One-pot synthesis of functionalized pyrazolo[3,4-c]pyrazoles by reaction of 2-cyano-N-methyl-acrylamide, aryl aldehyde, and hydrazine hydrate
摘要:
A simple and efficient procedure for the synthesis of novel 4-aryl pyrazolo[3,4-c]pyrazol-3(2H)-ones via a one-pot, three-component reaction between 2-cyano-N-methylacetamide, aryl aldehydes, and hydrazine hydrate in the presence of Et3N in DMF is reported. Products are obtained in good yields and their structures are supported by their spectroscopic data and combustion analysis.[GRAPHICS].
One-pot synthesis of functionalized pyrazolo[3,4-c]pyrazoles by reaction of 2-cyano-N-methyl-acrylamide, aryl aldehyde, and hydrazine hydrate
摘要:
A simple and efficient procedure for the synthesis of novel 4-aryl pyrazolo[3,4-c]pyrazol-3(2H)-ones via a one-pot, three-component reaction between 2-cyano-N-methylacetamide, aryl aldehydes, and hydrazine hydrate in the presence of Et3N in DMF is reported. Products are obtained in good yields and their structures are supported by their spectroscopic data and combustion analysis.[GRAPHICS].
Reaction of methyl 1-bromocyclohexanecarboxylate with zinc and 3-aryl-2-cyanopropenoic acids amides
作者:N. F. Kirillov、E. A. Nikiforova、S. N. Shurov、P. A. Slepukhin、M. I. Vakhrin
DOI:10.1134/s1070363212070079
日期:2012.7
Methyl 1-bromocyclohexanecarboxylate reacts with zinc and amides or methylamides of 3-aryl-2-cyanopropenoic acids to give 5-aryl-1,3-dioxo-2-azaspiro[5.5]undecane-4-carbonitriles or 5-aryl-2-methyl-1,3-dioxo-2-azaspiro[5.5]undecane-4-carbonitriles.