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Short Paper | Regular issue | Vol 98, No. 2, 2019, pp.304-311
Published online, 8th February, 2019
DOI: 10.3987/COM-18-14025
Site-Selective Acylation of Carbohydrates Directed by Recyclable Polymer-Supported Isothiourea Catalysts

Wang-Ze Song,* Kun Dong, Ming Li, Jun-Hao Li, Karim Ullah, and Yu-Bin Zheng*

*School of Pharmaceutical Science and Technology, Dalian University of Technology, No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province 116024, China

Abstract

The polystyrene-supported isothiourea catalysts, derived from the homogeneous catalyst BTMs, were synthesized and applied to the site-selective acylation of carbohydrates. The catalysts can be recovered and reused conveniently for 10 cycles without significantly loss in either activity or selectivity. It offers a sustainable and environmentally benign approach for the site-selective functionalization of carbohydrates.