Question

Methyl benzoate can be prepared by

• A. $C _{6} H _{5} COOH + CH _{3} OH \xrightarrow{ H ^{+}}$
• B. $C _{6} H _{5} COOCl + CH _{3} OH \xrightarrow{\text { Pyridine }}$
• C. $C _{6} H _{5} COOH + CH _{2} N _{2} \rightarrow$
• D. All of the above method

Answer 1

The Correct Option is D

${C_6}{H_5}COOH + C{H_3}OH\xrightarrow{{H^+ }} \underset{\text{methyl benzoate}}{{C_6}{H_5}COOHC{H_3}} + {H_2}O$ (The reaction is methyl benzoate known as Fischer - Sprier esterification reaction.) ${C_6}{H_5}COCl + C{H_3}OH\xrightarrow{\text{Pyridine }}{C_6}{H_5}COOC{H_3} + HCl$ $C _{6} H _{5} COOH +\underset{\text { diazomethane }}{ CH _{2}} \xrightarrow{ N _{2}} C _{6} H _{5} COOCH _{3}+ N _{2}$ (Methyl easters can be prepared by treating carboxylic acid with ethereal solution of diazomethane. Hence, methyl benzoate can be prepared by all these above methods.

Answer 2

Ans. Methyl benzoate is created when benzoic acid and methanol condense in the presence of a strong acid. 

• Methyl benzoate is an organic compound, an ester with the chemical formula C₆H₅CO₂CH₃. 
• When dissolved in a liquid, methyl benzoate can take the form of a solid or a crystalline solid. than water, but denser. 
• Contact may cause mild irritation to mucous membranes, eyes, and skin. 
• By consumption, it could be somewhat hazardous. used to produce different compounds. 
• Methyl benzoate, a benzoate ester, is created when methanol and benzoic acid are combined. 
• It serves as an insect attractant and metabolite.
• It is both a methyl ester and a benzoate ester. 
• In the Fischer Esterification reaction mechanism, an ester is formed by the conversion of carboxylic acid in the presence of excess alcohol and a strong acid as catalysts. 
• The reaction was discovered by Emil Fischer.
• 
• Some disadvantages of the Fischer esterification reaction are:

1. The thermodynamic reversibility of the reaction.
2. The reaction rates are quite slow.

• An energy source is usually needed to promote the Fischer esterification reaction. 
• This energy is usually supplied in the form of heat.