Back Radikálová adice Czech واکنش افزایشی رادیکال آزاد Persian Addition radicalaire French Gyökös addíció Hungarian Addizione radicalica Italian Radicalaire additie Dutch Addycja rodnikowa Polish Adiție radicalică Romanian Реакции радикального присоединения Russian Radikálová adícia Slovak
In organic chemistry, free-radical addition is an addition reaction which involves free radicals. Radical additions are known for a variety of unsaturated substrates, both olefinic or aromatic and with or without heteroatoms.
Free-radical reactions depend on one or more relatively weak bonds in a reagent. Under reaction conditions (typically heat or light), some weak bonds homolyse into radicals, which then induce further decomposition in their compatriots before recombination. Different mechanisms typically apply to reagents without such a weak bond.