Mild and Selective Cobalt‐Catalyzed Chemodivergent Transfer Hydrogenation of Nitriles
作者:Zhihui Shao、Shaomin Fu、Mufeng Wei、Shaolin Zhou、Qiang Liu
DOI:10.1002/anie.201608345
日期:2016.11.14
Herein, we describe a selective cobalt‐catalyzed chemodivergent transferhydrogenation of nitriles to synthesize primary, secondary, and tertiary amines. The solvent effect plays a key role for the selectivity control. The general applicability of this procedure was highlighted by the synthesis of more than 70 amine products bearing various functional groups in high chemoselectivity. Moreover, this
Process for Preparing Optically Active Diphosphanes
申请人:Jaekel Christoph
公开号:US20080242893A1
公开(公告)日:2008-10-02
The present invention relates to a process for preparing optically active bisphosphinylalkanes from the correspondingly substituted, racemic 1,2-diols. The optically active bisphosphinylalkanes which can be obtained in this way are suitable as ligands for preparing chiral transition metal catalysts.
COMPOUNDS WHICH HAVE A PROTECTIVE ACTIVITY WITH RESPECT TO THE ACTION OF TOXINS AND OF VIRUSES WITH AN INTRACELLULAR MODE OF ACTION
申请人:Commissariat A L'Energie Atomique Et Aux Energies Alternatives
公开号:US20160083355A1
公开(公告)日:2016-03-24
The subject matter of the present invention is novel families of compounds which are aromatic amine, imine, aminoadamantane and benzodiazepine derivatives, medicaments comprising same and the use thereof as inhibitors of the toxic effects of toxins with intracellular activity, such as, for example, ricin, and of viruses that use the internalization pathway for infecting cells.
directional transfer of charge carriers are impracticable for extracting bulk excitons. To this issue, we here propose that the extraction of bulk exciton could be effectively implemented by surface modification. By taking confined layered bismuth oxycarbonate (Bi2O2CO3) as an example, we highlight that the incorporation of iodine atoms on the surface could modify the micro-region electronic structure and
从本体到表面提取光生物质是获得高效半导体光催化的重要过程。然而,与带电光生载流子相比,中性激子对电场的响应可以忽略不计。因此,涉及用于促进电荷载流子定向转移的带对齐构造的传统策略对于提取体激子是不切实际的。针对这个问题,我们在这里提出通过表面改性可以有效地实现体激子的提取。通过取密闭层状碳酸铋(Bi 2 O 2 CO 3) 作为一个例子,我们强调碘原子在表面的结合可以改变微区电子结构,从而导致表面激子态的能量降低。受益于本体激子态和表面激子态之间的能量梯度,碘修饰的 Bi 2 O 2 CO 3具有高效的本体激子提取,因此在触发1 O 2介导的选择性氧化反应方面表现出提升的性能。这项工作展示了表面改性在调节半导体基光催化剂的激子过程中的积极作用。
RAPID REDUCTION OF NITRILES TO PRIMARY AMINES WITH NICKEL BORIDE AT AMBIENT TEMPERATURE[1]
作者:Jitender M. Khurana、Gagan Kukreja
DOI:10.1081/scc-120003619
日期:2002.1
ABSTRACT Reduction of a variety of nitriles to their corresponding primaryamines can be achieved with nickel boride generated in situ in dry ethanol at ambient temperature. The reductions are very rapid and chemoselective.