Reaction name - Dehydro Diels-Alder reaction (DDA) Extension of - Diels-Alder reaction Most recent review - Chem. Rev. 2008, 108, 20512063 DOI
Main characteristics - in a DDA reaction one or more double bonds in a regular Diels-Alder are replaced by an alkyne. The primary cyclic reaction product contains an allene group. To reduce steric strain the cyclic allene will engage in secondary reactions, for instance secondary DA reactions or retro-DA reactions or those forming an arene compound. Depending on the nature of the reactants (alkene, alkyne, enynediyne) 4 reaction types are identified. Reaction is thermal or photochemical and can be catalyzed by zerovalent palladium.