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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