Synthesis of Novel 1-H-Pyrazole-4-carboxylic Acid Esters by Conventional and Microwave Assisted Vilsmeier Cyclization of Hydrazones
摘要:
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.