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JEE Main 202229 JulyMorning Shift
Exam
JEE Main
Year
2022
Date
29 July
Shift
Morning Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2022 · 29 July · Morning Shift · Chemistry · Aldehydes and Ketones

Consider the following reaction sequence The product ' B ' is

Consider the following reaction sequence

Consider the following reaction sequence The product ' B ' is

The product 'BB' is

Options

  1. AGiven below are two statements: Statement (I) : The NH _ 2 group in Aniline is ortho and para directing and a powerful
  2. BGiven below are two statements: Statement (I) : The NH _ 2 group in Aniline is ortho and para directing and a powerful
  3. CGiven below are two statements: Statement (I) : The NH _ 2 group in Aniline is ortho and para directing and a powerful
  4. DGiven below are two statements: Statement (I) : The NH _ 2 group in Aniline is ortho and para directing and a powerful

Correct answer

B. Given below are two statements: Statement (I) : The NH _ 2 group in Aniline is ortho and para directing and a powerful

Step-by-step solution

Diisobutylaluminium hydride, AlH(i−Bu)2AlH ( i - Bu{)}_{2} also known as DIBAL or DIBAL-H, is an exceedingly useful and versatile reducing agent. It is an electrophilic reducing agent, usually employed in selective reductions of esters or nitriles to aldehydes

So, in first step nitrile group will be reduced to aldehyde group.

Consider the following reaction sequence The product ' B ' is

In second step cross aldol condensation reaction will take place which will give mixture of products. Out of which one of the product will be option B.

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