Stereochemistries
Asymmetric Catalysis — Enantioselective Reactions
Complete guide to asymmetric catalysis: Sharpless, Noyori, Knowles, and chiral transition metals.
Atropisomerism — Stereoisomerism from Restricted Rotation
Complete guide to atropisomerism: biaryl rotation barriers, BINAP, and axial chirality.
Chirality — Handedness in Molecules
Complete guide to chirality: asymmetric carbons, enantiomers, and optical activity.
Conformational Analysis — Rotamers and Energy Diagrams
Complete guide to conformations: Newman projections, chair cyclohexane, and torsional strain.
Cram's Rule and Chelation Control — Stereoselective Addition
Complete guide to Cram's rule, Felkin-Anh model, and chelation-controlled addition to carbonyls.
Diastereomers — Non-Mirror Image Stereoisomers
Complete guide to diastereomers: meso compounds, multiple stereocenters, and physical properties.
E/Z Isomerism — Geometric Isomerism in Alkenes
Complete guide to E/Z notation: cis/trans, CIP priorities, and stereoselective synthesis.
Meso Compounds — Achiral Members of Chiral Sets
Complete guide to meso compounds: internal mirror planes, optical inactivity, and identification.
Optical Activity — Polarimetry and Enantiomeric Excess
Complete guide to optical activity: specific rotation, enantiomeric excess, and polarimetry.
R/S Configuration — Cahn-Ingold-Prelog Rules
Complete guide to R/S configuration: priority rules, assigning stereochemistry, and drawing conventions.
Racemic Mixtures — 50:50 Enantiomer Mixtures
Complete guide to racemic mixtures: resolution, optical inactivity, and industrial significance.
Stereochemical Notation — Wedge-Dash, Fischer, Newman
Complete guide to drawing stereochemistry: wedge-dash, Fischer projections, Newman projections, and Haworth.
Stereochemistry in Reactions — Syn, Anti, Retention, Inversion
Complete guide to stereochemical outcomes: SN2 inversion, syn addition, anti addition, and stereospecificity.
Stereoselective Synthesis — Controlling Stereochemistry
Complete guide to stereoselective reactions: asymmetric catalysis, chiral auxiliaries, and enantioselective synthesis.
Topicity — Pro-R/Pro-S and Enantiotopic/Diastereotopic
Complete guide to topicity: prochirality, enantiotopic and diastereotopic groups.