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Pivalic acid is prepared on a commercial scale by hydrocarboxylation of isobutene via the Koch reaction: (CH 3) 2 C=CH 2 + CO + H 2 O → (CH 3) 3 CCO 2 H. Such reactions require an acid catalyst such as hydrogen fluoride. tert-Butyl alcohol and isobutyl alcohol can also be used in place of isobutene. Globally, several million kilograms are ...
Pivaldehyde is an organic compound, more specifically an aldehyde.Shown in the image is a line-angle representation of this organic aldehyde, whose systematic name, 2,2-dimethylpropanal, is based on the longest carbon chain (three carbon atoms), ending in "-al" to indicate the aldehyde functionality, and where another descriptive synonym is trimethylacetaldehyde. [2]
Standard acid catalysts are sulfuric acid or a mixture of BF 3 and HF. Although the use of acidic ionic liquids for the Koch reaction requires relatively high temperatures and pressures (8 MPa and 430 K in one 2006 study [ 9 ] ), acidic ionic solutions themselves can be reused with only a very slight decrease in yield, and the reactions can be ...
3,3'-Dichlorobenzidine is an organic compound with the formula (C 6 H 3 Cl(NH 2)) 2. The pure compound is pale yellow, but commercial samples are often colored. It is barely soluble in water and is often supplied as a wet paste. It is widely used in the production of diarylide yellow pigments used in the production of printing inks. [3]
3-Methylbutanoic acid (isovaleric acid) ... Pivalic acid; Propyl acetate; Tetrahydrofurfuryl alcohol; Valeric acid This page was last edited on 30 December 2021, at ...
Dichloroacetic acid (DCA), sometimes called bichloroacetic acid (BCA), is the organic compound with formula CHCl 2 CO 2 H. It is an analogue of acetic acid, in which 2 of the 3 hydrogen atoms of the methyl group have been replaced by chlorine atoms. Like the other chloroacetic acids, it has various practical applications.
It was first made by Aleksandr Butlerov in 1874 by reacting pivalic acid with phosphorus pentachloride. [ 2 ] Pivaloyl chloride is used as an input in the manufacture of some drugs, insecticides and herbicides.
In chemistry, an acid dissociation constant (also known as acidity constant, or acid-ionization constant; denoted ) is a quantitative measure of the strength of an acid in solution. It is the equilibrium constant for a chemical reaction