当前位置: X-MOL 学术ACS Omega › 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.)
Sequential Electrophilic Substitution Reactions of Tungsten-Coordinated Phosphenium Ions and Phosphine Triflates
ACS Omega ( IF 3.7 ) Pub Date : 2017-11-14 00:00:00 , DOI: 10.1021/acsomega.7b01424
Arumugam Jayaraman 1 , Shrikant Nilewar 1 , Tyler V. Jacob 1 , Brian T. Sterenberg 1
Affiliation  

Abstraction of chloride from [W(CO)5{PPhCl2}] with AgOSO2CF3 leads to the phosphine triflate complex [W(CO)5{PPhCl(OSO2CF3)}] which undergoes electrophilic substitution reactions with N,N-diethylaniline, anisole, N,N-dimethyl-p-toluidine, toluene, biphenyl, naphthalene, 2,7,9,9-tetramethyl xanthene, and allyltrimethylsilane to form the chlorophosphine complexes [W(CO)5{PPhClR}], where R = p-diethylanilinyl, p-anisyl, 2-(N,N-dimethyl-4-methylphenyl), p-tolyl, p-phenylphenyl, 1-naphthyl, 4-(2,7,9,9-tetramethylxanthyl), and allyl. Abstraction of the second chloride with AgOSO2CF3 leads, in most cases, to the respective phosphine triflates [W(CO)5{PPhR(OSO2CF3)}], which react with ferrocene to form the ferrocenyl phosphine complexes [W(CO)5{PPhR(C10H9Fe)}]. The W(CO)5 unit can be removed via photolysis in the presence of bis(diphenylphosphino)ethane to form metal-free phosphines.

中文翻译:

钨配位的磷离子和膦三氟甲磺酸盐的顺序亲电取代反应

用AgOSO 2 CF 3从[W(CO)5 {PPhCl 2 }]提取氯化物导致三氟膦膦配合物[W(CO)5 {PPhCl(OSO 2 CF 3)}]与N发生亲电取代反应,N-二乙基苯胺,苯甲醚,NN-二甲基-甲苯胺,甲苯,联苯,萘,2,7,9,9-四甲基x吨和烯丙基三甲基硅烷形成氯膦配合物[W(CO)5 {PPhClR}] ,其中R =对-二乙基苯胺基,对-茴香基,2-(NN-二甲基-4-甲基苯基),甲苯基,苯基苯基,1-萘基,4-(2,7,9,9-四甲基黄蒽基)和烯丙基。在大多数情况下,用AgOSO 2 CF 3提取第二种氯化物会导致各自的膦三氟甲酸酯[W(CO)5 {PPhR(OSO 2 CF 3)}],它们与二茂铁反应形成二茂铁膦膦配合物[W (CO)5 {PPhR(C 10 H 9 Fe)}]。W(CO)5单元可在双(二苯基膦基)乙烷存在下通过光解反应除去,形成无金属的膦。
更新日期:2017-11-14
down
wechat
bug