芳烃的过渡金属催化烷基化反应已成为有机合成的核心转化。在此,我们报告了第一个由碳基材料催化的芳烃与苯乙烯和醇类烷基化的一般策略,利用石墨烯的独特性质以高产率和优异的区域选择性生产有价值的二芳基烷烃产品。该协议的特点是广泛的底物范围和出色的官能团耐受性。值得注意的是,该过程构成了石墨烯的第一个普遍应用,以利用锚定在 GO 表面上的极性官能团促进直接 CC 键的形成,从而为使用良性且易于获得的石墨烯材料进行一系列官能团烷基化打开了大门。
An Effective Bismuth-Catalyzed Benzylation of Arenes and Heteroarenes
作者:Magnus Rueping、Boris J. Nachtsheim、Winai Ieawsuwan
DOI:10.1002/adsc.200606068
日期:2006.6
A highly efficient Bi(OTf)3-catalyzed benzylation of arenes and heteroarenes has been developed. The mild reaction conditions, high yields, operational simplicity and practicability, broad scope, and remarkably low catalyst loading render this environment friendly process an attractiv approach to diarylmethane derivatives. The extension to an intramolecular variant of this procedure provides a valuable
[reaction: see text] 1,1-Diarylalkanes are easily synthesized by CH-functionalization reactions of electron-rich arenes and heteroarenes with styrenes in the presence of FeCl(3) as catalyst.
Efficient and General Continuous-Flow Hydroarylation and Hydroalkylation of Styrenes
作者:Magnus Rueping、Teerawut Bootwicha、Erli Sugiono
DOI:10.1002/adsc.201000538
日期:2010.11.22
A simple and efficient continuous-flow hydroarylation of arenes and heteroarenes using various styrenes in conjunction with a heterogeneous catalyst has been developed. Additionally, this method has been successfully extended to the hydroalkylation of styrenes by employing 1,3-dicarbonyl compounds as the nucleophile. Multigram quantities of diarylmethanes have been prepared using this new flow method
Efficient Metal-Catalyzed Hydroarylation of Styrenes
作者:Magnus Rueping、Boris J. Nachtsheim、Thomas Scheidt
DOI:10.1021/ol0612962
日期:2006.8.1
[reaction: see text] A highly efficient metal-catalyzed hydroarylation of various styrenes has been developed. This new bismuth-catalyzed C-H functionalization provides straightforward access to a series of valuable 1,1-diarylalkane products.
作者:Darapaneni Chandra Mohan、Rajendra D. Patil、Subbarayappa Adimurthy
DOI:10.1002/ejoc.201200283
日期:2012.6
The hydroarylation of styrenes with various arene(heteroarene) compounds using H-β-zeolite as a green and recyclable heterogeneous catalyst under mild reaction conditions has been developed. The catalyst showed versatility and high selectivity (up to 100 %) of desired 1,1-diarylalkanes in cyclohexane as solvent under the conditions studied. The catalyst could be reactivated by simple treatment with