作者:Shuguang Zhang、Shuang Huang、Chengliang Feng、Jin Cai、Junqing Chen、Min Ji
DOI:10.3184/174751913x13709565021526
日期:2013.7
A new synthesis of the nonsteroidal anti-inflammatory drug tiaprofenic acid starting from thiophene is described. The sequence involves five steps, and the acylation with benzoyl chloride was catalysed by zinc oxide under solvent-free conditions at room temperature. This method uses a much cheaper starting material and has a higher total yield (78.4%) than other methods. It is suitable for industrial