Application In Synthesis of Diethyl cyclobutane-1,1-dicarboxylate《A novel ring expansion of 1-carbethoxy-1,1-trimethylene-3-diazo-2-propanone》 was published in 1986. The authors were Miller, R. D.;Theis, W., and the article was included in《Tetrahedron Letters》. The author mentioned the following in the article:
Gas phase pyrolysis of title compound I gave butenolide II via ring enlargement initiated by the intramol. reaction of the intermediate ketene III with the pendant ester group. The experimental procedure involved many compounds, such as Diethyl cyclobutane-1,1-dicarboxylate (cas: 3779-29-1) .
Diethyl 1,1-cyclobutanedicarboxylate(cas:3779-29-1 Application In Synthesis of Diethyl cyclobutane-1,1-dicarboxylate) reacts with silicon to form diethyl esters and magnesium to form magnesium salts. The reaction time for this compound is short, which may be due to its ability to undergo debromination.
Reference:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics