首页> 中文期刊> 《中国化学(英文版)》 >Silica Gel-Supported Polyphosphoric Acid(PPA/SiO2): An Efficient and Reusable Heterogeneous Catalyst for Faclle Synthesis of 14-Aryl-14H-dibenzoa,jxanthenes under Solvent-free Conditions

Silica Gel-Supported Polyphosphoric Acid(PPA/SiO2): An Efficient and Reusable Heterogeneous Catalyst for Faclle Synthesis of 14-Aryl-14H-dibenzoa,jxanthenes under Solvent-free Conditions

         

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