Encyclopaedia of Reaction Mechanisms in Organic Chemistry has been designed for post-graduates student of all Indian Universities. This is not only an encyclopaedia, but a reference supplement to the text of organic chemistry meant for university students. This text includes the most recent advances in organic reaction mechanisms, wherever required, mechanisms of organic name reactions have been included. This Encyclopaedia is an invaluable aid to students as well as supplement to their textbooks followed in their classroom teaching. It is hoped that this book will not only meet the requirement of higher level students but will also be useful as a guideline to the teachers in their teaching profession. Contents: Organic Chemistry; Organic Compounds and Polymers; Biochemical; Principles of Organic Nomenclature; Characteristic of Functional Groups; General Principles of Name Construction; IUPAC Nomenclature of Organic Chemistry; Electronic Structure and Atomic Orbital; Organic Structure and Bonding; Ionic and Covalent Bonds; Lewis Structure; Organic Reactions and their Mechanisms; Resonance; Essential Organic Substance.