SEARCH Articles Figures Tables 1,2,4,5-Tetrazine Diels-Alder reactions 1,2,4,5-Tetrazine reactions 1,2,4,5-Tetrazines, inverse electron Alkene Inversion Alkenes Diels Alder reaction Demand electronics Demanding reaction Diels alkenes Diels-Alder reaction demand Diels-Alder reaction, inverse demand Electron alkene Electron-demand Electronic demand Inverse electron demand Inverse electronic demand Diels-Alder Inverse electronic demand Diels-Alder reaction Tetrazines Tetrazines, Diels-Alder Tetrazines, Diels-Alder reactions