The synthesis of several symmetrical polyaromatic compounds with pyridine or diazine units has been achieved by homocoupling of aryl halides with Pd(OAc)2 as catalyst. Cross‐coupling reactions of aryl Grignard reagents with Fe(acac)3 as catalyst allowed the synthesis of various unsymmetrical polyaryl‐ or polyheteroaryl compounds with TTπ‐deficient rings.
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