Electrochemical nickel-induced fluoroalkylation: synthetic, structural and mechanistic study
作者:Dmitry Mikhaylov、Tatyana Gryaznova、Yulia Dudkina、Mikhail Khrizanphorov、Shamil Latypov、Olga Kataeva、David A. Vicic、Oleg G. Sinyashin、Yulia Budnikova
DOI:10.1039/c1dt11299f
日期:——
Electrocatalytic generation of nickel catalysts in low oxidation states by reduction of nickel complexes with various ligands (2,2′-bipyridine, 2,2′:6′,2′′-terpyridine, (S,S)-2,6-bis(4-phenyl-2-oxazolin-2-yl)-pyridine) in the presence of olefinic substrates and fluoroalkyl halides leads to new organic products derived from addition-dimerization processes. Due to the presence of two stereocenters in
通过还原具有各种配体的镍络合物,可在低氧化态下电催化生成镍催化剂(2,2'-联吡啶,2,2':6',2''-吡啶 (S,S)-2,6-双(4-苯基-2-恶唑啉-2-基)-吡啶)在烯烃底物和氟代烷基卤化物的存在下导致从加成-二聚过程衍生出新的有机产物。由于二聚产物中存在两个立体中心,因此通过多种分析技术(包括多维NMR方法和X射线单晶衍射)对两个非对映异构体进行了表征。通过包含氢原子供体防止了二聚体的形成氢化三丁基锡。选定的镍配合物与氟代烷基卤化物的循环伏安法研究表明,Ni(I)L是催化剂的活性形式。