19449-26-4Relevant academic research and scientific papers
N-Alkylation of 4-Chloro-5-cyano-1,2,3-triazole with Orthoformic Acid Derivatives
Bulychev, Yu. N.,Preobrazhenskaya, M. N.,Chernyshev, A. I.,Esipov, S. E.
, p. 756 - 759 (1988)
The N-alkylation of 4-chloro-5-cyano-1,2,3-triazole with methyl and ethyl orthoformate, and the dimethyl, diethyl and ethylene acetals of DMF has been examined.Methylation gives all three N-methyl isomers, whereas ethylation and hydroxyethylation gives 2-N-alkyl derivatives only.It has been shown for the first time that it is possible to use DMF ethylene acetal to obtain N-hydroxyethylazoles.The structure of the products were established by 13C NMR spectroscopy.
Synthesis of the new types of N-substituted aminomethylenebisorganophosphorus acids and their derivatives
Prishchenko, Andrey A.,Livantsov, Mikhail V.,Novikova, Olga P.,Livantsova, Ludmila I.,Petrosyan, Valery S.
experimental part, p. 319 - 324 (2010/08/05)
The interaction of esters of trivalent organophosphorus acids containing PH and POSiMe3 fragments with various derivatives of formamide is proposed as convenient methods for the synthesis of new N-substituted aminomethylenebisorganophos-phorus acids and their derivatives with three-, four-, and five-coordinated phosphorus. Also the new functionalized derivatives of the new aminomethylenebisphosphinic acids with substituted hydroxymethyl moieties are synthesized, and some properties of the obtained compounds are presented.
NEW TYPES OF AMINOMETHYL ORGANOPHOSPHORUS COMPOUNDS
Prishchenko, A.A.,Livantsov, M.V.,Petrosyan, V.S.
, p. 1181 - 1193 (2007/10/02)
We studied aminomethylation of various PH acids their derivatives containing highly reactive PH, PSi, POSi and PC(O) fragments: tris(trimethylsilyl)phosphine, trimethylsilyl esters of phosphorus(III) acids, pivaloylphosphonite, and hydrospirophosphoranes.Chloro-, alkoxy- or dialkylaminomethylamines, dialkylformamide acetals, azomethines, and enamines were used as aminomethylating reagents.Convenient methods for synthesizing previously unknown or difficult-to-obtain organic compounds of two-, three-, four, and five-coordinate phosphorus containing a P-C-N fragment were proposed.
