A specific spiro compound consists of a three-membered ring and a six-membered ring sharing exactly one carbon atom. What is its accepted IUPAC base name?

Question

Prashant Kotian · Accepted Answer

Correct answer: B. A three-membered ring has 2 carbons excluding the spiro carbon. A six-membered ring has 5 carbons excluding the spiro carbon. For spiro compounds, numbers are written in increasing order. Total carbons = . Thus, it is Spiro[2.5]octane.

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