Reagents used for the conversion of compound 1 to 2 have to be identified. Concept introduction: Hydroboration reaction: The reaction involves addition of B H 3 over alkene which makes B H 2 to bond with less substituted position of carbon-carbon double bonds and H to more substituted position of carbon-carbon double bonds which finally carbon containing B H 2 gets oxidized in order to achieve the product with less substitution. Oxidation: If electrons are moved from a species or oxygen atoms are added to a species or hydrogen atom gets removed from a species during a chemical reaction is known as oxidation. Anti-Markovnikov’s Addition Rule: The unsymmetrical alkene in a chemical compound reacts with hydrogen halide in a way, where halide ions attacks and bond to the less substitution position of carbon-carbon double bond.

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Chapter 20.14, Problem 31ATS

(a)

Interpretation Introduction

Interpretation:

Reagents used for the conversion of compound 1 to 2 have to be identified.

Concept introduction:

Hydroboration reaction: The reaction involves addition of BH3 over alkene which makes BH2 to bond with less substituted position of carbon-carbon double bonds and H to more substituted position of carbon-carbon double bonds which finally carbon containing BH2 gets oxidized in order to achieve the product with less substitution.

Oxidation: If electrons are moved from a species or oxygen atoms are added to a species or hydrogen atom gets removed from a species during a chemical reaction is known as oxidation.

Anti-Markovnikov’s Addition Rule: The unsymmetrical alkene in a chemical compound reacts with hydrogen halide in a way, where halide ions attacks and bond to the less substitution position of carbon-carbon double bond.

(b)

Interpretation Introduction

Interpretation:

Reagents used for the conversion of compound 2 to 3 have to be identified.

Concept introduction:

Oxidation: If electrons are moved from a species or oxygen atoms are added to a species or hydrogen atom gets removed from a species during a chemical reaction is known as oxidation.

Chromic acid: H2CrO4 is a very strong acid that is used to convert primary alcohols and aldehydes to carboxylic acids and secondary alcohols to ketones. It is often made through an in-situ reaction of Na2Cr2O7 and H2SO4.

Thionyl chloride: SOCl2 is used convert to a carboxylic acid to an acid halide. It is also used to form nitrile by dehydrating an amide.

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