Vsecko jsou to bicyklopentany:
1) 1,3-Diethynylbicyclo[1.1.1]pentane, a Useful Molecular Building Block; Kaleta, Jiri et al: European Journal of Organic Chemistry, 2012(25), 4783-4796
2) A triangular macrocycle altering planar and bulky sections in its molecular backbone; Kaleta, Jiri and Mazal, Ctibor: Organic Letters, 13(6), 1326-1329; 2011
3) Synthesis and Structure of Trigonal and Tetragonal Connectors for a "Tinkertoy" Construction Set; Schwab, Peter F. H. et al: Journal of Organic Chemistry, 67(16), 5476-5485; 2002
4)The bicyclo[1.1.1]pentane framework, an excellent relay for π/σ-conjugation; Gleiter, Rolf et al: Angewandte Chemie, 102(4), 418-20; 1990
5) Reduction of [1.1.1]propellane with lithium 4,4'-di-tert-butylbiphenyl: bicyclo[1.1.1]pent-1,3-diyldilithium; Bunz, Uwe and Szeimies, Guenter: Tetrahedron Letters, 31(5), 651-2; 1990
6) T-Shaped Molecular Building Blocks by Combined Bridgehead and Bridge Substitution on Bicyclo[1.1.1]pentanes; Kaleta, Jiri et al: Journal of Organic Chemistry, 75(7), 2350-2356; 2010
Neznate nejakeho pana Kaletu??