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Triphenylphosphine Oxide Removal from Reactions: The Role of Solvent and Temperature

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journal contribution
posted on 19.05.2021, 17:39 by Yasinalli Tamboli, Bharat B. Kashid, Ram Prasad Yadav, Mohammad Rafeeq, Ravindra Yeole, Arvind Y. Merwade
Here, a large-scale feasible, chromatography-free process to purge triphenylphosphine oxide (TPPO) from the crude product of Mitsunobu and Wittig reactions has been developed. Divergence in physicochemical properties like polarity and solubility of TPPO against the product was utilized to precipitate TPPO directly from the reaction mixture and eliminate by simple filtration on a kilogram scale at a pilot plant with high purity of the product.

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