Course Objectives:
This course will enable the students to
1. make the students understand the core concepts of organic chemistry i.e. resonance, hyperconjugation, inductive effect etc. and their qualitative and quantitative treatment.
2. provide an in-depth knowledge about alkanes, cycloalkanes, alkenes & alkynes and their reactivity.
Course Outcomes (COs):
Course |
Learning outcomes (at course level) |
Learning and teaching strategies |
Assessment Strategies |
|
Paper Code |
Paper Title |
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CHY-112 |
Mechanistic aspects of Hydrocarbons |
The students will be able to –
CO7: identify different electronic effects and differentiate their role and impacts in a particular situation. CO8: describe the structure, stability and reactivity and mechanistic ability of various hydrocarbons CO9: learn and identify many organic reaction mechanisms including free radical substitution, electrophilic and nucleophilic addition. CO10: predict the products of different hydrocarbons with different reagents
|
Traditional chalk & board method with interactive lectures
Group discussions
Question preparation
Subjective type
Long answer
Short answer
Objective type
Multiple choice questions
One answer/two answer type questions
Assertion and reasoning |
The oral and written examination s (Scheduled and surprise tests)
Problem solving exercises
Assignments
Quiz
Semester End Examination |
Mechanistic classification: Ionic, radical and pericyclic; heterolytic bond cleavage and heterogenic bond formation, homolytic bond cleavage and homogenic bond formation; representation of mechanistic steps using arrow formalism. Reactive intermediates: generation and stability (brief idea) ofcarbocations- Classical and nonclassical, carbanions, free radicals, carbenes, nitrenes.
Hybridization of carbon, cis-trans isomerism, IUPAC nomenclature, general methods of preparation, physical properties. Structure and bonding in alkenes, methods of synthesis and chemical reactions, Mechanism of E1, E2, E1cB reactions(a brief idea). Saytzeff and Hoffmann eliminations. Electrophilic additions and their mechanisms (Markownikoff/Anti Markownikoff addition), mechanism of oxymercuration-demercuration, hydroboration-oxidation, ozonolysis, reduction (catalytic and chemical), syn and anti hydroxylation (oxidation). Addition of singlet and triplet carbenes, Regioselectivity.
Structure and stability of conjugative and cumulative dienes, resonance and molecular orbital structure of allene and 1,3-butadiene; methods of preparation, addition of hydrogen halides to conjugated dienes – 1,4 v/s 1,2 addition (formation, structure and stability of allylic carbocation and free radicals).An elementary concept of orbital symmetry & it’s application to Diels-Alder reaction. Allylic and benzylic bromination.
Nomenclature, Formation and reactions of alkynes,structure & stability, acidity, electrophilic and nucleophilic additions. Hydration to form carbonyl compounds, alkylation of terminal alkynes, reduction of alkynes –catalytic hydrogenation, dissolving metal reduction.