4496-29-1Relevant academic research and scientific papers
Synthesis of 2-aryl-1-hydroxy-1H-naphtho[2,3-d]imidazole-4,9-diones by reaction of 2-benzylamino-1,4-naphthoquinones with nitric acid
Gornostaev,Vigant,Kargina,Kuznetsova,Khalyavina, Yu. G.,Lavrikova
, p. 1354 - 1357 (2013)
2-Aryl-1-hydroxy-1H-naphtho[2,3-d]imidazole-4,9-diones were synthesized by treatment of 2-benzylamino-1,4-naphthoquinones with a mixture of nitric and sulfuric acids in acetic acid.
Micelles catalyzed one pot regio- and chemoselective synthesis of benzo[a]phenazines and naphtho[2,3-d]imidazoles 'in H2O'
Tandon, Vishnu K.,Verma, Manoj K.,Maurya, Hardesh K.,Kumar, Sandeep
, p. 6331 - 6334 (2014/12/10)
An efficient, novel, and concise one pot regio- and chemoselective synthesis of benzo[a]phenazines (4) and naphtho[2,3-d]imidazoles (8) has been accomplished in excellent yields by nucleophilic substitution reaction of 2,3-dichloro-1,4-naphthoquinone (1) with o-phenylenediamine (2) and benzamidines (7) respectively 'in H2O' using base and micelles (SDS) as catalyst. Analog reaction of 2,3-dichloro-1,4-naphthoquinone (1) with 2-aminobenzenethiol (9) under identical conditions led to formation of a mixture of benzo[b]phenothiazine (10), benzo[a]phenothiazine (11), and benzo[a]-1,4-benzothiazino-3,2-phenothiazine (12) in 17%, 23%, and 57% yields, respectively.
Tuning of the H-bonding ability of imidazole N-H towards the colorimetric sensing of fluoride and cyanide ions as their sodium salts in water
Manivannan, Ramalingam,Satheshkumar, Angupillai,Elango, Kuppanagounder P.
supporting information, p. 3152 - 3160 (2013/10/01)
Imidazole functionalized receptors, 2-R-1H-naphtho[2,3-d]imidazole-4,9- dione (2a-h), containing naphthoquinone as a chromogenic signalling unit have been synthesized from the reaction of 2,3-diaminonaphthoquinone and different aldehydes. These receptors
Facile synthesis of new imidazoles from direct reaction of 2,3-diamino-1,4-naphthoquinone with aldehydes
Aly, Ashraf A.,Hassan, Alaa A.,Brown, Alan B.,El-Shaieb, Kamal M.,Bedair, Tarek M. I.
experimental part, p. 787 - 791 (2011/09/16)
Figure represented. New imidazoles were easily prepared from 2,3-diamino-1,4-naphthoquinone and stoichiometric quantities of the appropriate aldehydes in dimethyl sulfoxide as a solvent. The reaction proceeded for few hours. The procedure can be generaliz
Use of tricyclic derivatives of 1,4-dihydro-1,4-dioxo-1H-naphthalene, novel compounds obtained and their application in theraphy
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, (2008/06/13)
The invention concerns the therapeutic use of tricyclic salts and their pharmaceutically acceptable salts having the general formula: in which: A is either a sulfur atom, an oxygen atom, or an R3N radical where R3is a hydrogen atom,
Synthesis of 1,4-Diazepines
Krieg, Benno,Urban, Ralf
, p. 799 - 802 (2007/10/02)
2,3-Diamino-1,4-naphthoquinone (1) reacts with variously substituted derivatives of diethyl malonate (2,5, and 7) to yield the imidazole derivative 8, a tetraethyl tetracarboxylate of type 6, or substituted diaminonaphthoquinones 3.These react further in
