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If it connects at one of the non-terminal (internal) carbon atoms, it is secondary butyl or sec-butyl: −CH(CH 3)−CH 2 −CH 3 (preferred IUPAC name: butan-2-yl) The second isomer of butane, isobutane, can also connect in two ways, giving rise to two additional groups:
Butanol (also called butyl alcohol) is a four-carbon alcohol with a formula of C 4 H 9 O H, which occurs in five isomeric structures (four structural isomers), from a straight-chain primary alcohol to a branched-chain tertiary alcohol; [1] all are a butyl or isobutyl group linked to a hydroxyl group (sometimes represented as BuOH, sec-BuOH, i-BuOH, and t-BuOH).
The uses of isobutanol and 1-Butanol are similar. They are often used interchangeably. The main applications are as varnishes and precursors to esters, which are useful solvents, e.g. isobutyl acetate. Isobutyl esters of phthalic, adipic, and related dicarboxylic acids are common plasticizers. [5] Isobutanol is also a component of some biofuels ...
The terms sec and tert are considered obsolete and should only be used for unsubstituted sec-butoxy, sec-butyl [26] [27] or tert-butyl groups. [ 28 ] [ 27 ] There are various spellings such as "sec-butyl", "s-butyl", "sBu" or "bus" which are also considered obsolete.
It is manufactured from acetic acid and isobutylene. [1] An attempt at Fischer esterification would lead to elimination of tert-butyl alcohol to isobutylene. Butyl acetate has four isomers (or five, including stereoisomers): tert-butyl acetate, n-butyl acetate, isobutyl acetate, and sec-butyl acetate (two enantiomers).
Isobutylamine is an organic chemical compound (specifically, an amine) with the formula (CH 3) 2 CHCH 2 NH 2, and occurs as a colorless liquid. [1] [2] Isobutylamine is one of the four isomeric amines of butane, the others being n-butylamine, sec-butylamine and tert-butylamine.
1-pentanol or normal amyl alcohol primary Pentan-1-ol: 138.5 2-methyl-1-butanol or active amyl alcohol primary 2-Methylbutan-1-ol: 128.7 3-methyl-1-butanol or isoamyl alcohol or isopentyl alcohol primary 3-Methylbutan-1-ol: 131.2 2,2-dimethyl-1-propanol or neopentyl alcohol primary 2,2-Dimethylpropan-1-ol: 113.1 2-pentanol or sec-amyl alcohol
tert-Butylbenzene can be produced by the treatment of benzene with isobutene [1] or by the reaction of benzene with tert-butyl chloride in presence of anhydrous aluminium chloride, [2] the latter is depicted below: