Catalysis Communications

Palladium supported on amine-functionalized mesoporous silica: Highly efficient phosphine-free catalyst for alkyne–alkyne cross-coupling reaction

H Li, L Wang, M Yang, Y Qi

Index: Li, Hongling; Wang, Lailai; Yang, Min; Qi, Yanxing Catalysis Communications, 2012 , vol. 17, p. 179 - 183

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Citation Number: 24

Abstract

An amine-functionalized mesoporous silica SBA-15 supported palladium catalyst was prepared and characterized. For the first time, this supported palladium has been used as an efficient phosphine-free and reusable catalyst for the cross-coupling of haloalkynes with terminal alkynes. A variety of haloalkynes and aromatic/aliphatic terminal alkynes were selectively coupled to afford unsymmetrical 1, 4-disubstituted 1, 3-diynes in good yields.