Bamford Karlee L, Qu Zheng-Wang, Stephan Douglas W
Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada.
Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany.
Angew Chem Int Ed Engl. 2021 Apr 6;60(15):8532-8536. doi: 10.1002/anie.202101054. Epub 2021 Mar 4.
Reactions of the diborane(4) B (o-tolyl) and monohydridoboranes are shown to give B(o-tolyl) and (o-tolyl)BR (R =(C H ) 3, cat 4, pin 5, (C F ) 6) as the major products. The corresponding reaction with BH -sources gives complex mixtures, resulting from hydride/aryl exchange, dimerization and borane elimination. This led to the isolation of the first tetra-substituted pentaborane(9) HB[B(o-tolyl)(μ-H)] 8. The reaction pathways are probed experimentally and by computations.
二硼烷（4）B（邻甲苯基）与一氢化硼的反应表明，主要产物为B（邻甲苯基）和（邻甲苯基）BR（R =（CH）3、cat 4、pin 5、（CF）6）。与BH -源的相应反应会产生复杂混合物，这是由氢化物/芳基交换、二聚化和硼烷消除导致的。这使得首个四取代戊硼烷（9）HB[B（邻甲苯基）（μ-H）]8得以分离出来。通过实验和计算对反应途径进行了探究。
