In organic chemistry, a ketene is an organic compound of the form RR'C=C=O, where R and R' are two arbitrary monovalent chemical groups (or two separate substitution sites in the same molecule). [1]

Ketene | CH2=C=O or CH2=CO or C2H2O | CID 10038 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity …

Jun 27, 2016 · Ketene (systematic name ethenone) is a colorless, toxic gas with a “penetrating” odor, according to the Merck Index. It is soluble in essentially all organic solvents, but it decomposes in …

It was already known that pyrolysis of phenyl acetate affords the toxic and highly reactive unsaturated ketone, ketene. Vitamin E acetate also contains an acetate group attached to a benzene ring. …

Dec 1, 2025 · Ketene is a valuable organic reagent, also known as ethenone, and it is high reactivity. German chemist Hermann Staudinger revealed the ketene preparation of organic compounds end of …

ketene, any of a class of organic compounds containing the functional grouping C=C=O; the most important member of the class being ketene itself, CH 2 =C=O, which is used in the manufacture of …

Substances with cumulated carbonyl and carbon-carbon double bonds are called ketenes and, as may be expected, have interesting and unusual properties. Ketene has a boiling point of −56° …

Ketene is a highly reactive compound that reacts with compounds that have an easily substituted hydrogen atom to produce acetic acid derivatives. The reaction of ketene with acetic acid to form …

Vogt, Williamson, et al., 1978 Vogt, J.; Williamson, A.D.; Beauchamp, J.L., Properties and reactions of ketene in the gas phase by ion cyclotron resonance spectroscopy and photoionization mass …

Ketene (ethenone) is present mainly as a lactone. Ketenes and ketene dimers have various practical applications such as paper sizing.