Question

Write the chemical equation for the following:
A.Gattermann – Koch formulation
B.Rosenmund reduction
Fischer esterification
Hell – Volhard – Zelensky reaction

Answer 1

Hint: In a chemical equation, the reactants are written on the left, and the products are written on the right. The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.
Complete step by step answer:
- Name reaction is a chemical reaction which is named after the person who developed or discovered it. Hundreds of well-known organic reactions have been named after people.
Gattermann – Koch Reaction: The Gattermann–Koch reaction is named after the German chemists Julius Arnold Koch and Ludwig Gattermann. In a Gattermann–Koch reaction refers to a Friedel–Crafts acylation reaction in which a Friedel–Crafts catalyst, hydrochloric acid, and carbon monoxide are used to produce aromatic aldehydes from various aromatic compounds, including derivatives of naphthalene and benzene. Click here for an in-depth explanation of the reaction details and mechanism of Gattermann – Koch Reaction.

Rosenmund Reduction: The Rosenmund reduction was named after Karl Wilhelm Rosenmund, who in 1918 reported its discovery. A hydrogenation process in which an acyl chloride is selectively reduced to an aldehyde.

Fischer Esterification: Fischer Esterification is an organic reaction which is employed to convert carboxylic acids in the presence of excess alcohol and a strong acid catalyst to give an ester as the final product. Visit Fischer Esterification for more information.

                            Carboxylic acid ester

Hell-Volhard-Zelinsky Reaction: The Hell-Volhard-Zelinsky reaction is used for the halogenation of carboxylic acids at the alpha carbon. Click here for an in-depth explanation of the reaction details and mechanism of Hell-Volhard-Zelinsky Reaction.

                                                                                                         \[\text{ }\!\!\alpha\!\!\text{ -halo acid}\]

Note:
The method of representing a chemical reaction with the help of symbols and formulae of the substances involved in it is known as chemical equation. For example, zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas.