Anomalous acid-catalyzed reactions of cyclobutanones

Abstract
The reactions of 2(2-isopropanol)cyclobutanones with phosphorous pentoxide lead to ring opened carboxylic acids. Reaction of 2-isopropylidenecyclobutanones with polyphosphoric acid (PPA) gives ring cleavage rearrangement products. The mechanisms of these reactions are discussed in the light of the observed different reactions of the corresponding cyclopentanones.

This publication has 0 references indexed in Scilit: