moomz
/vs·chemistry·en

🍓Ester vs Ether💤

Esters and ethers both contain an oxygen atom bonded to carbon, but the surrounding structure makes them behave very differently.

Run a moomz poll: who wins for you?
moomz.com — 10s, anonymous, free
🍓Ester
  • Functional group RCOOR'
  • Has a carbonyl C=O next to an oxygen
  • Often has sweet, fruity smells
  • Formed from acid plus alcohol
  • Examples: ethyl acetate, fats, fragrances
💤Ether
  • Functional group R-O-R'
  • Just an oxygen bridging two carbons
  • Relatively unreactive and stable
  • Often used as solvents
  • Examples: diethyl ether, anisole

Verdict

Esters carry a carbonyl beside the oxygen and smell fruity; ethers are a plain oxygen bridge and act as inert solvents. The carbonyl is the deciding feature.

Frequently asked

How do I tell an ester from an ether?+

An ester has a carbonyl C=O next to its oxygen; an ether has no carbonyl at all.

Why do esters smell fruity?+

Many volatile esters have pleasant fruity aromas and are used in flavorings and perfumes.

Why are ethers good solvents?+

Ethers are fairly unreactive and dissolve many organic compounds without interfering.

Also in

More in chemistry

Run a moomz poll: who wins for you?