Asymmetric hydrogenation by RuCl2(R-Binap)(dmf)n encapsulated in silica-based nanoreactors
Asymmetric hydrogenation by RuCl2(R-Binap)(dmf)n encapsulated in silica-based nanoreactors
复制标题
封装在二氧化硅纳米反应器中的 RuCl2(R-Binap)(dmf)n 的不对称氢化
DOI:
10.1039/c4cy00228h
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发表时间:
2015-01
期刊:
影响因子:
--
通讯作者:
Qihua Yang
中科院分区:
文献类型:
--
作者:
Juan Peng;Xuefeng Wang;Xiaoming Zhang;Shiyang Bai;Yaopeng Zhao;Can Li;Qihua Yang
The Noyori catalyst RuCl2(R-Binap)(dmf)n has been successfully encapsulated in C-FDU-12 by using the active chlorosilane Ph2Cl2Si as the silylating agent. 31P-NMR results show that there is no strong interaction between the molecular catalyst and the solid support, thus the encapsulated molecular catalyst could move freely in the nanoreactor during the catalytic process. The solid catalyst exhibits high activity and enantioselectivity for the asymmetric hydrogenation of a series of β-keto esters due to the preserved intrinsic properties of RuCl2(R-Binap)(dmf)n encapsulated in the nanoreactor. The solid catalyst could be recycled by simple filtration and be reused at least four times.
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