Synthesis of functionalized triphenylenes by selective ether cleavage with B-Bromocatecholborane

Restricted Access.This paper presents an efficient synthetic procedure forthe preparation of mono-, di- and trifunctionalized triphenylene derivatives starting from the readily available hexakis(pentyloxy) triphenylene by selective ether cleavages with B-bromocatecholborane (2-bromo-1,3,2-benzodioxaboroles). Functionalized triphenylene derivatives are the precursor molecules for the preparation of processible triphenylene discotic dimers, oligomers, polymers and networks