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JEE Main 201610 AprilOnline
Exam
JEE Main
Year
2016
Date
10 April
Mode
Online
Subject
Chemistry
Chapter
Alcohols Phenols and Ethers

JEE Main 2016 · 10 April · Online · Chemistry · Alcohols Phenols and Ethers

The correct statement about the synthesis of erythritol (C (C H _ 2...

The correct statement about the synthesis of erythritol (C(CH2 OH )4)\left(C{\left(C{H}_{2}\text{ OH }\right)}_{4}\right) used in the preparation of PETN isThe correct statement about the synthesis of erythritol (C (C H _ 2 OH ) _ 4 ) used in the preparation of PETN is

Options

  1. AThe synthesis requires three aldol condensations and one Cannizzaro reaction.
  2. BAlpha hydrogen of ethanol and methanol are involved in this reaction.
  3. CThe synthesis requires two aldol condensation and two Cannizzaro reactions.
  4. DThe synthesis requires four aldol condensations between methanol and ethanol.

Correct answer

A. The synthesis requires three aldol condensations and one Cannizzaro reaction.

Step-by-step solution

The correct statement about the synthesis of erythritol (C (C H _ 2 OH ) _ 4 ) used in the preparation of PETN is

The first three steps are Aldol condensations followed by one Cannizzaro reaction step in presence of base. In final step a salt of formic acid will also be formed as side product.

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