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。
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