Pyrans
Pyrans are six membered oxygen heterocycles possessing one oxygen atom. Isomers of pyran include 2H and 4H versions, while complex heterocycles such as pyranoflavonoids have biological activities and are found in nature.
Pyrans are six membered oxygen heterocycles possessing one oxygen atom. Isomers of pyran include 2H and 4H versions, while complex heterocycles such as pyranoflavonoids have biological activities and are found in nature.