A series of cyclometallated gold(III) complexes 21–27 of general formula [Au(dppta)(azdtc)Cl] (dppta = N,N-diisopropyl-P,P-diphenylphosphinothioic amide-κ²C,S; azdtc = azol(in)ium-2-dithiocarboxylate-κ¹S) were prepared and characterized by spectroscopic and diffractometric techniques. Treatment of [Au(dppta)(azdtc)Cl] complexes with methanol led to their quantitative transformation into a novel family of (C^S, S^S)-cyclometallated gold(III) complexes of general formula [Au(dppta)(azmtd)] (azmdt = azol(in)ium-2-(methoxy)methanedithiol-κ²S,S) 28–34. All the [Au(dppta)(azdtc)Cl] complexes 21–27 catalyzed the alkylation of indoles, whereas [Au(dppta)(azmtd)] complexes 28–34 were inactive. Among the synthesized derivatives, complex 22 displayed the highest catalytic activity, leading to a series of functionalized indoles in excellent yields.

中文翻译：

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二硫代羧酸唑(in)鎓配体与Au(III)的配位：新型环金属化Au(III)配合物家族的意外形成、DFT计算和催化研究

一系列环金属化金( III )配合物21–27，通式为 [Au(dppta)(azdtc)Cl] (dppta = N , N -二异丙基- P , P -二苯基硫代膦酰胺-κ ² C,S; azdtc = 唑(in)ium-2-二硫代羧酸盐-κ ¹ S）通过光谱和衍射技术进行制备和表征。用甲醇处理 [Au(dppta)(azdtc)Cl] 配合物，使其定量转化为通式为[ Au(dppta)( azmtd)] (azmdt = azol(in)ium-2-(甲氧基)甲烷二硫醇-κ ² S,S) 28–34。所有[Au(dppta)(azdtc)Cl]配合物21-27都催化吲哚的烷基化，而[Au(dppta)(azmtd)]配合物28-34没有活性。在合成的衍生物中，配合物22表现出最高的催化活性，以优异的产率产生了一系列功能化吲哚。