Synthesis, absolute configuration and conformation of optically active 1,2-homoheptafulvaleneElectronic supplementary information (ESI) available: 600 MHz 1H NMR spectrum of 1,2-homoheptafulvalene (1); UV–visible and CD spectra of 4. See http://www.rsc.org/suppdata/ob/b2/b210949m/
An optically active 1,2-homoheptafulvalene was successfully synthesized and subjected to spectroscopic investigation. The cycloaddition of the optically active hydrocarbon with tetracyanoethylene (TCNE) and 4-phenyl-1,2,4-triazoline-3,5-dione(PTAD) gave a [4 + 2] cycloadduct and a mixture of [8 + 2] cycloadducts, respectively, which are both optically active.