α,β-Unsaturated selenoaldehydes and selenoketones the reaction behavior as a heterodiene and/or a dienophile
作者:Guang Ming Li、Masahito Segi、Tadashi Nakajima
DOI:10.1016/s0040-4039(00)92677-7
日期:1992.6
β-Unsaturated selenoaldehydes and selenoketones, generated in situ by selenation of the corresponding carbonyl compounds with bis[dimethylaluminum) selenide, underwent regioselective self-condensation to yield cyclic diselenide derivatives. On the other hand, in the presence of a trapping agent, they underwent intermolecular Diels-Alder cycloadditions in two different modes depending on the trapping agent