Efficient PPA-SiO2-catalyzed Synthesis of β-enaminones Under Solvent-Free Conditions
作者:Muhammad Nisar、Ihsan Ali、Muhammad Shah、Mughal Qayum、Muhammad Zia-Ul-Haq、Umer Rashid、Md. Islam
DOI:10.3390/molecules181215182
日期:——
An efficient method has been developed for the synthesis of β-enaminones under solvent-free reaction conditions using PPA-SiO2 as catalyst. The reaction yields were good to excellent (up to 90%). This methodology affords high selectivity and good tolerance of a variety of different functional groups present on both aromatic and aliphatic amines. In addition, the methodology is environmentally benign and cost-effective due to absence of solvent and easy work-up.