A metal-catalyzed reaction of α-diazocarbonyl compounds with an acid anhydride is reported. In particular, 1,2-naphthalenediol diacetates were synthesized by the reaction of 1,2-diazonaphthoquinones with acetic anhydride catalyzed by Rh2(OAc)4.
Activated Zeolites and Heteropolyacids: An Efficient Catalysts for the Synthesis of Triacetoxyaromatic Precursors of Hydroxyquinones
作者:Dokari Hadjila、Hammadi Mohamed
DOI:10.14233/ajchem.2013.14276
日期:——
The Thiele-Winter reaction is of interest for synthesis of triacetoxyaromatic precursors of hydroquinones. Liquid acid such as, chlorosulfonic acid and solid acids like heteropolyacids have an efficient catalyst can effectively replace sulfuric acid in acetoxylation reaction of quinones without use of organic solvent at room temperature.