Chemistry of acetylenic ethers XXVIII: α,α‐Dichlorodiethyl ether and its use for the preparation of acyl chlorides

Abstract

Addition of two equivalents of hydrogen chloride to ethoxyacetylene yields α,α‐dichlorodiethyl ether (III). This substance reacts easily with carboxylic acids to yield acyl chlorides (X). α, α, β ‐Trichlorodiethyl ether (XIII), obtainable in two steps from trichloroethene (XI), shows the same reaction.