Results 151 to 160 of about 35,228 (210)
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2001
[290-38-0] C3H3N3 (MW 81.09) InChI = 1S/C3H3N3/c1-2-5-6-3-4-1/h1-3H InChIKey = FYADHXFMURLYQI-UHFFFAOYSA-N (electron-deficient heteroaromatic azadiene capable of participation in inverse electron demand Diels–Alder reactions with electron-rich dienophiles1) Alternate Names: as-triazine; α-triazine; isotriazine ...
Dale L. Boger, Minsheng Zhang
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[290-38-0] C3H3N3 (MW 81.09) InChI = 1S/C3H3N3/c1-2-5-6-3-4-1/h1-3H InChIKey = FYADHXFMURLYQI-UHFFFAOYSA-N (electron-deficient heteroaromatic azadiene capable of participation in inverse electron demand Diels–Alder reactions with electron-rich dienophiles1) Alternate Names: as-triazine; α-triazine; isotriazine ...
Dale L. Boger, Minsheng Zhang
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Synthesis of 1,2,4-Triazines; XIII. Regioselective Synthesis of Trialkyl-1,2,4-triazines
HETEROCYCLES, 1992Trialkyl-1,2,4-triazines (3) were prepared by heating α-oxoacylhydrazones (4) or N,N-dimethylaminomethylene hydrazones (19) with ammonium acetate at 100°C.
Hans Neunhoeffer, Tadashi Ohsumi
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1,2,4‐triazines. III. A convenient synthesis of 1,2,4‐triazines and their covalent hydration
Journal of Heterocyclic Chemistry, 1970AbstractA general synthesis of 1,2,4‐triazines, from 3‐methylthiotriazines is described. It has been shown that 1,2,4‐triazines undergo covalent hydration across the N4‐C5 bond.
William W. Paudler, Teh‐Kuei Chen
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ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
J. K. LEE, H. C. KWON, H. G. KIM
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
J. K. LEE, H. C. KWON, H. G. KIM
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1,2,4-Triazines Are Versatile Bioorthogonal Reagents
Journal of the American Chemical Society, 2015A new class of bioorthogonal reagents, 1,2,4-triazines, is described. These scaffolds are stable in biological media and capable of robust reactivity with trans-cyclooctene (TCO). The enhanced stability of the triazine scaffold enabled its direct use in recombinant protein production.
David N, Kamber +6 more
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1,2,4-triazines and condensed derivatives—XIV
Tetrahedron, 1974Abstract 3 - Alkylthio - 6,7 - dihydro - [1.2.4]triazino - [1.6-c]quinazolin - 5 - ium - 1 - olates (3), prepared by condensation of 3 - alkylthio -6-(2- aminophenyl) - 1,2,4 - triazin - 5(2H) - ones (1) with aldehydes, ketones or their equivalents are transformed by thermolysis and/or acid treatment into 3 - alkylthio - [1.2.4]triazino[5.6-b]indoles
G. Doleschall, K. Lempert
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Reaction of 1,2,4-triazines with nitronate anions, direct nucleophilic acylation of 1,2,4-triazines.
Tetrahedron Letters, 1984Abstract Nitronate anions replace 5-hydrogen atom in a variety of 3-substituted 1,2,4-triazine derivatives giving oximes of 5-formyl and 5-acyl 1,2,4-triazines.
A. Rykowski, M. Mąkosza
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From 3-chloromethyl-1,2,4-triazine 4-oxides to various substituted pyridines and 1,2,4-triazines
Russian Chemical Bulletin, 2005AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
V. N. Kozhevnikov +6 more
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ChemInform Abstract: SYNTHESIS OF 1,2,4‐TRIAZINES. IX. SYNTHESIS OF CYCLOPENTA(E)‐1,2,4‐TRIAZINES
Chemischer Informationsdienst, 1982AbstractDie Vertreter (IV), (XI), (XII) und (XIII) des bisher unbekannten Titel‐Systems werden durch Kondensation der entsprechenden Diole (I) mit den Amidrazonen (II), (VI) [oder (VII)], (VII) bzw. (IX) dargestellt, wobei die Richtung der Reaktion von (V) lösungsmittelabhängig ist [eine Umlagerung von (VII) in (VI) erfolgt in ammoniakalischem Methanol]
H.‐J. METZ, H. NEUNHOEFFER
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Synthesis of 1,2,4-triazines - XIV. Regioselective synthesis of ethyl 1,2,4-triazine-5-carboxylates
Tetrahedron, 1992Abstract Ethyl 1,2,4-triazine-5-carboxylates 6 were prepared by heating N,N-dimethylaminomethylene- or ethoxymethylenehydrazones 5 with ammonium acetate in acetic acid at 100°C. NMR studies confirmed the absence of their regio isomers (6-carboxylates), showing the high regioselectivity of this procedure.
Tadashi Ohsumi, Hans Neunhoeffer
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