Complete ozonolysis (followed by reductive cleavage) of a perfect, unbranched cis-1,4-polyisoprene chain yields predominantly a specific dicarbonyl compound. How many oxygen atoms are present in a sin

Question

Complete ozonolysis (followed by reductive cleavage) of a perfect, unbranched cis-1,4-polyisoprene chain yields predominantly a specific dicarbonyl compound. How many oxygen atoms are present in a single molecule of this primary product?

Prashant Kotian · Accepted Answer

Correct answer: 2. The repeating unit is . Ozonolysis cleaves the double bond, yielding 4-oxopentanal (levulinaldehyde), which has the structure . This molecule contains 1 ketone oxygen and 1 aldehyde oxygen, totaling 2 oxygen atoms.

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