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Formation and Characterization of Neutral and Cationic Amino(thio)carbene Complexes of Gold(I) from Thiazolyl Precursors

DOI: 10.1039/DT9940002091

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2091 - 2098 (1994)

Update date:2022-08-05

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Authors:

Raubenheimer, Helgard G.Raubenheimer, Helgard G.

Scott, FredScott, Fred

Kruger, Gert J.Kruger, Gert J.

Toerien, James G.Toerien, James G.

Otte, RonaldOtte, Ronald

et al.et al.

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Article abstract of DOI:10.1039/DT9940002091

Benzothiazole-2-yl-, 4-methylthiazolyl- and thiazolyl-lithium reacted with (tht =tetrahydrothiophene) to form bis(thiazolyl)aurate compounds which can be protonated or alkylated to give mono- and bis-(carbene) complexes of the type and 1=CX2S)2>(+) (X1X2 = C4H4; X1 = Me, X2 = H; X1 = X2 = H; R = H or Me).The strongly ligated gold phosphine and perfluorophenyl complexes and as well as AuCN also reacted with the thiazolyllithiums to afford, upon protonation or alkylation, cationic and neutral carbene compounds.Complicating side-reactions, such as homoleptic rearrangement, protonation or alkylation on carbon rather than nitrogen and dissociative polymerization were observed.The crystal structure of the neutral mono(carbene) complex shows a gold-gold interaction with a distance of 3.075(1) Angstroem.

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