Question

The IUPAC name of is

• A. Spiro[2∙2]pentane
• B. Bicyclo [2∙2∙0]pentane
• C. Bis - (1, 1 - Cyclopropane)
• D. None Of These

Answer 1

The correct option is A

Spiro[2∙2]pentane

The given compound has two cycloalkane rings fused at exactly one carbon atom. It is a spiro compound. Excluding the common carbon atom, there

are two bridges each containing two carbon atoms.

The IUPAC name of the given compound is Spiro[2-2]pentane

The bracket contains the number of carbon atoms (except the common carbon atom) in each bridge cited in the increasing order.

Within the bracket, each numeral is separated by a period and not a comma.