Classification of Organic Compounds

Acyclic Compounds: Open-chain or aliphatic compounds (e.g., $$\text{CH}_3\text{CH}_2\text{CH}_3$$).

Cyclic Compounds: Ring structures containing at least three atoms.

Homocyclic Compounds: Rings formed entirely by carbon atoms (e.g., Cyclohexane, Benzene).

Heterocyclic Compounds: Rings containing one or more heteroatoms ($$\text{O, N, S}$$) alongside carbon (e.g., Pyridine, Furan, Thiophene).