Pericyclic Reactions and Organic Photochemistry

Week1: General introduction to the course, activation of chemical reactions. thermal and photochemical methods, molecular

orbitals of conjugated polyenes and their symmetry properties, definition and classification of pericyclic reactionsmethods
of analyzing pericyclic reactions.

Week 2: Electrocyclic reactions – introduction, definition and classification, Woodward- Hoffmann rules for electrocyclic reactions,
Stereochemical aspects and modes of electrocyclic reactions, analysis of electrocyclic reactions by various methods,
examples of electrocyclic reactions.

Week 3: Electrocyclic (continued), Cycloaddition reactions, Woodward- Hoffmann rules for cycloaddition reactions, stereochemical
aspects and modes of cycloaddition reactions, analysis of cycloaddition reactions by various methods

Week 4:Examples of thermal and photochemical [2p+2p] cycloaddition reactions Synthesis of cage type compounds using [2p+2p] cycloaddition reactions Diels-Alder reaction and its variants and their syntic utility

Week 5:1,3-Dipolar cycloaddition reactions, higher order cycloaddition reactions, sigmatropic rearrangements, Woodward Hoffmann rules
for sigmatropic rearrangements

Week 6: Sigmatropic rearrangements – examples, Claisen and Cope rearrangements [2,3]-sigmatropic rearrangements and higher order rearrangements Chelotropic reactions - introduction, definition and classification, Ene reaction.

Week 7: Organic photochemistry – introduction, definitions, importance
Electronic excitation and spin configurations – Jabolanski diagram Energy transfer and electron transfer processes – quenching of excited states Photochemistry of carbonyl compounds

Week 8: Photochemistry of olefins, enones and dienones, photochemistry of aromatic molecules, molecular oxygen and organic photochemistry, supramolecular organic photochemistry.