Preparation of Dichloroacetaldehyde Cyclic Trimer and Its Depolymerization

1993 
Abstract Dichlorination of paraldehyde followed by hydration gave white crystals of dichloroacetaldehyde(DCA) hydrate which were treated with concd sulfuric acid at 0 °C to afford a cyclic trimer of DCA as a quite stable precursor of DCA.
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