Wu Di, Li Yongxin, Ganguly Rakesh, Kinjo Rei
Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.
Chem Commun (Camb). 2017 Nov 28;53(95):12734-12737. doi: 10.1039/c7cc07616a.
The addition of phenyl lithium (PhLi) to an aromatic 1,3,2,5-diazadiborinine (1) afforded isolable ionic species 2, which can be deemed as an inorganic analogue of a Janovsky complex. X-ray diffraction analysis and DFT studies of 2 indicate the delocalization of π-type electrons mainly over the C-B-C unit in the central BCN six-membered ring. The reactions of 2 with methyl iodide (MeI) and chloro(tricyclohexylphosphine)gold(i) (CyPAuCl) gave 3 bearing a B-Me bond and 4 featuring a B-Au bond, respectively, demonstrating the nucleophilic properties of the tricoordinate boron center in 2.
向芳香族1,3,2,5-二氮杂二硼烷（1）中加入苯基锂（PhLi）可得到可分离的离子物种2，其可被视为扬诺夫斯基配合物的无机类似物。对2进行的X射线衍射分析和密度泛函理论研究表明，π型电子主要在中心BCN六元环中的C-B-C单元上离域。2与甲基碘（MeI）和氯（三环己基膦）金（Ⅰ）（CyPAuCl）的反应分别得到带有B-Me键的3和具有B-Au键的4，证明了2中三配位硼中心的亲核性质。
