Mandal Dipendu, Chen Ting, Qu Zheng-Wang, Grimme Stefan, Stephan Douglas W
Institute of Drug Discovery Technology, Ningbo University, 315211, Zhejiang, P. R. China.
Mulliken Center for Theoretical Chemistry, Clausius Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany.
Chemistry. 2022 Sep 22;28(53):e202201701. doi: 10.1002/chem.202201701. Epub 2022 Jul 27.
Reactions of PAr /B(C F ) (Ar=o-Tol, Mes, Ph) FLPs with diethyl azodicarboxylate (DEAD) afford the corresponding FLP addition products 1-3 in which P-N and B-O linkages are formed. In contrast, the reaction of BPh , PPh and DEAD gave product 4 where P-N and N-B linkages were confirmed. In all cases, other binding modes were computed to be both higher in energy and readily distinguishable by P and B NMR parameters. These data illustrate the influence of steric demands and electronic structures on the nature of the products of FLP reactions with DEAD.
PAr/B(CF)(Ar = 邻甲苯基、均三甲苯基、苯基)氟代路易斯酸碱对(FLP)与偶氮二甲酸二乙酯(DEAD)反应生成相应的FLP加成产物1 - 3,其中形成了P - N和B - O键。相比之下,BPh、PPh与DEAD的反应生成了产物4,其中P - N和N - B键得到确认。在所有情况下,计算得出其他键合模式的能量更高,并且可以通过P和B的核磁共振参数轻松区分。这些数据说明了空间需求和电子结构对FLP与DEAD反应产物性质的影响。