Tuning Activity and Selectivity during Alkyne Activation by Gold(I)/Platinum(0) Frustrated Lewis Pairs,Organometallics

当前位置： X-MOL 学术 › Organometallics › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Tuning Activity and Selectivity during Alkyne Activation by Gold(I)/Platinum(0) Frustrated Lewis Pairs
Organometallics ( IF 2.5 ) Pub Date : 2020-06-29 , DOI: 10.1021/acs.organomet.0c00330
Nereida Hidalgo ₁ , Juan José Moreno ₁ , Marina Pérez-Jiménez ₁ , Celia Maya ₁ , Joaquín López-Serrano ₁ , Jesús Campos ₁

Affiliation

Introducing transition metals into frustrated Lewis pair systems has attracted considerable attention in recent years. Here we report a selection of three metal-only frustrated systems based on Au(I)/Pt(0) combinations and their reactivity toward alkynes. We have inspected the activation of acetylene and phenylacetylene. The gold(I) fragments are stabilized by three bulky phosphines bearing terphenyl groups. We have observed that subtle modifications on the substituents of these ligands proved critical in controlling the regioselectivity of acetylene activation and the product distribution resulting from C(sp)–H cleavage of phenylacetylene. A mechanistic picture based on experimental observations and computational analysis is provided. As a result of the cooperative action of the two metals of the frustrated pairs, several uncommon heterobimetallic structures have been characterized.

中文翻译：

金 (I)/铂 (0) 受阻路易斯对在炔烃活化过程中调节活性和选择性

近年来，将过渡金属引入受阻路易斯对体系引起了人们的广泛关注。在这里，我们报告了三种基于 Au(I)/Pt(0) 组合的纯金属受挫系统及其对炔烃的反应性。我们检查了乙炔和苯乙炔的活化。金 (I) 片段由三个带有三联苯基的大分子膦稳定。我们观察到，这些配体取代基的细微修饰对于控制乙炔活化的区域选择性以及苯乙炔 C(sp)-H 裂解产生的产物分布至关重要。提供了基于实验观察和计算分析的机械图。由于受挫对的两种金属的协同作用，已经表征了几种不常见的异双金属结构。

更新日期：2020-07-13

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11