Synthesis and crystal structure of an iridium complex containing the novel electron-poor hybrid monoanionic ligand Ph2PCF2PO2(OiPr)
Synthesis and crystal structure of an iridium complex containing the novel electron-poor hybrid monoanionic ligand Ph2PCF2PO2(OiPr)
复制标题
DOI：
10.1016/j.poly.2022.116162
复制
发表时间：
2022-12
期刊：
影响因子：
2.6
通讯作者：
D. Sattler;J. Bailey;D. Grotjahn
中科院分区：
文献类型：
--
作者：
D. Sattler;J. Bailey;D. Grotjahn
膦已长期用于催化，并且具有几乎任何取代基的各种配体是可用的。然而，这些膦中的绝大多数相对富含电子。双膦的单氧化物已显示形成催化烯烃聚合和加氢甲酰化的络合物。然而，这种配体的贫电子版本尚未被探索。本文合成了一个含膦和膦酸酯基团的杂化配体Ph_2PCF_2PO_2（OiPr），并与缺电子的CF_2基团相连。合成并表征了该配体的Cp*Ir配合物。
Phosphines have long been used in catalysis, and a wide variety of ligands with almost any substituent are available. However, the vast majority of these phosphines have been relatively electron-rich. Monooxides of bisphosphines have been shown to form complexes that catalyze alkene polymerizations and hydroformylations. However, electron-poor versions of such ligands have not yet been explored. In this report, the hybrid ligand Ph2PCF2PO2(OiPr) with both phosphine and phosphonate ester moieties, linked with an electron deficient CF2group was synthesized. A Cp*Ir complex of the ligand was synthesized and characterized.