RAPID MICROWAVE-ENHANCED SYNTHESIS OF 1-PHENYL-3-METHYL- 5-ACYLOXYPYRAZOLES UNDER SOLVENT-FREE CONDITIONS
摘要:
The microwave-enhanced synthesis of 5-acyloxypyrazoles from 1-phenyl-3-methylpyrazole-5-one and acid chlorides under solvent-free conditions has been achieved in moderate to good yield.
O‐Acylation of 3‐Methylpyrazol‐5‐ones with Acylisothiocyanates
作者:Mykhaylo V. Vovk、Andrij V. Bol'but、Pavlo S. Lebed'
DOI:10.1081/scc-120030702
日期:2004.12.31
Abstract 3‐Methylpyrazol‐5‐ones 1 react by the O‐acylation pattern with acylisothiocyanates 2 in the solvent mixture ethanol–dioxane in the presence of the equimolar amount of potassium hydroxide to produce 5‐acyloxy‐3‐methyl‐1H‐pyrazoles 3.