Given the fundamental role of C-C bond formation in synthetic chemistry,the development of effective acid-base catalysts is a significant and challenging endeavor.In this study,a high-nuclearity Ag-substituted tetrame...Given the fundamental role of C-C bond formation in synthetic chemistry,the development of effective acid-base catalysts is a significant and challenging endeavor.In this study,a high-nuclearity Ag-substituted tetrameric sandwich-type polyoxometalate was synthesized using simple materials via a one-pot strategy.The{Ag_(16)}cluster of the sandwich is protected and stabilized by four trivacant POM ligands,while four additional silver atom active sites remain exposed.Furthermore,compound 1 demonstrates considerable catalytic activity for C-C bond formation in the Knoevenagel condensation and cyanosilylation reactions,which can be attributed to its substantial acid-base active sites.展开更多
基金financially supported by the National Natural Science Foundation of China(Grants 22171071,22171075,22071044,and 21771054).
文摘Given the fundamental role of C-C bond formation in synthetic chemistry,the development of effective acid-base catalysts is a significant and challenging endeavor.In this study,a high-nuclearity Ag-substituted tetrameric sandwich-type polyoxometalate was synthesized using simple materials via a one-pot strategy.The{Ag_(16)}cluster of the sandwich is protected and stabilized by four trivacant POM ligands,while four additional silver atom active sites remain exposed.Furthermore,compound 1 demonstrates considerable catalytic activity for C-C bond formation in the Knoevenagel condensation and cyanosilylation reactions,which can be attributed to its substantial acid-base active sites.
