Université de Strasbourg, CNRS, CHIMIE UMR 7177, Laboratoire de Chimie de Coordination, 4 rue Blaise Pascal, 67081 Strasbourg, France.
Chem Soc Rev. 2017 Feb 6;46(3):632-733. doi: 10.1039/c6cs00499g.
Ligand design has met with considerable success with both categories of hybrid ligands, which are characterized by chemically different donor groups, and of N-heterocyclic carbenes (NHCs). Their spectacular development and diversity are attracting worldwide interest and offers almost unlimited diversity and potential in e.g. coordination/organometallic main group and transition metal chemistry, catalysis, medicinal chemistry and materials science. This review aims at providing a comprehensive update on a specific class of ligands that has enjoyed much attention in the past few years, at the intersection between the two categories mentioned above, that of hybrid NHC ligands in which the functionality associated with the carbene donor is of the oxygen-donor type. For each type of oxygen-donor present in such chelating (Section 1) or bridging (Section 2) hybrid ligands, we will examine the synthesis, structures and reactivity of their metal complexes and their applications, with a special focus on homogeneous catalysis (Section 3). Thus, hydrogenation, C-H bond activation, C-C, C-N, C-O bond formation, hydrolysis of silanes, oligomerization, polymerization, metathesis, hydrosilylation, C-C bond cleavage, acceptorless dehydrogenation, dehalogenation/hydrogen transfer, oxidation and reduction reactions will be successively presented in a tabular manner, to facilitate an overview and a rapid identification of the relevant publications describing which metals associated with a given oxygen functionality are most suitable. The literature coverage includes the year 2015.
配体设计在两类杂化配体中都取得了相当大的成功，这两类配体的特点是化学上不同的供体基团和氮杂环卡宾（NHCs）。它们的惊人发展和多样性引起了全世界的关注，并在配位/主族和过渡金属化学、催化、药物化学和材料科学等领域提供了几乎无限的多样性和潜力。本综述旨在提供过去几年中备受关注的一类配体的全面更新，该配体位于上述两类配体的交叉点，即杂化 NHC 配体，其中与卡宾供体相关的功能是氧供体型。对于这类螯合（第 1 节）或桥联（第 2 节）杂化配体中存在的每一种氧供体类型，我们将研究其金属配合物的合成、结构和反应性及其应用，特别关注均相催化（第 3 节）。因此，氢化、C-H 键活化、C-C、C-N、C-O 键形成、硅烷水解、齐聚、聚合、复分解、硅氢化、C-C 键断裂、无接受体脱氢、脱卤/氢转移、氧化和还原反应将以表格形式依次呈现，以方便概述和快速识别描述与给定氧功能相关的最适合的金属的相关出版物。文献综述包括 2015 年。
