Cyclopentanone is the organic compound with the formula (CH2)4CO. This cyclic ketone is a colorless volatile liquid.
Preparation Ketonic decarboxylation of adipic acid gives cyclopentanone. The reaction is conducted at elevated temperatures in the presence of barium hydroxide.
The Pd-catalyzed oxidation of cyclopentene also gives cyclopentanone.
Uses Cyclopentanone is common precursor to fragrances, especially those related to jasmine and jasmone. Examples include 2-pentyl- and 2-heptylcyclopentanone.Johannes Panten and Horst Surburg "Flavors and Fragrances, 2. Aliphatic Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2015, Wiley-VCH, Weinheim. It is a versatile synthetic intermediate, being a precursor to cyclopentobarbital.
Cyclopentanone is also used to make cyclopentamine, the pesticide pencycuron, and pentethylcyclanone.
It is also used as a precursor to cubane-1,4-dicarboxylate, which is used to synthesize other substituted cubanes, such as the high explosives heptanitrocubane and octanitrocubane.
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