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Description

Diphenylphosphine is an organophosphorus compound commonly used in laboratories, characterized by its clear, colorless to slightly yellow appearance and unpleasant odor. It is highly reactive, easily oxidized in air, and can spontaneously combust, thus requiring protection from air and light, typically under nitrogen.

Uses

As a precursor in the synthesis of various organophosphine ligands, Diphenylphosphine plays a crucial role in homogeneous catalysis applications such as asymmetric hydrogenation, coupling reactions, and polymerization of alkenes. Diphenylphosphine is produced by deprotonating Ph2PH to obtain diphenylphosphide, which can then be used to create novel phosphine ligands, Wittig-Horner reagents, and phosphonium salts. It is also valuable in organic synthesis, particularly in the preparation of pesticides and chiral phosphine ligands. The compound can be synthesized from triphenylphosphine through reduction to lithium diphenylphosphide, followed by protonation.

Chemical Properties

Diphenylphosphine is an organophosphorus compound commonly used in laboratories. It is a clear colorless to slightly yellow liquid with unpleasant odor, irritating, easily oxidized in air and spontaneously combusts, sensitive to air and light, and needs to be protected by nitrogen. It can be used as a precursor for the synthesis of a variety of organophosphine ligands. These ligands, in turn, are used in homogeneous catalysis for many applications including: asymmetric hydrogenation, coupling chemistry, ethylene oligomerization, hydroformylation, hydration of nitriles, and polymerization of alkenes.