<scp>Microwave‐assisted</scp>
decarboxylation of
<scp>
2
<i>H</i>
‐Pyran‐3‐carboxylic
</scp>
acid derivatives under basic condition
作者:Uttam Kumar Mishra、Chandralata Bal
DOI:10.1002/jhet.4559
日期:2022.12
Despite the availability of several methods for decarboxylation, this area remains exploratory and requires new development. Here, we report a highly efficient microwave-assisted hydrodecarboxylation of 4-(methylthio)-2-oxo-6-aryl-2H-pyran-3-carboxylic acids (1a-k) under basic condition to obtain 4-(methylthio)-6-aryl-2H-pyran-2-ones (2a-k) with >90% yield. The requirement of proton source from the