Base-Stabilized Diborenes: Selective Generation and η2 Side-on Coordination to Silver(I)
Base-Stabilized Diborenes: Selective Generation and η2 Side-on Coordination to Silver(I)
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DOI：
10.1002/anie.201204449
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发表时间：
2012-01-01
影响因子：
16.6
通讯作者：
Vargas, Alfredo
中科院分区：
文献类型：
--
作者：
Bissinger, Philipp;Braunschweig, Holger;Vargas, Alfredo
(B)烯烃络合物：所设计的单硼烷前体的还原偶联（参见方案; Dur= 2，3，5，6-四甲基苯基）提供了方便地获得N-杂环卡宾稳定的二硼烷。从实验和理论上证明了在暗红色二硼烯中存在BB重键。与AgCl反应得到具有前所未有的烯烃样η（2）配位模式的Ag（I）物种。
(B) olefin complexes: Reductive coupling of designed monoborane precursors (see scheme; Dur= 2, 3, 5, 6-tetramethylphenyl) gives convenient access to N-heterocyclic carbene stabilized diborenes. The presence of BB multiple bonds in the dark red diborenes is shown experimentally and theoretically. Reaction with AgCl afforded a Ag (I) species with an unprecedented, olefin-like η (2) coordination mode.