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What is the enthalpy of formation of pyrazine-2-carboxylic acid?
(Elsevier, 2016)
There are two contemporary conflicting, indeed, incompatible determinations of measurements of the
enthalpies of combustion and of formation of pyrazine-2-carboxylic acid in the literature,
( 2268.0 ± 0.9 and 271.2 ± ...
Synthesis, antileishmanial activity and cytotoxicity of 2,3-diaryl- and 2,3,8-trisubstituted imidazo[1,2-a]pyrazines
(Elsevier, 2015)
A series of original 2-phenyl-3-(pyridin-4-yl)imidazo[1,2-a]pyrazines and the 3-iodo precursors, bearing a polar moiety at the C-8 position, was synthesized and evaluated for their antileishmanial activities. Two derivatives ...
Theoretical study of thieno[3,4-b]pyrazine derivatives with enhanced NLO response
(2021-10-16)
The study of new organic chromophores with improved NLO response aiming at a wide range of feasible applications has become a relevant and promising study area. In this context, a theoretical investigation of the NLO ...
Hydrogen peroxide oxidation of alkanes catalyzed by the vanadate ion-pyrazine-2-carboxylic acid system
(InterperiodicaBirminghamEUA, 2005)
Reactions of 1,2.,5-thiadiazole 1,1-dioxide derivatives with nitrogen nucleophiles. Part IV. Addition of alpha-diamines
(JOHN WILEY & SONS LTD, 2009)
alpha-diamines, such as ethylendiamine and o-phenylendiamine, add to 3,4-aryl-disubstituted 1,2,5-thiadiazole 1,1-dioxides to give dihydropyrazines or quinoxalines, respectively and sulfamide. The new compound acenaphtho ...
Few substitutions affect the bioluminescence spectra of Phrixotrix (Coleoptera: Phengodidae) luciferases: a site-directed mutagenesis survey
(2007-07-01)
Phrixotrix (railroad worm) luciferases produce bioluminescence in the green and red regions of the spectrum, depending on the location of the lanterns, and are the only luciferases naturally producing red bioluminescence. ...
Few substitutions affect the bioluminescence spectra of Phrixotrix (Coleoptera: Phengodidae) luciferases: a site-directed mutagenesis survey
(2007-07-01)
Phrixotrix (railroad worm) luciferases produce bioluminescence in the green and red regions of the spectrum, depending on the location of the lanterns, and are the only luciferases naturally producing red bioluminescence. ...