ABSTRACT
The microwave (MW) technique become an important tool in organophosphorus chemistry. On the one hand, otherwise reluctant reactions, such as the Diels–Alder cycloadditions, inverse Wittig-type reactions, esterification of P-acids, alcoholysis of P-esters, may be promoted on the effect of MW, while on the other hand, catalysts may be omitted, or catalyst systems may be simplified on MW irradiation. This later group includes the Kabachnik–Fields and the Pudovik reactions, deoxygenation, as well as the Hirao- and the Arbuzov reactions.