Tripodal S-Ligand Complexes of Copper(I) as Catalysts for Alkene Aziridination, Sulfide Sulfimidation, and C–H Amination
作者:Tsz Lung Lam、Ken Chi-Hang Tso、Bei Cao、Chen Yang、Daqing Chen、Xiao-Yong Chang、Jie-Sheng Huang、Chi-Ming Che
DOI:10.1021/acs.inorgchem.7b00226
日期:2017.4.17
Copper(I) complexes of tris(thioimidazolyl)borates (R′TmR), including [Cu(TmPh)(PR″3)] (R″ = Ph, Cu1; Cy, Cu2) and [Cu(R′TmPh)(PR″3)]+ (R′ = N-methylimidazole; R″ = Ph, Cy) were prepared and characterized by spectroscopic methods. The X-ray crystal structures of Cu1 and Cu2 feature a tripodal TmPh ligand coordinated in κ3-S,S,S mode. Using Cu2 as a catalyst (loading: 1 mol %), the aziridination of styrenes
三(硫代咪唑基)硼酸盐(R'Tm R)的铜(I)配合物,包括[Cu(Tm Ph)(PR” 3)](R” = Ph,Cu1 ; Cy,Cu2)和[Cu(R'Tm制备Ph)(PR″ 3)] +(R′=N-甲基咪唑; R″ = Ph,Cy)并通过光谱法表征。的X射线晶体结构CU1和铜特征的三脚架的Tm博士配体配位在κ 3 -S,S,S模式。使用Cu2作为催化剂(负载量:1 mol%),苯乙烯在室温下分别进行3h和0.5h的叠氮化和硫代苯甲醚与PhI═NTs的亚磺酰亚胺化,均可以使产物收率达到99%。Cu2还催化叠氮化乙烯基的芳基CH键的分子内胺化,收率高达98%。进行DFT计算以深入了解Cu2催化的叠氮化反应的机理。