Xing Jun-Yi, Buffet Jean-Charles, Rees Nicholas H, Nørby Peter, O'Hare Dermot
Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK.
Chem Commun (Camb). 2016 Aug 18;52(69):10478-81. doi: 10.1039/c6cc04937k.
We report the direct synthesis of a solid-phase frustrated Lewis pair (s-FLP) by combining a silica-supported Lewis acid ([triple bond, length as m-dash]SiOB(C6F5)2, s-BCF) with a Lewis base (tri-tert-butylphosphine, (t)Bu3P) to give [[triple bond, length as m-dash]SiOB(C6F5)2][(t)Bu3P]. Reaction of this s-FLP with H2 under mild conditions led to heterolytic H-H bond cleavage and the formation of [[triple bond, length as m-dash]SiOB(H)(C6F5)2][(t)Bu3PH].
我们报道了通过将二氧化硅负载的路易斯酸（[三键，键长用m破折号表示]SiOB(C6F5)2，s-BCF）与路易斯碱（三叔丁基膦，(t)Bu3P）结合，直接合成固相受阻路易斯对（s-FLP），得到[[三键，键长用m破折号表示]SiOB(C6F5)2][(t)Bu3P]。在温和条件下，该s-FLP与H2反应导致异裂H-H键断裂，并形成[[三键，键长用m破折号表示]SiOB(H)(C6F5)2][(t)Bu3PH]。
