期刊
INORGANICA CHIMICA ACTA
卷 502, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2019.119318
关键词
Iron complexes; Homogeneous catalysis; Polydentate phosphines; Oxidation; Alcohols
资金
- University of Trieste (FRA 2016)
The iron(II) compounds [Fe(triphos)(CH3CN)(3)](OTf)(2) (triphos = 1,1,1-tris(diphenylphosphinomethyDethane; OTf = CF3SO3) (1), [Fe(dppm)(2)(CH3CN)(2)](OTf)(2) (dppm = bis(diphenylphosphino)methane) (2), [Fe(dppe)(2)(CH3CN)(2)](OTf)(2) (dppe = 1,2-bis(diphenylphosphino)ethane) (3), [Fe(dppp)(CH3CN)(4)](OTf)(2) (dppp = 1,3-bis(diphenylphosphino)propane) (4) and [Fe(PSP)(CH3CN)(3)](OTf)(2) (PSP = bis(2-(diphenylphosphino)ethyl)sulfide) (5) were synthesized and characterized by NMR and (2, 3 and 4) also by X-ray crystallography. Such complexes catalyzed the selective oxidation of primary and secondary alcohols to the corresponding aldehydes and ketones. The catalytic reactions were performed in acetonitrile in mild experimental conditions (r.t. or 50 degrees C) using tert-butylhydroperoxide (TBHP) as oxidizing agent. By following the reaction of complex 4 with the oxidant by UV-visible spectroscopy, it was possible to evidence formation of the corresponding iron-peroxide intermediate. Comparison of ESI-MS spectra acquired on a solution of 1 or 4 before and after TBHP addition suggests ligand oxidation to iron-phosphine oxide complexes.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据