Title: Organic Chemistry III
Author: Dr. Bishwajit Saikia
Course: 3rd Semester – Major & Minor (Dibrugarh University)

Suggested for: Undergraduate Chemistry Students (FYUGP)
Publisher: Mahaveer Publications

Content Overview:

Chapter 1: Cycloalkanes and Conformational Analysis

• Introduction to cycloalkanes

• Baeyer strain theory

• Stability of cycloalkanes (angle strain, torsional strain, steric strain)

• Conformations of cyclopentane, cyclohexane (chair, boat, twist forms)

• Energy profiles and relative stabilities

• Axial and equatorial bonds, 1,3-diaxial interactions

Chapter 2: Chemistry of Halogenated Hydrocarbons
(Alkyl and Aryl Halides)

• Classification and nomenclature

• Methods of preparation of alkyl and aryl halides

• Nucleophilic substitution reactions: SN1, SN2, SNi mechanisms

• Factors influencing substitution reactions

• Elimination reactions (E1, E2)

• Reactivity of aryl halides, Benzyne mechanism

Chapter 3: Aromatic Hydrocarbons

• Definition and examples

• Structure of benzene: Kekulé and resonance model

• Criteria of aromaticity (Hückel’s rule)

• Aromatic, antiaromatic and non-aromatic compounds

• Electrophilic substitution reactions: mechanism and orientation effects

• Activating and deactivating groups

Chapter 4: Chemistry of C–O Bond (Alcohols)

• Classification and structure of alcohols

• Preparation of primary, secondary, tertiary alcohols

• Physical properties and hydrogen bonding

• Chemical reactions: oxidation, dehydration, esterification

• Distinction between primary, secondary, tertiary alcohols

 Practical Organic Chemistry

• Laboratory safety and handling of chemicals

• Purification techniques: crystallization, distillation

• Preparation of organic compounds (e.g., bromoalkanes, nitro compounds)

• Identification of functional groups

• Simple synthesis and derivative formation