Synthesis of ionic liquids with herbicide functionality shows retained biological activity, implying potential applications in agriculture.
We report a novel series of ILs formed by coupling glycine betaine with the biologically active herbicide MCPA via an ester bond. ILs were synthesized through a 2-step O-alkylation process, followed by product isolation using flash chromatography. The alkyl chain length between the carboxylic groups determines solubility and octanol–water partition coefficient, whereas the rate of their hydrolysis is highly influenced by the pH of aqueous solution. All compounds retained the biological activity of the incorporated herbicide.
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Stachowiak et al. (2025) studied this question.
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