Title of article
An Expedient Approach to the Synthesis of Chloroacetic, Dichloroacetic and Acetic Acid Catalyzed by Sulfuric Acid in the Presence of Crown Ethers
Author/Authors
Perveen, Shahnaz PCSIR Laboratories Complex, Pakistan , Sarfaraz, Tahira B. PCSIR Laboratories Complex, Pakistan , Khan, Khalid M. University of Karachi - H E J Research Institute of Chemistry - International Center for Chemical and Biological Sciences, Pakistan , Voelter, Wolfgang Universität Tübingen - Interfakultäres Institut für Biochemie, Germany
From page
940
To page
942
Abstract
Chloroacetic (1a), dichloroacetic (2a) and acetic acid (3a) were prepared by direct transformation of trichloroethylene, tetrachloroethylene and 1,1-dichloroethylene, respectively, using sulfuric acid in the presence of catalytic amounts of crown ethers. The newly developed method increases the reaction rate by suppressing the formation of by-products, and 1a, 2a and 3a were obtained in good yields at decreasedreaction temperatures and concentrations of sulfuric acid compared to conventional methods.
Keywords
Chloroacetic acid , dichloroacetic acid , acetic acid and crown ethers
Journal title
letters in organic chemistry
Journal title
letters in organic chemistry
Record number
2718104
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