作者:G. Bas Jong、Nuria Ortega、Martin Lutz、Koop Lammertsma、J. Chris Slootweg
DOI:10.1002/chem.202002367
日期:2020.12.4
In this paper, we highlight the synthesis of a variety of primary phosphine‐boranes (RPH2⋅BH3) from the corresponding dichlorophosphines, simply by using Li[BH4] as reductant and provider of the BH3 protecting group. The method offers facile access not only to alkyl‐ and arylphosphine‐boranes, but also to aminophosphine‐boranes (R2NPH2⋅BH3) that are convenient building blocks but without the protecting
在本文中,我们重点介绍了通过使用 Li[BH 4 ] 作为还原剂和 BH 3保护基的提供者,从相应的二氯膦合成各种伯膦硼烷 (RPH 2 ⋅BH 3 ) 。该方法不仅可以轻松获得烷基和芳基膦硼烷,还可以轻松获得氨基膦硼烷(R 2 NPH 2 ⋅BH 3),它们是方便的构建单元,但没有保护性的 BH 3部分,热不稳定且非常难以处理。硼烷保护的伯膦可以使用正丁基锂进行双重去质子化,得到可溶性膦二化合物 Li 2 [RP⋅BH 3 ],其中苯基衍生物 Li 2 [PhP⋅BH 3 ] 具有固态结构特征。