Tri-fert-butylphosphine

Form Supplied colorless liquid or low-melting solid approx. 10%(w/w) solution in hexane or as HBF4 salt as a white solid widely available in aU forms. 

Purification by vacuum distillation (102—103 °C, 13 Torr). Handling, Storage, and Precautions the pure material is pyrophoric and must be handled under an oxygen-free atmosphere to avoid spontaneous combustion. In the absence of oxygen, it is indefinitely stable. Solutions (ca. 10%) of tri-tert-butylphosphine are not pyrophoric, but should be handled under an inert atmosphere in order to avoid oxidation to the phosphine oxide. The HBF4 salt is air-stable. Tri-tert-butylphosphine is corrosive and causes burns on contact with skin. It is incompatible with oxidizing agents. 

A list of General Abbreviations appears on the front Endpapers 

Cross-coupling with Organometallic Reagents. Combinations of P(f-Bu)3 and palladium have been successfully applied 

Heck Couplings. P(f-Bu)3/Pd2(dba)3 is an effective catalyst system for the Heck coupling of aryl bromides or -chlorides with alkenes. Aryl bromides and electron-deficient aryl chlorides can 

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PFe04C 2H,4, IronfO), tetracarbonylfdi-methylphenylphospine)-, 26 61,28 171 PFe04C,4H27, lron(0), tetiacarbonyl(tri-fert-butylphosphine)-, 28 177... 

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