菲咯啉甲酰胺化合物有望用于镧系元素的系列内分离。本文研究了菲咯啉甲酰胺的结构修饰对整个镧系元素萃取的影响。该研究包括理论计算、14 种稳定镧系元素的提取实验以及 Nd 和 Dy 配合物的扩展 X 射线吸收精细结构 (EXAFS) 分析。三齿单甲酰胺和四齿二甲酰胺在系列萃取中表现出不同的趋势,尽管两者都优先萃取轻镧系元素。酰胺取代基虽然不直接与金属离子配位,但也被发现会影响分布比,这很可能是由于分子内部极性的改变。后一种效果,
Anti-Markovnikov addition of anilines to aliphatic terminalalkynes proceeded using an 8-quinolinolato rhodium/phosphine catalyst system. The use of a strong organic base, 1,1,3,3,–tetramethylguanidine, in the catalyst system enabled the formation of the aldimine products. Substrates with various functional groups including polar groups such as a phenolic hydroxy group are applicable to the hydroamination
[EN] CATALYST LIGANDS USEFUL FOR CROSS-COUPLING REACTIONS<br/>[FR] LIGANDS CATALYTIQUES UTILISES DANS DES REACTION DE COUPLAGE CROISE
申请人:SYMYX TECHNOLOGIES INC
公开号:WO2000008032A1
公开(公告)日:2000-02-17
The present invention discloses new organic compounds (e.g., ligands), their metal complexes and compositions using those compounds. The invention also relates to the field of catalysis. In particular, this invention relates to new compounds which when combined with suitable metals or metal precursor compounds provide useful catalysts for various bond-forming reactions, including Suzuki cross-coupling or aryl amination reactions. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.