113016-83-4Relevant articles and documents
15N 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-ANTHRAQUINONES
Lycka, Antonin,Havlickova, Libuse,Kolonicny, Alois,Jirman, Josef
, p. 736 - 741 (2007/10/02)
The 15N chemical shifts and 1J(15N,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.