Journal ArticleDOI
1,2,4-triazines. III. A convenient synthesis of 1,2,4-triazines and their covalent hydration
William W. Paudler,Teh-Kuei Chen +1 more
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TLDR
In this paper, a general synthesis of 1,2,4-triazines from 3-methylthiotriazines is described, and it has been shown that 1 2,4 triazines undergo covalent hydration across the N4-C5 bond.About:
This article is published in Journal of Heterocyclic Chemistry.The article was published on 1970-08-01. It has received 91 citations till now. The article focuses on the topics: Covalent bond.read more
Citations
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Accurate Vibrational Spectra of Large Molecules by Density Functional Computations beyond the Harmonic Approximation: The Case of Azabenzenes
TL;DR: In this paper, the harmonic and anharmonic frequencies of pyridine, pyridazine, pyrimidine, pyrazine, 1,2,3-triazine and s-tetrazine computed using the B3LYP density functional method and medium size basis sets.
Journal ArticleDOI
Synthesis of the bi-heterocyclic parent ring system 1,2,4-triazolo[4,3-b][1,2,4,5]tetrazine and some 3,6-disubstituted derivatives
TL;DR: In this paper, the parent ring system of 3-5-dimethylpyrazol-1-yl)-6-hydrazino-1,2,4,5-tetrazine with one carbon cyclizing reagents was synthesized.
Journal ArticleDOI
Partial molar volumes of molecules of arbitrary shape and the effect of hydrogen bonding with water
TL;DR: In this paper, the authors present a critical review of approaches for the description of partial molar volumes of aqueous solutions and offer a new procedure for calculation of these volumes which allows one to analyze organic molecules of arbitrary shape.
Journal ArticleDOI
The electronic states of the azines. II. Pyridine, studied by VUV absorption, near-threshold electron energy loss spectroscopy and ab initio multi-reference configuration interaction calculations
Michael H. Palmer,I. C. Walker +1 more
TL;DR: In this article, the results of large-scale ab initio multi-reference multi-root (MRD-CI) calculations on the electronic states of 1,3,5-triazine are related to new VUV absorption and low-energy electron energy-loss (EEL) measurements, leading to detailed spectral assignments.
Journal ArticleDOI
Copper(I)-Promoted Palladium-Catalyzed Cross-Coupling of Unsaturated Tri-n-butylstannane with Heteroaromatic Thioether
TL;DR: Palladium-catalyzed cross-coupling of vinyl- and arylstannanes with pi-electron-deficient heteroaromatics with methylthioether function as an electrophile in the presence of a copper(I) bromide-dimethyl sulfide complex was performed in good yields.
References
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Journal ArticleDOI
Studies in the triazine series including a new synthesis of 1:2:4-triazines
TL;DR: In this paper, the mono-aroylhydrazones of benzil are cyclised by ammonium acetate in hot acetic acid to tri-substituted 1:2:4-triazines.
Journal ArticleDOI
Synthesen mit Formamidrazon Synthese von 1.2.4‐Triazinen
Hans Neunhoeffer,Harald Hennig +1 more
TL;DR: In this article, a 1.2.2-Dioxoverbindungen in Gegenwart von Basen lassen sich 1.4-Triazine synthetisieren.
Journal ArticleDOI
The mass spectra of 1,2,4-triazine and some of its derivatives
TL;DR: The mass spectra of some esters of 1,2,4-triazine-3-carboxylic acid and their fragmentation patterns are analyzed in this article, and the syntheses of the methyl and t-butyl esters are described.
Journal ArticleDOI
Naphthyridine chemistry. VIII. The mass spectra of the 1,X-naphthyridines and some of their methyl derivatives†
TL;DR: The mass spectra of the four parent 1,X-naphthyridines, the 2,3 and 4-monomethyl-1,5-,1,6-. and 1,8- naphthiridincs, seven dimethyl-1.8-nphthyridine, and one trimethyl- 1.8 naphthsyridine are reported in this paper.