合成,结构和 (乙氨基) 三-lambda(5) -bismuthanes的反应:第一个对 (乙氨基) pnictorane系列的比较研究
1Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan. matano@kuchem.kyoto-u.ac.jp
Journal of the American Chemical Society
|November 1, 2001
概括
这项研究报告了 (acylimino) triaryl-lambda(5) -bismuthanes的合成和反应性. 这些化合物表现出独特的特性和反应,包括氧化和分解,突出显示了 bismuthonio 组的脱离能力.
科学领域:
- 有机金属化学 有机金属化学
- 主群 化学 化学
- 普尼克托基因的化学成分
背景情况:
- 新型高价值化合物的合成和表征对于理解结合和反应性至关重要.
- 普尼科坦,特别是那些涉及比斯木特等更重的普尼科坦,具有独特的电子和结构性质.
研究的目的:
- 为了合成和表征 (乙胺) 三烯-lambda(5) -bismuthanes.
- 为了比较研究 (乙氨基) 聚烯的结构和活性在不同的聚烯原体 (P,As,Sb,Bi).
- 为了研究Bi=N键的稳定性和这些 bismuthanes的反应途径.
主要方法:
- 从三二二化物和胺中合成 (乙氨基) 三-lambda (((5) - bismuthanes.
- 光谱分析 (IR,13C,15N NMR) 和X射线晶体学用于结构确定.
- 开始分子轨道计算以了解电子结构.
- 活性研究包括氧化,热分解和化物部分转移.
主要成果:
- 获得了高产量 (77-96%) 的 (乙氨基) 三烯-lambda(5)-bismuthanes.
- Bi=N 键表现出高度两极化的单键性质,随着重量增加的 pnictogens 增加.
- 热分解产生的凝或anilines,而氧化和化物转移反应被观察到.
- 反应性研究表明,比斯穆尼奥组是一个很好的离开组.
结论:
- 整位替代的基连接物和取电子的N替代物稳定了Bi=N键.
- M=N 键特性在 pnictogen 系列中演变,较重元素的单键特性增加.
- (阿西利米诺) 特里亚利-兰巴达(5) - - 双氨酸具有多种反应性,展示了它们在合成化学中的潜力.
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