Diethoxytriphenylphosphorane (DTPP) is easily prepared by oxidative addition of triphenylphosphine with diethyl peroxide. DTPP converts a variety of mercaptoalcohols to cyclic sulfides as well as hydroxythioethers. The temperature dependence (+25 → −25°C) of the product distribution has synthetic potential.
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Robinson et al. (1987) studied this question.
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