3:2].[CH3:18][S:19](Cl)(=[O:21])=[O:20].Cl>C(Cl)Cl.C(N(CC)CC)C>[C:1]([O:4][CH:5]([C:11]1[CH:16]=[CH:15][CH:14]=[C:13]([Cl:17])[CH:12]=1)[CH2:6][O:7][CH2:8][CH2:9][O:10][S:19]([CH3:18])(=[O:21])=[O:20])(=[O:3])[CH3:2]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 31297Methanesulfonyl chlorideHCID 537909691-Acetoxy-1-(3-chlorophenyl)-2-(2-hydroxyethoxy)ethane

Product 1

HCID 536841961-Acetoxy-1-(3-chlorophenyl)-2-(2-methanesulfonyloxyethoxy)ethane

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 8471TriethylamineSolvent

Procedure

To a mixture of 19.0 g of 1-acetoxy-1-(3-chlorophenyl)-2-(2-hydroxyethoxy)ethane and 95.0 ml of methylene chloride containing 9.1 ml of methanesulfonyl chloride was dropwise added 16.4 ml of triethylamine with ice cooling over 1 hour. The resulting mixture was stirred for 10 minutes at the same temperature and further for 1 hour at room temperature. The reaction mixture was added to a mixture of 50.0 ml of methylene chloride and 50.0 ml of ice water. The resulting mixture was adjusted to pH 2.0 with 6N hydrochloric acid. The organic layer was separated, washed with water and dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure to obtain 24.5 g of oily 1-acetoxy-1-(3-chlorophenyl)-2-(2-methanesulfonyloxyethoxy)ethane.

Workup

  1. customover 1 hour
  2. customThe organic layer was separated
  3. washwashed with water
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was removed by distillation under reduced pressure

Sources & evidence

ORD record
ord-bc637e229f8744d783453862fc2996e8
Source dataset
uspto-grants-1998_02
Patent number
US05719150

Reaction notes

Loading…