Guides
Organic chemistry guides
Ten worked tutorials on the parts of org chem that decide exam marks — mechanisms, selectivity, stereochemistry and synthesis planning. Free to read, no app required.
SN1 vs SN2 vs E1 vs E2
A decision procedure that works under exam pressure: substrate first, then nucleophile or base, then solvent and heat.
Read the guide →How to predict the major product
The five-question routine that turns any reagent-plus-substrate prompt into a defensible product.
Read the guide →How to push arrows correctly
Arrows start at electrons and end at nuclei. The rules, the four moves, and the mistakes graders punish.
Read the guide →Scanning org-chem homework
How to photograph a structure or scheme so it is actually readable, and what to do when handwriting fails.
Read the guide →Electrophilic aromatic substitution
Nitration, halogenation, sulfonation, Friedel–Crafts — and how to call ortho/para versus meta every time.
Read the guide →Carbonyl, aldol and Grignard mechanisms
One electrophilic carbon explains most of Orgo 2. Addition, aldol, and nucleophilic acyl substitution in one place.
Read the guide →Markovnikov and alkene additions
Why the proton goes where it goes, when the rule flips, and which reagents skip the carbocation entirely.
Read the guide →Assigning R and S (and E/Z)
Cahn–Ingold–Prelog priorities without the hand-waving, including what to do when the lowest priority points at you.
Read the guide →Retrosynthesis from scratch
Disconnections, synthons and reagent equivalents — how to plan a multi-step synthesis backwards.
Read the guide →Choosing an org-chem solver
Solution manuals, tutors, general chatbots and dedicated apps — what each is actually good at.
Read the guide →
Stuck on a problem right now?
Photograph it or type it, and read the mechanism one step at a time.
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