Halides oxido compds

Partial dehydrohalogenation. A mixture of 1,1,2,2-tetrachlorethane, ethylene oxide, and tetra-n-butylammonium chloride heated 5 hrs. at 100° in a sealed tube or autoclave -> trichlorethylene. Y 92% (purity 95%). - Oxido compds. act as bases in the presence of halide ions. F. e. with lower yields and limitations s. J. Buddrus and W. Kimpenhaus, B. 106, 1648 (1973). 

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