New Carbenegold(I) Complexes Synthesized by the “Acac Method”

The reaction of [AuCl{C(NEt2)NHtBu}] with Tl(acac)] (1:1) gives [Au(C-acac){C(NEt2)NHtBu}] (1). Complex 1 reacts with 2-pyridinethiol (HSpy-2), C6H4(C⋮CH)2−1,3 (2:1), [Ph3PCH2CO2Me]ClO4, [Me3S(O)]ClO4, or [Me3NH]ClO4 to give, respectively, [Au(Spy-2){C(NEt2)NHtBu}] (2), [{AuC(NEt2)NHtBu}2(μ−C⋮CC6H4C⋮C-3)] (3), [Au{C(NEt2)NHtBu}{CH(PPh3)CO2Me}]ClO4 (4), [Au{C(NEt2)NHtBu}{CH2S(O)Me2}]ClO4 (5), or [Au{C(NEt2)NHtBu}(NMe3)]ClO4 (6). The crystal structures of 1, 3, and 5 have been determined.