Ozonolysis

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Ozonolysis is a type of cycloaddition which destroys bonds. It starts with a 1,3-dipolar cycloaddition but eventually becomes a method of cleaving π bonds in an oxidative fashion, so that they end up as two carbonyl groups. The reagent for this reaction is ozone, O₃.

T. J. Fisher and P. H. Dussault, Tetrahedron, 2017, 73, 4233–4258.