A spiro compound consists of a 4-membered ring and a 5-membered ring sharing one carbon. What is its — IUPAC and Nomenclature Chemistry Question
Question
A spiro compound consists of a 4-membered ring and a 5-membered ring sharing one carbon. What is its accepted IUPAC base name?
Answer: A
💡 Solution & Explanation
The small ring has 3 non-spiro carbons. The large ring has 4 non-spiro carbons. For spiro compounds, numbers are arranged in increasing order. Total carbons = 3 + 4 + 1 = 8. Base name: Spiro[3.4]octane.
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