Beta W7 MCT — New Ways in Surface Modification

Abstract

BETA W7 MCT is the first reactive cyclodextrin derivative manufactured on an industrial scale. It has a monochlorotriazinyl group as a reactive anchor well known from many reactive dyes. This derivative is able to form stable covalent bonds with nucleophilic groups and can be easily prepared in water in an effective one pot synthesis from cyanuric chloride and β-cyclodextrin in a yield of approx. 90% based on the triazinyl group. The optimised degree of substitution of DS = 0.4 per anhydroglucose ensures a good complexation capacity even when this derivative is fixed to surfaces like textiles. This cyclodextrin derivative containing 2-3 reactive groups in the ring can be used as building block for new CD derivatives, as a crosslinking agent or as an excellent material for surface modification.