SYNTHESIS OF 2-OXY-3-(PYRIDINIUM-1'-YL)-1,4-NAPHTHOQUINONE DERIVATIVES BY IODINE OR HYDROGEN-PEROXIDE OXIDATION OF 1,4-NAPHTHOQUINONES IN THE PRESENCE OF SUBSTITUTED PYRIDINES

Authors
CITTERIO A FOCHI M MARONATI A SEBASTIANO R MELE A
Citation
A. Citterio et al., SYNTHESIS OF 2-OXY-3-(PYRIDINIUM-1'-YL)-1,4-NAPHTHOQUINONE DERIVATIVES BY IODINE OR HYDROGEN-PEROXIDE OXIDATION OF 1,4-NAPHTHOQUINONES IN THE PRESENCE OF SUBSTITUTED PYRIDINES, Synthesis, (6), 1997, pp. 614
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Synthesis → ACNP
ISSN journal
00397881
Issue
6
Year of publication
1997
Database
ISI
SICI code
0039-7881(1997):6<614:SO2D>2.0.ZU;2-M
Abstract
2-Oxy-3-(pyridinium-1'-yl)-1,4-naphthoquinone betaines are obtained in moderate to good yield by oxidation of 1,4-naphthoquinones with, iodi ne/MnO2 or hydrogen peroxide in the presence of substituted pyridines. Pyridinium-l,4-naphthoquinone iodides and 2,3-epoxy-2,3-dihydronaphth oquinone are suggested intermediates.