Pericyclic Reactions

Definition and types of reactions classified as pericyclic actions - (a) Cycloaddition and cycloconversion (b) Electrocyclic ring closing and ring opening (c) Sigmatropic rearrangements (d) Cheletropic reactions (e) Group transfers, Stereochemistry of pericyclic reactions and theory of molecular orbital symmetry. Application of theory of M.O. Symmetry by the method of correlation diagram by both thermal and photochemical paths. Stereochemistry of Pericyclic reactions-thermal and photochemical by "Method of Transition state atomaticity". Basic principles of perturbation molecular orbital (PMO) theory, significance of Frontier Molecular orbitals, Stereochemistry of pericyclic reactions by the "Frontier molecular orbital (FMO) method".