15 N NMR study of amino-imino tautomerism in derivatives of 1, 4-bis (substituted amino)-9, 10-anthraquinones and 1, 4-bis (substituted amino)-2, 3-dihydro-9, 10- …
…, L Havlíčková, A Koloničný, J Jirman
文献索引：Lycka, Antonin; Havlickova, Libuse; Kolonicny, Alois; Jirman, Josef Collection of Czechoslovak Chemical Communications, 1987 , vol. 52, # 3 p. 736 - 741
Abstract The 15 N chemical shifts and 1 J (15 N, H) coupling constants of 1, 4-bis (substituted amino)-9, 10-anthraquinones and 1, 4-bis (substituted amino)-2, 3-dihydro-9, 10- anthraquinones indicate that these derivatives exist as true aminoderivatives except for 1, 4- bis (phenylamino)-2, 3-dihydro-9, 10-anthraquinone which forms a tautomeric mixture of the amino and imino forms in deuteriochloroform and hexadeuteriodimethyl sulphoxide.
