Modular Approach toward Protic N-Heterocyclic Carbene Complexes from Tosylated Benzyl Isocyanide Metal Complexes and Imines,Organometallics

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Modular Approach toward Protic N-Heterocyclic Carbene Complexes from Tosylated Benzyl Isocyanide Metal Complexes and Imines
Organometallics ( IF 2.5 ) Pub Date : 2023-09-20 , DOI: 10.1021/acs.organomet.3c00227
Christoph Hubbert ₁ , Martin C. Dietl ₁ , David Zahner ₁ , Frank Rominger ₁ , Matthias Rudolph ₁ , A. Stephen K. Hashmi _{1,

2}

Affiliation

Tosylated benzyl isocyanide complexes of gold(I), iridium(III), ruthenium(II), and rhodium(III) precursors were prepared and converted to the corresponding protic N-heterocyclic carbene (pNHC) metal complexes by reacting with imines. This modular approach offers a straightforward strategy for synthesizing pNHC–metal complexes starting from readily available imine precursors. In contrast to the common disconnection of isonitrile-based NHC complexes, which are synthesized by the addition of amines with tethered electrophiles, this approach also gives access to pNHC complexes of other catalytically relevant metals like ruthenium, rhodium, and iridium.

中文翻译：

从甲苯磺酸苄基异氰化物金属配合物和亚胺制备质子 N-杂环卡宾配合物的模块化方法

制备了金(I)、铱(III)、钌(II)和铑(III)前体的甲苯磺酰化苄基异氰化物络合物，并通过与亚胺反应将其转化为相应的质子N-杂环卡宾(pNHC)金属络合物。这种模块化方法提供了一种从容易获得的亚胺前体开始合成 pNHC-金属配合物的简单策略。与异腈基 NHC 配合物的常见断开相比，这种配合物是通过添加带有束缚亲电子试剂的胺来合成的，这种方法还可以得到其他催化相关金属（如钌、铑和铱）的 pNHC 配合物。

更新日期：2023-09-20

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