Cyclopropanone

"Cyclopropanone is an organic compound with molecular formula C₃H₄O consisting of a cyclopropane carbon framework with a ketone functional group. The parent compound is labile with melting point −90 °C and has been prepared by reaction of ketene with diazomethane at −145 °C.^[1][2] Derivatives of cyclopropanone are of some interest to organic chemistry."

"In organic synthesis the use of cyclopropanone itself is substituted by that of synthons like acetals cyclopropanone ethyl hemiacetal^[4] or cyclopropanone ethyl trimethylsilyl acetal."