Synthesis of Substituted Pyranopyrazoles under Neat Conditions via a Multicomponent Reaction
作者:Boreddy Reddy、Arasampattu Nagarajan
DOI:10.1055/s-0029-1217526
日期:2009.7
A simple and efficient synthesis of pyranopyrazoles in good yields via a four-component reaction between an aromatic aldehyde, hydrazine hydrate, ethyl acetoacetate and malononitrile under neat conditions is described.