H₂/Lindlar
H₂/Lindlar in organic chemistry: what it does, when to use it and what to watch out for. Covers Reductions, Alkyne reactions.
Overview
H₂/Lindlar is a reagent used in organic chemistry. Below is what it does in each reaction type where it appears.
Reductions
- What it does: Alkyne → cis alkene
- Works on: Alkynes
- Watch out for: Stops at alkene
Alkyne reactions
- What it does: Partial hydrogenation
- Product: cis alkene
- Watch out for: Stops at alkene
Example
2-Butyne reacts to give cis-2-Butene (Lindlar catalyst (Pd/CaCO₃, poisoned)).