Tetrahedron p. 1745 - 1761 (2017)
Update date:2022-08-15
Topics:
Viani, Fiorenza
Rossi, Bianca
Panzeri, Walter
Merlini, Luca
Martorana, Alessandra M.
Polissi, Alessandra
Galante, Yves M.
1,2-Benzisothiazol-3(2H)-one (BIT) is one of the most common chemical biocides in industrial products, with a heterocyclic structure and a wide range of antimicrobial activity. A library of BIT derivatives was synthesized and characterized, from which 18 compounds were selected, tested for anti-bacterial activity relative to the parent molecule and amenable of coupling to plant polysaccharides in general and to galactomannans (GM) in particular, widely used as rheology modifiers, but with limited “biostability”. Four sites on the BIT core were targeted: the nitrogen and the oxygen atoms on the heterocyclic ring, the C5 and the C6 positions on the aromatic ring, where functional groups were introduced. The ultimate aim of this work is to establish whether by covalently linking a biocide to GM polymers, their “biostability” can be improved.
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