Question

how to convert ethanoic acid to methanoic acid

Answer 1

this is your answers.

Answer 2

Steps to convert ethanoic acid to methanoic acid

• The chemical formula of ethanoic acid which is also known as acetic acid is $CH_3COOH$.
• To ethanoic acid, ammonia is added and the mixture is heated which leads to the formation of acetamide ($CH_3CONH_2$).

$\mathrm{CH}_{3} \mathrm{COOH}+\mathrm{NH}_{3} \stackrel{\Delta}{\rightarrow} \mathrm{CH}_{3} \mathrm{CONH}_{2}$

• When the acetamide is treated with $Br_2 and KOH$, the ketone group (CO) gets eliminated and leads to the formation of methyl amine ($CH_3NH_2$).

$\mathrm{CH}_{3} \mathrm{CONH}_{2} \stackrel{\mathrm{Br}_{2} / \mathrm{KOH}}{\longrightarrow} \mathrm{CH}_{3} \mathrm{NH}_{2}$

• When to the obtained solution if nitrous acid is added, it leads to the elimination of amine group and yields methanol ($CH_3OH$) as the product.

$\mathrm{CH}_{3} \mathrm{NH}_{2} \stackrel{\mathrm{HNO}_{2}}{\longrightarrow} \mathrm{CH}_{3} \mathrm{OH}$

• When it is subjected to partial oxidation in the presence of PCC, it gets converted into formaldehyde (HCHO).

$C H_{3} O H \stackrel{P C C}{\longrightarrow} H C H O$

• Further oxidation of formaldehyde yields formic acid (HCOOH) as the end product.

$H C H O \stackrel{[O]}{\rightarrow} H C O O H$

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