使用2-酰基(芳酰基)-1,1,3,3-四氰基丙烯与气态卤化氢的反应获得2-氨基-3-芳酰基(酰基)-6-卤代吡啶-3,5-二甲腈,其为随后通过用氯仿处理转化为相应的4-氨基-1-芳基-6-卤代-1-羟基-3-氧代-2,3-二氢-1 H-吡咯并[3,4- c ]吡啶-7-腈。浓硫酸,然后进行水后处理。
使用2-酰基(芳酰基)-1,1,3,3-四氰基丙烯与气态卤化氢的反应获得2-氨基-3-芳酰基(酰基)-6-卤代吡啶-3,5-二甲腈,其为随后通过用氯仿处理转化为相应的4-氨基-1-芳基-6-卤代-1-羟基-3-氧代-2,3-二氢-1 H-吡咯并[3,4- c ]吡啶-7-腈。浓硫酸,然后进行水后处理。
Annulation of pyrrole ring in 4-acylpyridine-3,5-dicarbonitriles in the presence of ammonia
作者:Arthur A. Grigor’ev、Yakov S. Kayukov、Anastasiya L. Nikiforova、Sergey V. Karpov、Ekaterina S. Shchegravina、Olga V. Kayukova、Victor A. Tafeenko
DOI:10.1007/s10593-019-02434-4
日期:2019.2
4-Acyl-2-amino-6-chloropyridine-3,5-dicarbonitriles underwent heterocyclization in the presence of ammonia in aqueous dioxane medium, involving the ortho-ketonitrile fragment while preserving the halogen atom. The pyrrole ring annulation process proceeded regioselectively with the formation of a single positional isomer.
2-Acyl(aroyl)-1,1,3,3-tetracyanopropenides: III. Heterocyclization by the action of hydrogen halides
作者:S. V. Karpov、Ya. S. Kayukov、I. N. Bardasov、O. V. Kayukova、K. V. Lipin、O. E. Nasakin
DOI:10.1134/s107042801110006x
日期:2011.10
2-Acyl(aroyl)-1,1,3,3-tetracyanopropenides reacted with hydrogenhalides along two concurrent pathways with formation of furan or pyridine derivatives. The reaction in butan-2-ol afforded 2-amino-4-acyl-(aroyl)-6-halopyridine-3,5-dicarbonitriles, whereas the major products in the reactions with HCl and HBr in aqueous solution were the corresponding 2-(5-amino-2-aryl-2-chloro(bromo)-4-cyano-2,3-dih
Synthesis of
4-Acyl-2-amino-6-(arylsulfanyl)pyridine-3,5-dicarbonitriles
作者:Ya. S. Kayukov、S. V. Karpov、O. V. Kayukova、A. A. Grigor’ev
DOI:10.1134/s1070428020070283
日期:2020.7
The reaction of 4-acyl-2-amino-6-chloropyridine-3,5-dicarbonitriles with aromatic thiols in 1,4-dioxane in the presence of triethylamine led to the formation of 4-acyl-2-amino-6-(arylsulfanyl)pyridine-3,5-dicarbonitriles.