Dialkylfosfiineja

Dialkylfosfiineja, also known as dialkylphosphines, are organophosphorus compounds with the general formula R2PH, where R represents an alkyl group. These compounds are characterized by a phosphorus atom bonded to two alkyl groups and one hydrogen atom. Dialkylphosphines are often colorless liquids with a strong, unpleasant odor. They are typically air-sensitive, reacting with oxygen to form phosphine oxides. Their reactivity stems from the lone pair of electrons on the phosphorus atom and the P-H bond.

Dialkylphosphines are often prepared through the reduction of dialkylphosphinic acids or by the alkylation of phosphine. They are used as ligands in coordination chemistry, forming complexes with various transition metals. These complexes find applications in catalysis, particularly in homogeneous catalysis for reactions such as hydrogenation and hydroformylation. In some cases, dialkylphosphines can also act as nucleophiles or reducing agents. Their synthesis and handling require careful attention due to their air sensitivity and potential toxicity.