Pentafluorophenyl tetrahydrothiophene gold I

Into a 250-mL round-bottomed two-neck flask provided with a Teflon-coated magnetic stirring bar, is placed a solution of (pentafluorophenyl)lithium (15 mmol) in 60 mL of diethyl ether at — 78°C (prepared as recently described). A suspension of chloro(tetrahydrothiophene)gold(I) (3.2 g, 10 mmol) in 30 mL of diethyl ether is added and the mixture is stirred under dry nitrogen for 10 min. It is slowly (1 h) allowed to warm to — 30 °C, permitting excess pressure to be vented, and the stirring is continued for other 15 min. The cooling system is removed and the mixture stirred for an additional 30 min. To 

Au(CeF5)(SC4Hg) + T1(C6F5)2C1 Au(CeF5)3(SQHg) + TlCl 

A 100-mL round-bottomed flask containing a Teflon-coated magnetic stirring bar and equipped with a reflux condenser is charged with 0.90 g (2 mmol) of (pentafluorophenyl) (tetrahydrothiophene)gold(I), 1.15 g (2 mmol) of 

The mixture is stirred for 45 min at room temperature, and subsequently for 2h at 80 °C. The precipitated thallium(I) chloride is Altered and the Altrate is evaporated to dryness. The white residue is extracted with 30 mL of dieth ether, concentrated to 8mL and addition of 30 mL of hexane causes precipitation of the white title complex. Yield 1.29 g (82%). 

A 100-mL round-bottomed flask containing a Teflon-coated magnetic stirring bar is charged with a solution of 0.69 g (1.5 mmol) of (pentafluorophenyl)(tetrahydrothiophene)gold(I) in 30 mL of ethanol 0.58 g (1.5 mmol) of (benzyl)triphenylphosphonium chloride (from Fluka AG) is added and the mixture is stirred at room temperature for 1 h. Concentration of the solution by removal of 20 mL of solvent under reduced pressure and cooling to 0 °C results in a white precipitate. This is separated by Altration and washed with two 5 mL portions of hexane. Yield 0.94 g (83%). 

AuCl(SC4H8) + LiC6F5 — Au(C6F5)(SC4H8) + LiCl 

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Pentafluorophenyl)(tetrahydrothiophene)gold(I) is a white crystalline solid, which is air and moisture stable at room temperature. It decomposes before melting (109 °C). It is very soluble in acetone, benzene, dichloromethane, diethyl ether, nitromethane, and tetrahydrofuran, soluble in ethanol and methanol, and insoluble in hexane. 

C1AuF5PC3,H22, Aurate(I), chloro-(pentafluorophenyl)-, (benzyl)triphenylphosphonium, 26 88 ClAuPCniH, Gold, chloro(triphenyl-phosphine)-, 26 325 C1AuSC4H8, Gold(I), chloro-(tetrahydrothiophene)-, 26 86... 

AuFjSCioHg, Gold(I), (pentafluorophenyl)-(tetrahydrothiophene)-, 26 86 AuFgOP5RuC73Hg2, Ruthenium(l+),... 

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