Chemistry, asked by prakhara5738, 1 year ago

The best combination of reagents for carrying out the
conversion RCH₂CH₂OH → RCH₂CH₂COOH is
(a) PBr₃, KCN, H₃O⁺ (b) PBr₃, KCN, H₂/Pt
(c) KCN, H₃O⁺ (d) PBr₃, H₃O⁺

Answers

Answered by harshgera003
0

Explanation:

I think the correct answer is (b)

Answered by GulabLachman
0

The best combination of reagents for carrying out the

conversion RCH₂CH₂OH → RCH₂CH₂COOH is

(a) PBr₃, KCN, H₃O⁺

When alcohols are made to react with PBr₃, it forms the respective bromide.

So, RCH₂CH₂OH +  PBr₃ → RCH₂CH₂Br

When alcoholic KCN solution is made to react with alkyl bromide, it forms alkyl cyanide.

RCH₂CH₂Br + KCN  → RCH₂CH₂CN

Next, the alkyl cyanide is hydrolysed to form carboxylic acid.

RCH₂CH₂CN +  H₃O⁺ →RCH₂CH₂COOH (Required product)

So, option (a) is correct.

Similar questions