KROHN, KARSTEN;RIEGER, HAGEN;BRUGGMANN, KAI, SYNTHESIS,(1990) N2, C. 1141-1143
作者:KROHN, KARSTEN、RIEGER, HAGEN、BRUGGMANN, KAI
DOI:——
日期:——
Transition Metal Catalyzed Oxidations; 4.<sup>1</sup>Improved Method for the Oxidation of 1- and 2-Naphthols to 1,2-Napthoquinones
作者:Karsten Krohn、Hagen Rieger、Kai Brüggmann
DOI:10.1055/s-1990-27116
日期:——
A specific oxidation of 1- and 2-naphthols to the corresponding 1,2-naphthoquinones can be achieved by slow addition of the preformed complex of the naphthols with titanium tetraisopropylate with a syringe pump to excess tert-butyl hydroperoxide (TBHP). A previously described method gave mainly coupling products from the Michael reaction.