Synthesis of a new functionalized pyridoxine derivatives based on 2-halopyridine-3,4-dicarbonitriles
作者:Sergey V. Fedoseev、Mikhail Y. Belikov、Konstantin V. Lipin、Oleg V. Ershov、Victor A. Tafeenko
DOI:10.1080/00397911.2021.2007403
日期:2022.1.2
with hydroxymethyl groups at positions 3 and 4 of the pyridine ring have been implemented based on the transformations of 2-halopyridine-3,4-dicarbonitriles. The first path involves obtaining target compounds with a halogen atom in the 2-position of pyridine by reduction of intermediate pyridine-3,4-dicarboxylates with sodiumborohydride. The second approach is based on the reduction of annelated furo[3
摘要 基于 2-卤代吡啶-3,4-二甲腈的转化,已经实施了两种合成吡啶环 3 位和 4 位具有羟甲基的官能化吡哆醇衍生物的新方法。第一条途径涉及通过用硼氢化钠还原中间体吡啶-3,4-二羧酸盐来获得在吡啶的2-位具有卤素原子的目标化合物。第二种方法基于还原呋喃[3,4- c ]吡啶-3(1 H )-酮,并允许获得2-卤素-和2-烷基氨基-取代的吡哆醇衍生物。
Synthesis of dinitrochloromethyl pyridine derivatives
作者:O. V. Ershov、V. N. Maksimova、M. Yu. Ievlev、M. Yu. Belikov、V. A. Tafeenko
DOI:10.1134/s1070428017070120
日期:2017.7
Reactions of 2-halo-6-methylpyridine-3,4-dicarbonitriles with nitric acid in the presence of hydrochloricacid led to the formation of 6-(chlorodinitromethyl)-2-halopyridine-3,4-dicarbonitriles.
Tunable full-color emission of stilbazoles containing a 2-halo-3,4-dicyanopyridine acceptor
作者:Anastasia I. Ershova、Sergey V. Fedoseev、Sergey A. Blinov、Mikhail Yu. Ievlev、Konstantin V. Lipin、Oleg V. Ershov
DOI:10.1039/d3ob01326j
日期:——
Synthesis of a series of novel push–pull stilbazole-based chromophores containing a strong 2-halocinchomeronic dinitrile acceptor is reported. The photophysicalproperties of the compounds are described. Strong positive solvatofluorochromism typical of intramolecular charge transfer (ICT) dyes is observed for the synthesized stilbazoles. Their tunable multicolor emission ranges from 442 nm to 710 nm
Regioselective addition of primary amines to 2-halopyridine-3,4-dicarbonitriles. Synthesis of pyrrolo[3,4-c]pyridines
作者:V. N. Maximova、A. I. Naidenova、O. V. Ershov、O. E. Nasakin、V. A. Tafeenko
DOI:10.1134/s1070428017050086
日期:2017.5
Reaction of 2-chloropyridine-3,4-dicarbonitriles with primary amines in the presence of potassium carbonate in ethanol results in the fusion of pyrrole cycle and the formation of N (1)-substituted 4-halo-1H-pyrrolo-[3,4-c]pyridine-1,3(2H)-diimines.
Synthesis of new derivatives of 2-halocinchomeronic acid
作者:M. Yu. Belikov、O. V. Ershov、V. N. Maksimova、S. V. Fedoseev