EFFECT OF SUBSTITUENTS ON THE TAUTOMERIC EQUILIBRIUM OF 5-HYDROXY-1,4-NAPHTHOQUINON-4-IMINES

Authors
EKTOVA LV BUKHTOYAROVA AD PETRENKO OP
Citation
Lv. Ektova et al., EFFECT OF SUBSTITUENTS ON THE TAUTOMERIC EQUILIBRIUM OF 5-HYDROXY-1,4-NAPHTHOQUINON-4-IMINES, Russian chemical bulletin, 46(2), 1997, pp. 344-349
Citations number
16
Categorie Soggetti
Chemistry
Journal title
Russian chemical bulletin → ACNP
ISSN journal
10665285
Volume
46
Issue
2
Year of publication
1997
Pages
344 - 349
Database
ISI
SICI code
1066-5285(1997)46:2<344:EOSOTT>2.0.ZU;2-2
Abstract
Tautomeric equilibria of para- and ana-quinoid forms of 5-hydroxy-1,4- naphthoquinone-4-imines in solutions were studied by UV and H-1 NMR sp ectroscopy. The one-form is stabilized by electron-donating substituen ts at positions 2 and 8 and at nitrogen atom and by electron-withdrawi ng, substituents at position 6.