Synlett 2019; 30(12): 1419-1426
DOI: 10.1055/s-0037-1611855
letter
© Georg Thieme Verlag Stuttgart · New York

A Highly Efficient Magnetic Iron(III) Nanocatalyst for Ferrier Rearrangements

Youxian Dong
,
Zekun Ding
,
Hong Guo
,
Le Zhou
,
Nan Jiang
,
Heshan Chen
,
Saifeng Qiu
,
Xiaoxia Xu
,
School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. of China   Email: jbzhang@chem.ecnu.edu.cn
› Author Affiliations

The project was supported by the Natural Science Foundation of Shanghai (11ZR1410400), large instruments Open Foundation of East China Normal University (20161043) and National Undergraduate Training Program for Innovation and Entrepreneurship (201710269030G).
Further Information

Publication History

Received: 03 April 2019

Accepted after revision: 15 May 2019

Publication Date:
19 June 2019 (online)


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Abstract

A novel and highly efficient magnetic Fe3O4@C@Fe(III) core–shell catalyst, in which the carbon shell was prepared from lotus leaf, was fabricated. This nanocatalyst was successfully applied in the synthesis of a series of 2,3-unsaturated O-glycosides in excellent yields and with high selectivity, especially in the case of 2-halo O-glycosides, which differ in reactivity from nonsubstituted O-glycosides, but which have scarcely been explored before. Moreover, the catalyst could be easily separated from the reaction by the application of an external magnetic force and reused a minimum of five times without any significant decrease in the yields of the products. In addition, the reaction proceeded readily on a gram scale, which provides a bright prospect for future applications.

Supporting Information