10NT201 PRINCIPLES OF ORGANIC CHEMISTRY Credits: 3:0:0 Course Objectives: • The student will get rudimentary ideas on chemical structure and formula of organic molecules • The student will understand the influence of stereoisomerism and conformation in chemical structure and properties of molecules • The student will be exposed to ideas about natural products, their structure, and function Outcome: The students will get knowledge on the structural basics of organic compounds Unit I Introduction to organic chemistry: Classification of organic compounds – Functional groups – Nomenclature of organic compounds – nomenclature of heterocyclic compounds – fission of bonds – electrophiles and nucleophiles (definition, discussion on the conditions these are formed) – carbocation and carbanion, Free radicals, arynes (structure and reaction only; methods to identify these species are not required) Unit II Electronic effects; types of reactions: Inductive effect and field effect – electron delocalization and resonance, rules of resonance – steric inhibition of resonance and steric enhancement of resonance (with only one example for each) – hyperconjugation – tautomerism. Types of reactions: substitution reactions (types and examples), addition reactions (types and examples), elimination reactions (types and examples), rearrangement reactions (types and examples) – thermodynamic and kinetic requirements of a reaction – kinetic and thermodynamic control – the Hammond postulate Unit III Stereochemistry I: Stereoisomerism – cis-trans isomerism (definition and examples only) – E, Z nomenclature (rules and examples only) – optical isomerism – cause of optical activity – racemization – resolution methods – absolute configuration – R, S nomenclature – Cahn, Ingold, Prelog nomenclature - Atropisomerism (biphenyls only) – Asymmetric synthesis Difference between conformation and configuration – conformation of ethane, substituted ethanes – conformation of cyclohexanes, mono, and di-substituted cyclohexanes – saw-horse, staggered, skew, gauche forms Unit IV Stereochemistry II: Dynamic stereochemistry – Stereo-selectivity and stereo-specificity – CurtinHammett principle – enantioselective, diastereoselective synthesis – enzymatic and kinetic methods – effect of conformation on reactivity in acyclic compounds and cyclohexanes Unit V Natural products: Nomenclature, classifications, general methods of structure determination of alkaloids, terpenoids, steroids, and flavonoids (structure determination of any specific natural product is not required) Text Books: 1. P.S. Kalsi, Stereo Chemistry Conformation and Mechanism, New Age Publishing Ltd., New Delhi, 2002 2. O.D. Tyagi, M. Yadav, A Text Book of Organic Chemistry, Anmol Publishing Ltd., New Delhi, 2002 Reference Books: 1. Jerry March, Advanced Organic Chemistry, Willey, 4th Edition, Newyork, 1992 2. I.L. Finar, Organic Chemistry, Pearson Education Pvt. Ltd., Vol. I & II, 5th Edition, Singapore, 1975 3. R.T. Morrison & R.N. Boyd, Organic Chemistry, 6th Edition, Pearson Education Pvt Ltd., Singapore, 2003 4. Gurdeep and Chatwal, Organic Chemistry of natural products, Vol. I & II, 3rd edition, 2000 5. Nasipuri, stereochemistry of organic compounds, New Age International publishers, 3rd edition, 1999