مصادر الكيمياء موقع لتعليم الكيمياء بصورة مبسطة
A reaction in which two or more unsaturated compounds form a cyclic adduct or in which a cyclic compound is formed by addition between unsaturated parts of the same molecule. In cycloaddition, there is no net reduction in bond multiplicity. The Diels-Alder reaction is an example. Cycloadditions may be stepwise reactions or may be peri-cyclic reactions.
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