80089-97-0Relevant academic research and scientific papers
Synthesis and Electrochemical Study of Benzothiazine and Phenothiazine Derivatives
Sanicanin, Z.,Juric, A.,Tabakovic, I.
, p. 4053 - 4057 (2007/10/02)
A number of benzothiazine and phenothiazine derivatives are prepared by reaction of 2-mercaptoaniline and cyclic β-diketo compounds or by reaction of bidentate nucleophiles on 4-chloro-3-nitrocoumarin by using the HSAB principle.The topological resonance energies per ?-electron (TREPE's) are calculated for nine benzothiazine and phenothiazine derivatives and correlated with the first reversible peak potentials.The analysis of the data shows a good correlation between the TREPE values and the oxidation potentials.The chemical behavior of the electrochemically generated radical cations of the two related heterocyclic systems: 6,12-dihydrobenzopyrranobenzothiazin-6-one (1) and 2,3-dihydro-2,2-dimethylphenothiazin-6(1H)-one (2) are examined by using the electroanalytical techniques and preparative controlled potential electrolysis.HMO calculations are used to predict the most reactive sites toward the nucleophilic attack.
Phenalenones. IV. Heterocycles from 3-Hydroxyphenalenone (I)
Kuroki, Masatane,Terachi, Yasuhito,Tsunashima, Yutaka
, p. 873 - 876 (2007/10/02)
3-Hydroxyphenalenone reacts with o-disubstituted benzenes (substituents: NH2, OH, CH2OH and SH), aliphatic and aromatic aldehydes to give the various heterocyclic compounds which are fused with phenalene ring.These reactions resemble those of 1,3-cyclohexanedienones in many respects.
