Synthesis of 3-alkyl- and 3-aryl-2-aza-anthraquinones
作者:Bart Kesteleyn、Tuyen Nguyen Van、Norbert De Kimpe
DOI:10.1016/s0040-4020(98)01220-4
日期:1999.2
Reaction of 2-acylated 3-phenoxymethyl-1,4-naphthoquinones with aqueous ammonium hydroxide, provides a facile entry to 3-alkyl- and 3-aryl-benz[g]isoquinoline-5,10-diones.
Silver-Catalyzed Direct Thiolation of Quinones by Activation of Aryl Disulfides to Synthesize Quinonyl Aryl Thioethers
作者:Cheng Zhang、Jesse McClure、C. James Chou
DOI:10.1021/acs.joc.5b00247
日期:2015.5.15
A silver-catalyzed coupling reaction of quinones with aryl disulfides for the synthesis of quinonyl aryl thio ethers is described. In the presence of AgOAc (0.2 equiv)/dppp (0.24 equiv) as the catalyst, (NH4)(2)S2O8 (3.0 equiv) as the oxidant, and Bu4NBF4 (1.0 equiv) as the additive, the reaction is simple, provides high yield (up to 88% yield), and possesses a broad substrate scope. The reaction is believed to proceed via direct activation of disulfides evidenced by observation of a metathesis reaction between two different disulfides placed together under the reaction conditions and C-13 NMR spectroscopy analysis.
Jacobsen,N.; Torrsell,K., Justus Liebigs Annalen der Chemie, 1972, vol. 763, p. 135 - 147
作者:Jacobsen,N.、Torrsell,K.
DOI:——
日期:——
Aldersley, Michael F.; Chishti, Shuhid H.; Dean, Francis M., Journal of the Chemical Society. Perkin transactions I, 1990, # 8, p. 2163 - 2174
作者:Aldersley, Michael F.、Chishti, Shuhid H.、Dean, Francis M.、Douglas, Mark E.、Ennis, David S.