Aldehydes and Ketones

Vocabulary

alcohol

hydrocarbon containing a hydroxyl functional group

aldehyde

organic compound that contains a carbonyl group (C=O{\rm{C{=}O}} ) bound to one alkyl (R{-}{\rm {R}} ) fragment and one hydrogen atom, with RC(=O)H {\rm{RC({=}O)H}} or RCHO {\rm{R{-}CHO}} stoichiometry

carbonyl

functional group in which a carbon atom is double bonded to an oxygen atom

demercuration

second step in the hydration of alkenes, where the acetoxymercury group is reduced with sodium borohydride to a hydrogen atom

Dess-Martin periodinane

aromatic reagent that contains a cyclic ring with a pentavalent (five-bonded) iodine

electronics

charge or electrical factors that influence an atom or molecule

keto-enol tautomerism

chemical equilibrium between a ketone or aldehyde and an enol

ketone

organic compound that contains a carbonyl group (C=O{\rm{C{=}O}}) bound to two alkyl (R{-}{\rm {R}} ) fragments (which are the same, R and R, or different, R and R′) with RC(=O)R {\rm{RC({=}O)R'}} or RCOR′ stoichiometry

mercurinium

positively charged mercury ion

oxidation

reaction that involves the removal of an electron from an atom

oxymercuration

reaction of an alkene with mercury(II) acetate in aqueous THF to form a three-membered mercurinium ion

ozonolysis

cleavage of an alkene, alkyne, or azo group with ozone

primary alcohol

alcohol with a hydroxyl group attached to a carbon that also has two hydrogen atoms attached to it

reduction

reaction that involves the addition of an electron to an atom

secondary alcohol

alcohol with a hydroxyl group attached to a carbon that also has only one hydrogen atom attached to it

sterics

size, arrangement, and spatial factors that influence an atom or molecule

Swern oxidation

mild method of converting a primary alcohol into an aldehyde without the use of chromium reagents

tautomer

one of two or more constitutional isomers that differ only in the placement of a single proton