19059-71-3Relevant academic research and scientific papers
Exploiting tautomerism for switching and signaling
Antonov, Liudmil,Deneva, Vera,Simeonov, Svilen,Kurteva, Vanya,Nedeltcheva, Daniela,Wirz, Jakob
scheme or table, p. 7875 - 7878 (2010/04/06)
Good form: Attaching a flexible piperidine unit to 4-(phenyldiazenyl) naphthalen-1-ol allows construction of a tautomeric switch, where directed shift of the tautomeric equilibrium can be achieved through protonation and deprotonation (see picture). The developed molecular switch shows acceptable complexation with small alkali- and alkaline-earth-metal ions and forms a promising base for further development of effective molecular sensors.
An efficient tandem oxidative-protection reaction of benzylic alcohols to corresponding arylhydrazones and oximes
Badri, Rashid,Shushizadeh, Mohammad Reza
, p. 601 - 605 (2007/10/03)
A mild and efficient one-pot synthesis of hydrazones and oximes from the reaction of the oxidation product of benzyl alcohols and phenols by 3,6-bis(triphenylphosphonium)cyclohexene dichromate with phenylhydrazine, 2,4-dinitrophenylhydrazine, and hydroxylamine is described. Copyright Taylor & Francis Group, LLC.
Reaction between 1,4-naphthoquinone and arylhydrazines. Part 1: Reactions between quinones and hydrazines
Kallmayer,Kruppert
, p. 483 - 485 (2007/10/02)
1,4-Naphthoquinone (3) reacts with arylhydrazines 10 in acetic solution to give 1,4-naphthoquinonearylhydrazones 1. 2-Arylhydrazino-1,4-naphthoquinones 2 are not obtained. On the other hand 3 reacts with the same arylhydrazines 10 in neutral methanolic so
Photooxidation of Arylazo-Naphtholes with Singlet Oxygen
Becker, H. G. O.,Franze, J.
, p. 957 - 964 (2007/10/02)
The reaction of p-substituted 4-arylazo-1-naphtholes 1 and 1-arylazo-2-naphtholes 5 with singlet oxygen (produced by methylene blue-sensitized photolysis) has been studied spectroscopically in methanol as a solvent.The rate constants of dye bleaching are the same, irrespective whether the extinctions of the azo or the hydrazone forms of the tautomeric systems are measured.Both reaction series 1 and 5 afford linear Hammett plots, which is discussed in the light of the azo-hydrazone equilibrium of the dyes and an "ene" mechanism of the reaction with singlet oxygen.It could be shown by short-time spectroscopy that the azo-hydrazone isomerization proceeds much faster than the attack of singlet oxygen on the hydrazone form, which explains all observed facts.
