中氮茚基磷衍生物：三氮磷杂环戊-5-亚基→BF加合物的合成与表征
Phosphorus derivatives of mesoionic carbenes: synthesis and characterization of triazaphosphole-5-ylidene → BF adducts.
作者信息
Dettling Lea, Limberg Niklas, Küppers Raphaela, Frost Daniel, Weber Manuela, Coles Nathan T, Andrada Diego M, Müller Christian
机构信息
Freie Universität Berlin, Institute of Chemistry and Biochemistry, Fabeckstr. 34/36, Berlin 14195, Germany.
School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
出版信息
Chem Commun (Camb). 2023 Aug 22;59(68):10243-10246. doi: 10.1039/d3cc03268j.
Trimethylsilyl-substituted triazaphospholes were synthesized by a [3+2] cycloaddition reaction between organic azides and (CH)Si-CP. In an attempt to isolate their -alkylated products, the formation of BF adducts of unprecedented triazaphosphol-5-ylidenes was found. The nature of the carbon-boron bond was investigated within the DFT framework, revealing a strong donation of electrons from the carbene carbon atom to the boron atom combined with weak back-bonding.
通过有机叠氮化物与(CH)Si-C≡P之间的[3+2]环加成反应合成了三甲基硅基取代的三氮杂磷环戊二烯。在尝试分离它们的α-烷基化产物时，发现形成了前所未有的三氮杂磷环戊二烯-5-亚基的BF加合物。在密度泛函理论框架内研究了碳-硼键的性质，结果表明卡宾碳原子向硼原子有强烈的电子给予作用，并伴有微弱的反馈键作用。
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