Four component DHARMA-synthesis of some densely functionalized 1,8-naphthyridines
摘要:
We report the one-pot synthesis of the triethylammonium salts of 5,7-diamino-4-aryl-2-(dicyanomethyl)-1,4-dihydro-1,8-naphthyridine-3,6-dicarbonitriles from the reaction of aromatic aldehydes, a malononitrile dimer and triethylamine. (C) 2015 Elsevier Ltd. All rights reserved.
Heterocyclization of michael adducts of β-diketones with arylmethylidene derivatives of malononitrile dimers
作者:A. Yu. Alekseeva、D. L. Mikhailov、I. N. Bardasov、O. V. Ershov、O. E. Nasakin、A. N. Lyshchikov
DOI:10.1134/s1070428014020171
日期:2014.2
Reaction of arylmethylidene derivatives of malononitrile dimer with 1,3-cyclohexanediones in anhydrous methanol in the presence of sodium methylate as catalyst affords 4-amino-5-aryl-2-methoxy-6-oxo-5,6,7,8,9,10-hexahydrobenzo[b][1,8]naphthyridine-3-carbonitrile. In the presence of strong electron-donor substituents in the benzene ring the reaction takes another route resulting in 4-amino-2-aryl-6-methoxypyridine-3
在无水甲醇中,在甲醇钠的催化下,丙二腈二聚体的芳基亚甲基衍生物与1,3-环己二酮反应,得到4-氨基-5-芳基-2-甲氧基-6-氧代5,6,7,8,9 ,10-六氢苯并[ b ] [1,8]萘啶-3-甲腈。在苯环中存在强电子给体取代基的情况下,该反应采用另一种途径,从而产生4-氨基-2-芳基-6-甲氧基吡啶-3,5-二腈。
A new heterocycle: furo[3,2-c]isoselenazole
作者:Ivan N. Bardasov、Denis L. Mikhailov、Anastasiya U. Alekseeva、Oleg V. Ershov、Viktor A. Tafeenko
DOI:10.1016/j.tetlet.2016.05.032
日期:2016.6
Newheterocycles, furo[3,2-c]isoselenazoles, were obtained by the reaction of 2-[amino(2-cyano-3-aryloxiran-2-yl)methylene]malononitriles with potassium selenocyanate.
通过2- [氨基(2-氰基-3-芳基氧杂-2-基)亚甲基]丙二腈与硒代氰酸钾的反应,获得了新的杂环呋喃[3,2- c ]异硒酚。
Synthesis of polyfunctional 2-thionicotinonitriles
作者:I. N. Bardasov、D. L. Mikhailov、M. Yu. Belikov、A. Yu. Alekseeva、O. V. Ershov
DOI:10.1134/s1070428016110087
日期:2016.11
of 2-amino-4-arylbuta-1,3-diene-1,1,3-tricarbonitriles with sulfur in benzonitrile affords 4-amino-6-aryl-2-thio-1,2-dihydropyridine-3,5-dicarbonitriles. They also are synthesized by an authentic synthesis from 4-amino-6-aryl-2-bromopyridine-3,5-dicarbonitriles and sodium hydrosulfide.
One-pot synthesis of 2-(dicyanomethylene)-1,2-dihydropyridine derivatives
作者:Ivan N. Bardasov、Anastasiya U. Alekseeva、Denis L. Mihailov、Oleg V. Ershov、Oleg E. Nasakin、Viktor A. Tafeenko
DOI:10.1016/j.tetlet.2014.03.056
日期:2014.4
The synthesis of 2-(dicyanomethylene)-1,2-dihydropyridine derivatives from the reactions of arylmethylidene derivatives of malononitrile dimers with 1,3-dicarbonyl compounds is described. (C) 2014 Elsevier Ltd. All rights reserved.
MIRC reactions of 4-aryl-2-aminobuta-1,3-diene-1,1,3-tricarbonitriles. Synthesis of 2-amino-6-aryl-5-cyano-4-(dicyanomethylidene)-3-azabicyclo[3.1.0]hex-2-ene-1-carboxylic acid esters and amides
作者:I. N. Bardasov、D. L. Mikhailov、A. Yu. Alekseeva、O. V. Ershov、Ya. S. Kayukov、O. E. Nasakin
DOI:10.1134/s1070428015060056
日期:2015.6
4-Aryl-2-aminobuta-1,3-diene-1,1,3-tricarbonitriles (benzylidene derivatives of malononitrile dimer) reacted with bromo(cyano)acetic acid amide and esters to give the corresponding 2-amino-6-aryl-5-cyano-4-(dicyanomethylidene)-3-azabicyclo[3.1.0]hex-2-ene-1-carboxylic acid amides and esters.