Cyclobutanone
![Synthesis of cyclobutanone from cyclobutanecarboxylic acid](/Images/godic/202501/07/Cyclobutanone_Formation1_V.1.svg1452.png")
![Preparation of cyclobutanone from diazomethane and ketene via cyclopropanone](/Images/godic/202501/07/Cyclobutane_Synthesis_V.1.svg1452.png")
Cyclobutanone is an organic compound with molecular formula C4H6O. It is a four-membered cyclic ketone (cycloalkanone). Unlike cyclopropanone, the smallest but extremely volatile cyclic ketone, cyclobutanone is a stable liquid at room temperature and can be distilled.