Microwave assisted reaction using solvents

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Microwave assisted reaction using solvents

 Microwave assisted reaction using solvents

HYDROLYSIS:--hydrolysis of benzyl chloride with water in microwave oven gives 97% yield of benzyl alcohol in 3 min. The usual hydrolysis in normal way takes about 35min


The usual hydrolysis of bezamide takes 1 hr.  However, under microwave conditions, the hydrolysis is completed in 7 min giving 99% yield of benzoic acid.

2..OXIDATION

oxidation of toluene with KMNO4 under normalized conditions of refluxing takes 10-12 hr compared to reaction in microwave conditions, wich takes only 5 min and yield is 40%

 

A number of primary alcohols can be oxidized to the corresponding carboxylic acid using sodium tungstate as catalyst in 30% aqueous hydrogen peroxide 

3...ESTERIFICATION:---A mixture of benzoic acid and n -propanol on heating in a microwave oven for 6min in the presence of catalytic amount of conc. Sulfuric acid gives propyl benzoate



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