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JEE Main202229 Jul 2022Morning ShiftChemistryAldehydes and KetonesActual

Consider the following reaction sequence ​​​​​​​ The product ' B ' is

Correct answer

1

Step-by-step solution

Diisobutylaluminium hydride, AlH ( 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. 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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