Formation of 4-hydroxy-5-[aryl(alkyl)-1H-pyrazol-4-yl]benzene-1,2-dicarbonitriles in reactions of benzofurans with hydrazines
摘要:
Some regularities are discussed of the reaction between 3-substituted benzofuran-5,6-dicarbonitriles with hydrazines leading to the formation of new 4-hydroxy-5-[aryl(alkyl)-1H-pyrazol-4-yl]-benzene-1,2-dicarbonitriles.
Synthesis of 5,6-dicyanobenzofurans based on 4-bromo-5-nitrophthalonitrile
摘要:
A new stereoselective method for the synthesis of substituted 5,6-dicyanobenzofurans by activated aromatic nucleophilic replacement of a bromine atom and a nitro group in 4-bromo-5-nitrophthalonitrile has been developed.
Formation of 4-hydroxy-5-[aryl(alkyl)-1H-pyrazol-4-yl]benzene-1,2-dicarbonitriles in reactions of benzofurans with hydrazines
作者:Zh. V. Chirkova、M. V. Kabanova、D. V. Luferenko、S. I. Filimonov、I. G. Abramov
DOI:10.1134/s1070428015050103
日期:2015.5
Some regularities are discussed of the reaction between 3-substituted benzofuran-5,6-dicarbonitriles with hydrazines leading to the formation of new 4-hydroxy-5-[aryl(alkyl)-1H-pyrazol-4-yl]-benzene-1,2-dicarbonitriles.
Synthesis of 5,6-dicyanobenzofurans based on 4-bromo-5-nitrophthalonitrile
作者:Sergei I. Filimonov、Zhanna V. Chirkova、Igor G. Abramov、Alexander S. Shashkov、Sergey I. Firgang、Galina A. Stashina
DOI:10.1016/j.mencom.2009.11.013
日期:2009.11
A new stereoselective method for the synthesis of substituted 5,6-dicyanobenzofurans by activated aromatic nucleophilic replacement of a bromine atom and a nitro group in 4-bromo-5-nitrophthalonitrile has been developed.