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《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