Some new water-soluble alkyltriarylphosphonium salts are reported. Their solubility is due to the presence of either carboxy or hydroxy groups on the phenyl rings attached to phosphorus. Examples of both benzyl- and butylphosphonium salts are presented and investigation into their Wittig reactions with a range of aldehydes using water as the solvent is described.
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Russell et al. (2000) studied this question.
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