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Triphenylphosphine oxide is used as a catalyst, Lewis base, ligand for metals and starting material for the preparation of other phosphorus compounds. It is also used in epoxidations, Michael reactions and coupling reactions. It reacts with copper(II) halides and form coordination complexes of Copper(II). Further, it acts as a crystallization aid for chemical compounds. In addition to this, it is used for processing, extraction, separation and spectrophotometric determination of cadmium and mercury.
The reagent prepared from a 2:1 molar ratio of the phosphine oxide and triflic anhydride is a useful dehydrating agent, e.g. for preparation of nitriles from amides or oximes, or of amides from acids and amines: J. Org. Chem., 52, 4137 (1987). In combination with triethylamine, the reagent also dehydrates activated ketones to alkynes: Synthesis, 217 (1989).
Zhang, Y.; Miyake, J.; Akiyama, R.; Miyatake, K. Ladder-type aromatic block copolymers containing sulfonated triphenylphosphine oxide moieties as proton conductive membranes. Polymer 2015, 77, 152-155.
Sun, D.; Fu, Q.; Ren, Z.; Li, H.; Ma, D.; Yan, S. Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices. Polym. Chem. 2014, 5 (1), 220-226.
Dichiarazioni di rischio (UE): H302
Harmful if swallowed.
Dichiarazioni precauzionali: P264-P270-P301+P312a-P330-P501a
Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Rinse mouth. Dispose of contents/container in accordance with local/regional/national/international regulations.