Advanced Organic Chemistry - Reactions And Mechanism

Discover how chain isomerism creates different carbon skeletons in alkanes, from normal butane to isobutane. Learn how pentane has three structural isomers and how increasing carbon count increases possible isomers.

Explore keto-enol tautomerism as a dynamic equilibrium between keto and enol forms, driven by hydrogen shifts from the alpha carbon to the carbonyl oxygen.

Explore geometrical isomerism in alkenes by examining how restricted rotation around carbon–carbon double bonds produces cis and trans isomers, requiring different substituents on each carbon or cyclic locking.

Learn absolute configuration by applying CIP rules to assign priorities, then determine R or S by clockwise or anticlockwise movement from 1 to 2 to 3, without reference compounds.

Identify aromatic, antiaromatic, and nonaromatic compounds by applying Huckel's rule (4n+2 electrons) to cyclic, planar, fully conjugated systems.

Classifies aromatic compounds into three main categories: benzenoid compounds, non-benzenoid aromatics, and other aromatic systems, highlighting fused benzene rings like naphthalene and azulene within conjugated structures.

Explore electrophilic aromatic substitution mechanisms on benzene, featuring resonance-stabilized intermediates, attachment of an electrophile, and hydrogen loss to restore aromaticity.

Explains halohydrin formation: bromine adds to an alkene in water via a bromonium ion, water attack, deprotonation, yielding anti addition of bromine and hydroxyl.

Explore reductive ozonolysis of alkenes, where ozone cleaves the carbon–carbon double bond to give ozonides that are reduced by dimethyl sulfide or zinc to aldehydes and/or ketones.

Explore how aldehydes oxidize to carboxylic acids easily, while ketones require strong oxidizing agents; learn Tollens' silver mirror test and Fehling's solution to distinguish them.

Learn how to prepare carboxylic acids from primary alcohols and Grignard reagents with carbon dioxide, via oxidation with strong oxidants in alkaline or acidic media, including benzene to benzoic acid.