Online Encyclopedia

KETONES

Online Encyclopedia
Originally appearing in Volume V15, Page 762 of the 1911 Encyclopedia Britannica.
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KETONES, in chemistry, organic compounds of the type R • CO • R', where R, R' = alkyl or aryl groups. If the groups, R and R' are identical, the ketone is called a simple ketone, if unlike, a mixed ketone. They may be prepared by the oxidation of secondary alcohols; by the addition of the elements of water to hydrocarbons of the acetylene type RC CH ; by oxidation of primary alcohols of the type RR'•CH•CH2OH:RR'•CH•CH2OH -~ R•CO•R'+H2O+H2CO2; by distillation of the calcium salts of the fatty acids, CnH23102; by heating the sodium salts of these acids C.H2n02 with the corresponding acid anhydride to 19o° C. (W. H. Perkin, Jour. Chem. Soc., 1886, 49, p. 322); by the action of anhydrous ferric Chloride on acid chlorides (J. Hamonet, Bull. de la soc. chim., 1888, 50, p. 357), 2C2HSO001 C2H6• CO . CH(CH3) • CO CI
End of Article: KETONES
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BARON VON WILHELM EMMANUEL KETTELER (1811-1877)

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