Reactions of ketene acetals, ketene thioacetals, and ketene aminals with ethyl benzoylazocarboxylate was written by Hall, J. Herbert;Wojciechowska, Magdalena. And the article was included in Journal of Organic Chemistry in 1978.Electric Literature of C9H9ClO2 This article mentions the following:
Et benzoylazocarboxylate (I) reacts regiospecifically at room temperature with ketene acetals [e.g. PhCH:C(OMe)2] to give 2-phenyl-4-carboethoxy-6,6-dialkoxy-5,6-dihydrooxadiazines (e.g. II) together with 1,1-dialkoxy-2-(N-carboethoxy-N‘-benzoylhydrazinyl)ethylenes. Treating ketene thioacetals similarly gives only the hydrazinylketene dialkyl thioacetals. 1,1-Di(N-morpholinyl)ethylene reduces I to the dianion and a paramagnetic species, probably the cation radical of the aminal. In the experiment, the researchers used many compounds, for example, Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6Electric Literature of C9H9ClO2).
Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Electric Literature of C9H9ClO2
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics