Gw. Wijsman et al., SYNTHESIS OF THE MONO(DEWAR BENZENE) ISOMER OF [1.1]METACYCLOPHANE, Angewandte Chemie, International Edition in English, 32(5), 1993, pp. 726-728
An unsaturated, highly strained [5]metacyclophane derivative is one de
scription of compound 2. which was obtained by the reaction of the hex
ahalobispropellane precursor 1 (X = Cl) with tBuOK in dimethylsulfoxid
e. Compound 2 was characterized by NMR spectroscopy and high-resolutio
n mass spectrometry. [GRAPHICS]