A third-generation bicyclopropylidene: Straightforward preparation of 15,15 '-bis-(hexaspiro [2.0.2.0.0.0.2.0.2.0.1.0]penta-decylidene) and a C-2v-symmetric branched [15]triangulane
M. Von Seebach et al., A third-generation bicyclopropylidene: Straightforward preparation of 15,15 '-bis-(hexaspiro [2.0.2.0.0.0.2.0.2.0.1.0]penta-decylidene) and a C-2v-symmetric branched [15]triangulane, ANGEW CHEM, 39(14), 2000, pp. 2495