Organogold

H. Schmidbauer, "Organogold Compounds," Gmelin Handbook of Inorganic Chemisty, Spriuger-Vedag, Berlin, 1980. 

The reactivity pattern of some organogold derivatives is of interest. Thus, complex 90 oxidatively adds molecular chlorine, bromine, or iodine to yield the gold(III) product 103 (97JOM(544)91, 98JOM(552)69). The latter is... 

Figure 4.25 Synthesis of an organogold(III) compound by an unusual oxidative addition...

There are considerable numbers of the organogold compounds [3(b), 9,154], principally in the +1 and +3 oxidation states. Gold is unusual in transition metals in that, even in the +1 state, it has a marked preference for forming a-rather than zr-bonds, presumably related to the tendency of gold(I) to linear 2-coordination. 

Figure 4.33 Syntheses of organogold compounds by oxidative addition to a gold(l) compound.

See Gmelin Handbook of Inorganic Chemistry, Au. Organogold Compounds, Springer-Verlag, Berlin, 1980, p. 260, for a good review of these compounds. 

Catalysis of strained bond re- 8 arrangements by silver(I) ion (43) The chemistry of organogold com- 13 pounds (94)... 

Vaughan, LG. (1970) Organogold chemistry. III. 2-Pyridylgold(I). Journal of the American Chemical Society, 11,730-731. 

Kilpin, K.J., Henderson, W. and Nicholson, B.K. (2007) Synthesis, characterisation and biological activity of cycloaurated organogold(III) complexes with imidate ligands. Polyhedron, 26, 204. 

When 4, 4 -dimethyl-2 -(2-thienyl)-2 -oxazoline lithiated at is reacted with [Au (CgFs) (tht)] the organogold complex analogous to the previous example was obtained. 

Very recently, it was shown that a homoleptic rearrangement in the mononuclear organogold(III) derivative ]Au(C6F5)3(tht)] gives [Au(C6F5)4][Au(C6F5)2(tht)2] which was structurally characterized [41]. 

Vaughan, L.G. and Sheppard, W.A. (1969) New organogold chemistry. I. Synthesis and fluorine-19 nuclear magnetic resonance studies of some fluoroorganogold compounds. Journal of the American Chemical Society, 91(22), 6151-6156. 

Uson, R., Laguna, A., Vicente, J. and Garcia, J. (1976) Preparation of organogold(III) complexes by oxidizing dichloro-, or bis(pentafluorophenyl)-p-bis (diphenylphosphino)ethanedigold(l). Journal of Organometallic Chemistry, 104(3), 401 06. 

M. N., Jones, P.G. and Erdhruegger, C.F. (1989) (Diphenylphosphinomethyl) diphenylphosphine sulfide (Ph2PCH2PPh2S) and its methanide anion Ph2PCHPPh2S- as ligands in organogold chemistry. X-ray crystal structure of [(diphenylphosphino) (diphenylthiophosphinoyl)methanido-P, S]his(pentafluorophenyl)gold(l 11). 

Chan, M.C.-W. and Che, C.-M. (1998) Application of 2,6-diphenylpyridine as a tridentate [C N C] dianionic ligand in organogold(III) chemistry. Structural and spectroscopic properties of mono- and binuclear transmetalated gold(III) complexes. Organometallics, 17, 3505-3511. 

The reaction with active methylene compounds results in the hydrogen abstraction to give the alcohol and the organogold derivatives.178... 

This chapter summarizes work published in the general area of organogold chemistry in the period 1994-2005. It complements the accounts presented in COMC (1995) and COMC (1982). Results already included in these previous treatises are generally not duplicated in this edition. Only a few general remarks are made as an introduction to each individual chapter, and key references to older work are given where appropriate. 

The reader should note that there is a fully comprehensive coverage of organogold chemistry up to the year 1980 in the Gmelin Handbook of Inorganic Chemistry,3 Apart from COMC (1982) and COMC (1995), later reviews are available in Encyclopedia of Inorganic Chemistry and in a monograph,5 as a compilation of preparative procedures in the two leading series oriented at synthetic chemistry,6 7 and as summaries of theoretical work.8,9... 

Ylide complexes of gold are unique in that they exhibit an exceptional chemical and thermal stability, which facilitates preparative and structural work very considerably. It was in this class of compounds that a large variety of true organogold(ll) and mixed valence organogold(l)/(lIl) complexes was discovered. These are rare in the remainder of organogold chemistry. 

Gold(i) alkynyls and their complexes have been an important class of organogold compounds from the very beginning of organogold chemistry.2 By contrast, the class of gold(m) alkynyls is poorly developed and only a small number of representative compounds is known. Alkynylgold compounds have recently been reviewed, focusing on various aspects of their chemistry.40-43... 

Mixed-ligand anions [RC=CAuX] are rare in organogold chemistry. Selected examples have been obtained from reactions of [RC=CAuL oligomers with halides Q+X, from Q[Au(acac)2] salts with alkynes, followed by acids HX in the molar ratio 1 1 1, and from complexes (tht)AuCl (tht = tetrahydrothiophene) or [(Ph3P)2C]AuCl with an alkyne and a base (1 1 1). Known examples of products include salts Q+[HC=CAuCl/Br]-72 and [(Ph3P)2CH]+[PhC=CAuCl]. 52,53 Anions with mixed alkynyl/aryl substituents are present in... 

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