Chapter 20, Problem 54PP

Interpretation Introduction

Interpretation:

The given starting compounds and selective reagents used to accomplish the target products transformation should be draw and identified.

Concept introduction:

Addition Reaction: It is defined as chemical reaction in which two given molecules combines and forms product. The types of addition reactions are electrophilic addition, nucleophilic addition, free radical additions and cycloadditions. Generally, compounds with carbon-hetero atom bonds favors addition reaction.

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both of the substituents in the reaction) mechanism.

$S_{N}2$Reaction: The $S_{N}2$ reaction is single step process, leaving group leaves the molecule and nucleophiles attack the molecule is single step process which is simultaneous process.

Grignard Reaction: This is a organometallic reaction in different alkyl, aryl-magnesium halides add to a carbonyl group in an aldehyde and ketone. This reaction is an important for the conversion of carbon-carbon single $\left(-C-C-\right)$ bond. Moreover the addition of a reagent to an aster, lactone gives a tertiary alcohol in which will alkyl groups are the same and the addition of a Grignard reagent to a nitrile produces an unsymmetrical ketone.

Synthesis of Acid chloride: The different acid chlorides (like ${\text{SOCl}}_{\text{2}}{\text{, POCl}}_{\text{2}}{\text{ and PCl}}_{\text{5}}$ etc.,) react with carboxylic acids (or) alcohols under could conditions to produce acetyl chloride.

Hydrolysis Reaction: This type of reaction involving the braking of a carbon-carbon triple, double bonds in a molecules using water.