Reactions of β-ketoesters and nitriles with carbon disulphide
作者:L. Jensen、L. Dalgaard、S.-O. Lawesson
DOI:10.1016/s0040-4020(01)97111-x
日期:1974.1
By use of the ion pair extraction technique tetrabutylammonium salts of ethyl and methyl acetoacetate, ethyl benzoylacetate, and cyanoacetone were reacted with CS2 to give salts of dithioacids. Alkylation gave dithio-esters and ketene mercaptals. Rearrangements of allyl and crotyl ketene mercaptals of ethyl and methyl acetoacetate and ethyl benzoylacetate were studied. In the rearrangement of the dicrotyl