pyrone
any heterocyclic compound having a six-membered, unsaturated ring with one oxygen heteroatom and a carbonyl group attached in 2 or 4 position
en-US/ˈpaɪɹoʊn/
any heterocyclic compound having a six-membered, unsaturated ring with one oxygen heteroatom and a carbonyl group attached in 2 or 4 position