A new color of the synthetic chameleon methoxyallene: Synthesis of trifluoromethyl-substituted pyridinol derivatives: An unusual reaction mechanism, a remarkable crystal packing, and first palladium-catalyzed coupling reactions

Article abstract of DOI:10.1002/chem.200400322

Addition of lithiated methoxyallene to pivalonitrile afforded after aqueous workup the expected iminoallene 1 in excellent yield. Treatment of this intermediate with silver nitrate accomplished the desired cyclization to the electron-rich pyrrole derivati