α,α,α-三联吡啶 、 iron(II) bromide 以
not given 为溶剂,
以89%的产率得到[Fe(2,2':6',2''-terpyridine)Br2]
参考文献:
名称:
Catalytic Hydrosilylation of Alkenes by Iron Complexes Containing Terpyridine Derivatives as Ancillary Ligands
摘要:
Iron complexes formulated as Fe(terpy)X-2 (terpy = 2,2':6',2 ''-terpyridine derivatives; X = Cl, Br) were prepared and their catalytic activities for hydrosilylation of olefin with hydrosilane were examined. Although Fe(terpy)X-2 did not show catalytic activity, the treatment of Fe(terpy)X-2 with NaHBEt3 caused catalytic activity. The influence of substituents in terpy on the catalytic activity was examined, and it was found that some complexes with an unsymmetrically disubstituted terpy selectively produced 1-silylalkane with quite high catalytic activity. In the reaction of 1-octene with PhSiH3, the double-hydrosilylation product Ph(1-octyl)(2)SiH was selectively obtained.
CC 双键的催化异构化是必不可少的化学转化,用于提供更高价值的类似物,在化学工业中具有重要用途。尽管在该领域取得了进展,但仍然迫切需要一种通用催化解决方案,能够精确控制环状和非环状体系中的 C=C 键迁移位置,以提供二取代和三取代烯烃。在这里,我们展示了催化量的合适的地球丰富的铁基络合物、碱和硼基化合物促进有效和可控的烯烃转位。机理研究表明,这些过程可能涉及原位形成铁氢化物物种,该物种通过顺序烯烃插入/β-氢化物消除促进烯烃异构化。通过这个策略,