Inter- and Intramolecular Cyclisation Reactions of Azoacetates Derived from Aryl Hydrazones of Ethylacetoacetate and Acetoacetanilides
作者:John P. James、Neil O’Halloran、Carol A. Downey、Patrick O’Malley、Thomas Duff、Samuel Bertrand
DOI:10.3987/com-08-11433
日期:——
Ethyl Acetoacetate 4-Nitrophenylhydrazone and 1-(4'-Nitrophenyl)-3-methylpyrazolone-5
作者:Ward C. Sumpter、Phil H. Wilken
DOI:10.1021/ja01185a524
日期:1948.5
Hydrazones of acetoacetic ester ? A new type of 1,4-dinucleophiles for the annelation of a pyridazine ring
作者:V. N. Charushin、V. G. Baklykov、O. N. Chupakhin、T. Yu. Pushkareva
DOI:10.1007/bf00506083
日期:1985.5
Synthesis of Novel 1-<i>H</i>-Pyrazole-4-carboxylic Acid Esters by Conventional and Microwave Assisted Vilsmeier Cyclization of Hydrazones
作者:Radhakrishnan Sridhar、Paramasivan T. Perumal
DOI:10.1081/scc-120018766
日期:2003.1.5
A convenient method for the synthesis of 1H-pyrazole-4-carboxylic acid esters is described. A comparison between the conventional and microwave assisted Vilsmeier reaction is carried out.