Tris(5,6,7,8-tetrafluoronaphthalen-2-yl)borane, a Partially Fluorinated Boron Lewis Acid with Fluorination Distal to the Boron Atom
作者:Jens Mohr、Mustafa Durmaz、Elisabeth Irran、Martin Oestreich
DOI:10.1021/om500128a
日期:2014.3.10
Typical congeners of the boron Lewis acid tris(pentafluorophenyl)borane, B(C6F5)3, are fluorinated at the aryl groups directly attached to the boron atom. The chemistry of related electron-deficient boranes with fluorination distal to the Lewis acidic center is largely unexplored. The preparation and characterization of tris(5,6,7,8-tetrafluoronaphthalen-2-yl)borane are reported. It serves as a model
硼的路易斯酸三(五氟苯基)硼烷的典型的同源物,B(C 6 ˚F 5)3,在直接连接到硼原子上的芳基氟化。在路易斯酸中心远端发生氟化反应的相关电子不足的硼烷的化学性质尚未得到充分的研究。报道了三(5,6,7,8-四氟萘-2-基)硼烷的制备和表征。它作为一个模型系统,在C-1和C-3的萘-2-基单元提供了用于进一步取代位点。其路易斯酸性的古特曼-贝克特分析显示,尽管远程氟化,它是作为路易斯酸性如B(C 6 ˚F 5)3。新的路易斯酸在C═O和C═N还原以及涉及Si-H键活化的脱氢Si-O偶联中表现同样出色。与水和膦氧化物加合物的晶体学表征。