. What is Bicyclic Compunds

Best Answer

Bicyclic compounds are compounds that contain two rings.

i. If the two rings share one carbon, the compound is a spirocyclic compound or simply spiro compound. 

For example:

ii. If the two rings share two adjacent carbons, the compound is a fused bicyclic compound.

iii. If the two rings share more than two carbons, the compound is a bridged bicyclic compound.