In addition to Vaska's complex and
Sulfonating this compound creates the water-soluble compound TPPTS. Chloride, carbon monoxide, and two of this molecule are the four ligands for one compound that reacts reversibly with dioxygen and dihydrogen and has a central iridium atom. Three molecules of it are ligands in a 16-electron rhodium-containing homogeneous catalyst for hydrogenation. In addition to Vaska's complex and (*) Wilkinson's catalyst, this molecule with a cone angle of 145 degrees reacts with diethylazodicarboxylate to form an intermediate that activates the oxygen atom of an alcohol as a leaving group in the Mitsunobu reaction, and converts azides to primary amines in the Staudinger reaction. It reacts with an alkyl halide, then with a strong base, to generate a phosphorane commonly used in a reaction that may proceed through a betaine intermediate. For 10 points, name this bulky phosphine used in the Wittig reaction.
Sulfonating this compound creates the water-soluble compound TPPTS.
triphenylphosphine or triphenylphosphane or PPh3 or Ph3P 