The stereochemistry of the chiral product obtained when 2-butanone reacts with HCN is to be given. Whether the product is optically active or not is to be stated. Concept introduction: A molecule is chiral and optically active if it has a carbon attached to four different groups. When a planar achiral molecule becomes chiral during the course of a reaction, enantiomers will be produced. This is because the reagent can attack the planar compound both from above and below the plane of the molecule. To show: The stereochemistry of the chiral product obtained when 2-butanone reacts with HCN and to state whether the product is optically active or not.

Question

81. a. Propose a mechanism for the following reaction: OH CH2=CHCHC=N b. What is the product of the following reaction? HO H₂O N=CCH2CH2CH OH HO CH3CCH=CH2 H₂O C=N 82. Unlike a phosphonium ylide that reacts with an aldehyde or a ketone to form an alkene a sulfonium ulia

Answer 1

Question

Chapter 19.SE, Problem 74AP

Interpretation Introduction

Interpretation:

The stereochemistry of the chiral product obtained when 2-butanone reacts with HCN is to be given. Whether the product is optically active or not is to be stated.

Concept introduction:

A molecule is chiral and optically active if it has a carbon attached to four different groups. When a planar achiral molecule becomes chiral during the course of a reaction, enantiomers will be produced. This is because the reagent can attack the planar compound both from above and below the plane of the molecule.

To show:

The stereochemistry of the chiral product obtained when 2-butanone reacts with HCN and to state whether the product is optically active or not.

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