Cu24O24Si8R8: Organic Soluble 56-Membered Copper(I) Siloxane Cage and Its Use in Homogeneous Catalysis

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• 作者：Gengwen Tan ; Ying Yang ; Chenhui Chu ; Hongping Zhu ; Herbert W. Roesky
• 刊名：Journal of the American Chemical Society
• 出版年：2010
• 出版时间：September 8, 2010
• 年：2010
• 卷：132
• 期：35
• 页码：12231-12233
• 全文大小：179K
• 年卷期：v.132,no.35(September 8, 2010)
• ISSN：1520-5126

文摘

Organic soluble 56-membered copper(I) siloxane cage compound Cu₂₄O₂₄Si₈R₈ (1, R = (2,6-iPr₂C₆H₃)N(SiMe₃)) has been synthesized and structurally characterized. It consists of a copper silica-supported structure, in which the metal ions are two-coordinate and covalently anchored onto the cage surface and the weak metal···metal d¹⁰−d¹⁰ interactions are widely full within the cage, that is active in catalyzing the Ullmann−Goldberg-type C−N coupling reaction involving aryl or 2-thienyl bromides with heterocyclic nitrogen nucleophiles. This work provides insight into homogeneous catalysis utilizing the heterogeneous structure.