3,4-di-tert-butyl-1,2-diisopropyl-1,2,3,4-diazadiboretidine

3,5-di-tert-butyl-3,4-dipropyl-1,3,4,2,5-oxadiazadiborolidine

3,6-di-tert-butyl-1,2,4,5-tetraethyl-1,2,3,6-tetrahydro-1,2,3,6-diazadiborine

3,6-di-tert-butyl-4,5-bis(ethoxycarbonyl)-1,2-diethyl-1,2,4,5,3,6-tetraazadiborinane

3,5-di-tert-butyl-1,2-diisopropyl-4-(neopentylideneamino)-1,2,4,3,5-triazadiborolidine