What Is Addition Reaction Give One Example
For example addition of HCl acetic acid and hydrocyanic acid to acetylene give respectively the useful monomers vinyl chloride vinyl acetate and acrylonitrile as shown in the following equations. In an addition reaction the number of σ-bonds in the substrate molecule increases usually at the expense of one or more π-bonds.
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An example is the reaction in which the chlorine atom in the chloromethane molecule is displaced by the hydroxide ion forming.
What is addition reaction give one example. Inorganic compounds such as metals also undergo halogenation. Note that in these and many other similar reactions transition metals such. In chemistry halogenation is a chemical reaction that involves the addition of one or more halogens to a compound or material.
A useful carbon-carbon bond-forming reaction known as the Aldol Reaction is yet another example of electrophilic substitution at the alpha carbon in enolate anions. The pathway and stoichiometry of halogenation depends on the structural features and functional groups of the organic substrate as well as on the specific halogen. A typical modern aldol addition reaction shown above might involve the nucleophilic addition of a ketone enolate to an aldehydeOnce formed the aldol product can sometimes lose a molecule of water to form an αβ-unsaturated carbonyl compoundThis is called aldol condensationA variety of nucleophiles may be employed in the aldol reaction including the enols enolates and enol ethers of.
The reverse is true of elimination reactions iethe number of σ-bonds in the substrate decreases and new π-bonds are often formedSubstitution reactions as the name implies are characterized by replacement of an atom or group Y by another atom or group Z. Substitution reaction any of a class of chemical reactions in which an atom ion or group of atoms or ions in a molecule is replaced by another atom ion or group. The fundamental transformation in this reaction is a dimerization of an aldehyde or ketone to a beta-hydroxy aldehyde or ketone by alpha CH addition of one reactant molecule.
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