Diphenylphosphanyl phenyl--isopropyl

The residue was purified by silica gel chromatography (hexane-ethyl acetate, 30 1-4 6) to give (7 )-2-[2-(diphenylphosphanyl)phenyl]-7-isopropyl-6,7-dihy-dro-5//-l-pyrindine (292.1 mg, 99 %) as an oil. 

In a 5 mL round-bottomed flask equipped with a magnetic stirrer was placed bis(benzonitrile)palladium(II) chloride under nitrogen. To this flask was added (R)-2-[2-(diphenylphosphanyl)phenyl]-7-isopropyl-6,7-dihydro-5H-l-pyrindine (2.3 mg) in anhydrous THF (0.4 mL) and the mixture was stirred at room temperature for 1 h. 

In 2005, Carmona et al. [50] reported the synthesis and characterization of iridium(I) complex with the (4S)-2-[2-(diphenylphosphanyl)phenyl]-4-isopropyl-l,3-oxazoline ligand, (159), and the hydrido-(enolato)Ir(III) complex [Ir(acac)ClH (S)-PN ] (160) (Scheme 16.42). These phosphanyloxazoline iridium complexes and the related bis(S)-PN ligand cationic compounds were found to be active catalysts for the Michael addition of keto or cyano esters to a,P-unsaturated carbonyl compounds, provided quantitative yield of the desired products (158a) and (158b) with modest enantioselectivity (up to 39% ee), respectively. 

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