Question

How is the following conversion carried out?
2 propanol from ethanol

Answer 1

Hint :Ethanol is made naturally by yeasts fermenting carbohydrates or by petrochemical processes like ethylene hydration. It's used as an antiseptic and disinfectant in medicine. It's utilised as a chemical solvent and in organic compound production. Ethanol is a type of fuel.

Complete Step By Step Answer:
A milder variant of chromic acid is pyridinium chlorochromate (PCC). From primary alcohols to aldehydes and secondary alcohols to ketones, PCC oxidises alcohols one rung up the oxidation ladder. PCC, unlike chromic acid, does not convert aldehydes to carboxylic acids. PCC is a strong oxidizer. It transforms alcohols to carbonyls but is incapable of converting a primary alcohol to a carboxylic acid. Only primary alcohols are converted to aldehydes, whereas secondary alcohols are converted to ketones. Hence the following reaction takes place
. $ C{H_3}C{H_2}OH\xrightarrow[{C{H_2}C{l_2}}]{{PCC}}C{H_3}CHO $ .
A Grignard reagent is an organomagnesium compound with the chemical formula R-Mg-X, with R denoting an alkyl or aryl group and X denoting a halogen. They're made by reacting an aryl halide or an alkyl halide with magnesium in most cases. The Grignard Reaction is a reaction in which an organomagnesium halide (Grignard reagent) is added to a ketone or aldehyde to produce a tertiary or secondary alcohol. A primary alcohol is formed when formaldehyde reacts with it.
Hence we get
 $ {\text{C}}{{\text{H}}_{\text{3}}}{\text{CHO}}\xrightarrow[{{{\text{H}}^{\text{ + }}}{\text{,}}{{\text{H}}_{\text{2}}}{\text{O}}}]{{{\text{C}}{{\text{H}}_{\text{3}}}{\text{MgBr}}}}{\text{C}}{{\text{H}}_{\text{3}}}{\text{ - CH(OH) - C}}{{\text{H}}_{\text{3}}} $
Isopropyl alcohol is a colourless, flammable, and pungent chemical substance. The simplest example of a secondary alcohol is an isopropyl group connected to a hydroxyl group, in which the alcohol carbon atom is bonded to two additional carbon atoms. It's a structural isomer of ethyl methyl ether and 1-propanol. It's a frequent component in antiseptics, disinfectants, and detergents, and it's utilised in the production of a wide range of industrial and home chemicals.

Note :
Water, ethanol, ether, and chloroform are all miscible with isopropyl alcohol. Ethyl cellulose, polyvinyl butyral, a variety of oils, alkaloids, gums, and natural resins are all dissolved by it. Isopropyl alcohol is not miscible with salt solutions, unlike ethanol or methanol, and may be separated from aqueous solutions by adding a salt such as sodium chloride. Salting out is a term used to describe the separation of concentrated isopropyl alcohol into a distinct layer.