reported a reaction of trlethyl trlthioorthoacetate with acetyl chloride to form ketene diethyl dithloacetal and thlolacetate. In our experiment with (ArSJaCCHs and acetyl chloride, no reaction occurred. However, If a small amount of acetic acid was present, resinous materials were produced, probably derived from the ketene dithloacetal.(4) M. Ho jo and R. Masuda, unpublished work. Acylation of ketene dithioacetals, vinyl sulfides, vinyl ethers, and vinyl amides will be reported In our forthcoming papers. (5) G. A. Wilds chut, H.
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