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Access to Unsymmetrically Substituted Diaryl Gold N-Acyclic Carbene (NAC) and N-Heterocyclic Carbene (NHC) Complexes via the Isonitrile Route
Advanced Synthesis & Catalysis ( IF 5.4 ) Pub Date : 2021-09-23 , DOI: 10.1002/adsc.202101000
Vanessa Vethacke 1 , Vanessa Claus 2 , Martin C. Dietl 2 , Daniel Ehjeij 3 , Arne Meister 4 , Jonas F. Huber 2 , Leon K. Paschai Darian 5 , Matthias Rudolph 2 , Frank Rominger 6 , A. Stephen K. Hashmi 7
Affiliation  

A variety of unsymmetric diaryl gold N-acyclic carbene (NAC) complexes was synthesized via the isonitrile route by three different methods: (a) solvent free in a melt, (b) mechanochemically and (c) in THF at room temperature. The latter method can also be used to synthesize unsaturated gold NHC complexes. These methods overall offer access to a broad array of new complexes and remove one of the previous limitations of the isonitrile route to NAC and NHC complexes of gold, namely the inability to react with the less nucleophilic aromatic amines. The new complexes also proved to be successful as pre-catalysts in the gold-catalyzed phenol synthesis.

中文翻译:

通过异腈路线获得不对称取代的二芳基金 N-无环卡宾 (NAC) 和 N-杂环卡宾 (NHC) 配合物

各种不对称二芳基金 N-无环卡宾( NAC) 配合物通过异腈路线通过三种不同的方法合成:(a) 熔体中无溶剂,(b) 机械化学和 (c) 在室温下在 THF 中。后一种方法也可用于合成不饱和金 NHC 配合物。这些方法总体上提供了获得广泛的新配合物的途径,并消除了以前异腈路线对 NAC 和 NHC 金配合物的限制之一,即不能与亲核性较低的芳香胺反应。新的配合物也被证明在金催化苯酚合成中作为预催化剂是成功的。
更新日期:2021-09-23
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