一个终端结合的甲基基
Takashi Kurogi1, Patrick J Carroll1, Daniel J Mindiola1
1Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States.
Journal of the American Chemical Society
|March 16, 2016
概括
这项研究报告了罕见的甲基和甲基复合物的合成. 这些复合物经过反应形成独特的化,进化有机金属化学.
科学领域:
- 有机金属化学
- 复合物
- 碳和碳化物化学
背景情况:
- 在催化和材料科学中,含有和连体的复合物至关重要.
- 低坐标物种的合成和表征,如甲基和甲基,仍然具有挑战性.
- 了解这些物种的反应性是开发新合成方法的关键.
研究的目的:
- 合成和描述新的甲基和甲基复合物.
- 研究这些复合物的反应性,包括它们转化为化.
- 阐明这些独特的有机金属化合物的结构特征.
主要方法:
- 一个二甲基前体的合成, (PNP) Nb ((CH3) 2 ((OAr).
- 氧化形成一个甲基三复合物, (PNP) Nb ((CH3) 2 ((OAr)) ((OTf).
- 光解和化反应产生甲基和甲基复合物.
- 合成化的交叉转移反应.
- 固态结构分析 (X射线衍射)
主要成果:
- 通过光解成功合成一种罕见的甲基复合物 (PNP) NbCH2OArOTf.
- 通过添加或基处理形成单核甲基复合物 (PNP) NbCHOAr.
- 具有短Nb-C键长度的末端甲基和甲基部分的结构确认.
- 通过甲基化物交叉转化合成中性单核化物 (PNP) NbN(OAr.
结论:
- 这项工作扩展了已知的低坐标碳素和碳化物复合物的化学结构.
- 甲基二烯容易转化为化物复合物,为合成过渡金属化物开辟了新的途径.
- 描述的复合物为-碳和-多重键的结合和反应提供了宝贵的见解.
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