The synthesis of a novel class of hexa-arm molecules with C3d symmetry via a simultaneous six-fold nucleophilic substitution reaction from 1,4,5,8,9,12-hexabromododecahydrotriphenylene has been described.
A new route for constructing PAHs from cyclohexanone by trimerization, bromination, trisannulation and aromatization, and the synthesis of a novel sulfur-containing polycyclic heteroaromatic have been described.