Effenberger, FranzNagel, KlausAgster, Wolfgang2009-10-262016-03-312009-10-262016-03-311971318085305http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-41925http://elib.uni-stuttgart.de/handle/11682/1238http://dx.doi.org/10.18419/opus-1221The most important methods for preparation of biphenyls are the Ullmann and Gomberg reactions, which involve radical or organometallic intermediates; furthermore, biaryls are formed by benzidine rearrangement and oxidative dimerization, as well as in the course of reactions involving aryne intermediates.eninfo:eu-repo/semantics/openAccessBiphenylderivate , Substitutionsreaktion540article2014-09-26