Markovnikov rule

noun

Mar·​kov·​ni·​kov rule

märˈkȯvnəˌkȯf-

: a statement in chemistry: in the addition of compounds to olefins the negative portion of the compound added (as the bromine in hydrogen bromide) becomes attached to the least hydrogenated end of the carbon-carbon double bond (as in the addition of hydrogen bromide to propylene: CH₃CH=CH₂+HBr→CH₃CHBrCH₃)

Word History

Etymology

after Vladimir V. Markovnikov †1904 Russian chemist

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