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Butanone, also known as methyl ethyl ketone (MEK) or ethyl methyl ketone, [a] is an organic compound with the formula CH 3 C(O)CH 2 CH 3. This colorless liquid ketone has a sharp, sweet odor reminiscent of acetone. It is produced industrially on a large scale, but occurs in nature only in trace amounts. [7]
In organic chemistry, a ketone / ˈ k iː t oʊ n / is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group −C(=O)− (a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' is methyl), with the formula (CH 3) 2 CO ...
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Examples are the reaction of ethyl acetoacetate and sodium nitrite in acetic acid, [4] [5] the reaction of methyl ethyl ketone with ethyl nitrite in hydrochloric acid. [6] and a similar reaction with propiophenone, [7] the reaction of phenacyl chloride, [8] the reaction of malononitrile with sodium nitrite in acetic acid [9]
Methyl vinyl ketone (MVK, IUPAC name: butenone) is the organic compound with the formula CH 3 C(O)CH=CH 2. It is a reactive compound classified as an enone , in fact the simplest example thereof. It is a colorless, flammable, highly toxic liquid with a pungent odor.
Chemical structure of the vinyl functional group. In organic chemistry , a vinyl group (abbr. Vi ; [ 1 ] IUPAC name : ethenyl group [ 2 ] ) is a functional group with the formula −CH=CH 2 . It is the ethylene (IUPAC name: ethene) molecule ( H 2 C=CH 2 ) with one fewer hydrogen atom.
Methyllithium is mainly used as the synthetic equivalent of the methyl anion synthon. For example, ketones react to give tertiary alcohols in a two-step process: Ph 2 CO + MeLi → Ph 2 C(Me)OLi Ph 2 C(Me)OLi + H + → Ph 2 C(Me)OH + Li + Nonmetal halides are converted to methyl compounds with methyllithium: PCl 3 + 3 MeLi → PMe 3 + 3 LiCl
Methyl ethyl ketone peroxide (MEKP) is an organic peroxide with the formula [(CH 3)(C 2 H 5)C(O 2 H)] 2 O 2. MEKP is a colorless oily liquid. It is widely used in vulcanization (crosslinking) of polymers. [3] It is derived from the reaction of methyl ethyl ketone and hydrogen peroxide under acidic conditions.