Named Reactions in Organic Chemistry — Mnemonic
Target: mnemonic for organic chemistry named reactions NEET JEE
Why is this hard to memorize?
Named reactions are the shortcuts of organic chemistry — each one encapsulates a specific transformation that you must recall by name in NEET and JEE. The most important ones include Wurtz reaction, Kolbe's reaction, Reimer-Tiemann reaction, Cannizzaro reaction, Aldol condensation, Sandmeyer reaction, Gattermann reaction, Friedel-Crafts, and Hofmann bromamide degradation. The challenge is not understanding them (most are straightforward once explained) but recalling which name goes with which transformation under exam pressure. A mnemonic that links each name to its key feature makes recall instant.
Classic mnemonics you should know
"Worms Kolbe on Reimer Cannon — Aldol Sand Gates Fryed Hoff"
Wurtz(Worms), Kolbe(Kolbe), Reimer-Tiemann(Reimer), Cannizzaro(Cannon), Aldol(Aldol), Sandmeyer(Sand), Gattermann(Gates), Friedel-Crafts(Fryed), Hofmann(Hoff). Each nickname triggers the full reaction.
"W=alkyl+Na, K=phenol+CO₂, R-T=phenol+CHCl₃, C=no α-H aldehyde+NaOH"
Link each named reaction to its substrate: Wurtz uses alkyl halide + Na, Kolbe uses phenol + CO₂, Reimer-Tiemann uses phenol + CHCl₃, Cannizzaro uses aldehyde without α-H + conc. NaOH.
"Wurtz Welds alkanes, Kolbe Carboxylates phenol, Reimer Reforms to salicylaldehyde, Cannizzaro Compromises (disproportionates)"
Each scientist "does" something that sounds like their name or starts with same letter. Wurtz welds two R groups, Kolbe puts COOH on phenol ring, etc.
The complete list
- Wurtz reaction
- Kolbe reaction
- Reimer-Tiemann reaction
- Cannizzaro reaction
- Aldol condensation
- Crossed Aldol
- Sandmeyer reaction
- Gattermann reaction
- Friedel-Crafts alkylation
- Friedel-Crafts acylation
- Hofmann bromamide degradation
- Hell-Volhard-Zelinsky reaction
- Clemmensen reduction
- Wolff-Kishner reduction
Frequently asked questions
Which named reactions are most important for NEET?
Top NEET named reactions: Wurtz, Kolbe, Reimer-Tiemann, Cannizzaro, Aldol condensation, Sandmeyer, Friedel-Crafts, Hofmann bromamide, Clemmensen reduction, and Wolff-Kishner reduction. These appear almost every year.
How do I remember the difference between Sandmeyer and Gattermann reactions?
Both convert diazonium salt to aryl halide. Sandmeyer uses Cu₂X₂/CuX catalyst (S for Salt catalyst). Gattermann uses Cu powder (G for Ground copper). Product is the same — the catalyst differs.
What is the difference between Clemmensen and Wolff-Kishner reductions?
Both reduce C=O to CH₂. Clemmensen uses Zn-Hg/HCl (acidic conditions — "C" for "Concentrated acid"). Wolff-Kishner uses NH₂NH₂/KOH (basic conditions — "W-K" for "With KOH"). Use Clemmensen for acid-stable compounds and Wolff-Kishner for base-stable ones.
Explore more Chemistry mnemonics
We have 100+ memory tricks for Chemistry — periodic table groups, reactions, exceptions, and more.
Browse all Chemistry mnemonics