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Lewis Acid Rather than Brønsted Acid Sites of Montmorillonite K10 Act as a Powerful and Reusable Green Heterogeneous Catalyst for Rapid Cyanosilylation of Ketones

Xiao Huang*, Lin Chen, Fengying Ren, Chen Yang, Jianghong Li, Kejin Shi, Xiaojun Gou, Wei Wang*

*Sichuan Industrial Institute of Antibiotics, Chengdu University, 168 Huaguan Road, 610052, Chengdu, P. R. of China, Email: huangxiaocdu.edu.cn, wildwang_5hotmail.com

X. Huang, L. Chen, F. Ren, C. Yang, J. Li, K. Shi, X. Gou, W. Wang, Synlett, 2017, 28, 439-444.

DOI: 10.1055/s-0036-158864 (free Supporting Information)


Abstract

Commercial montmorillonite K10 as catalyst enables a practical green protocol for highly efficient cyanosilylation of various ketones with excellent isolated yields. After use, the catalytic strength of the clay can be easily restored.

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Key Words

montmorillonite, heterogeneous catalysis, cyanosilylation, ketones, green chemistry


ID: J60-Y2017