Benign Catalysis with Iron: Unique Selectivity in Catalytic Isomerization Reactions of Olefins
作者:Reiko Jennerjahn、Ralf Jackstell、Irene Piras、Robert Franke、Haijun Jiao、Matthias Bauer、Matthias Beller
DOI:10.1002/cssc.201100404
日期:2012.4
of noble metal catalysts in homogeneous catalysis has been well established. Due to their price and limited availability, there is growing interest in the substitution of such precious metal complexes with readily available and bio‐relevant catalysts. In particular, iron is a “rising star” in catalysis. Herein, we present a general and selective iron‐catalyzed monoisomerization of olefins, which allows
贵金属催化剂在均相催化中的使用已得到广泛确立。由于它们的价格和有限的可获得性,人们越来越有兴趣用易于获得的和生物相关的催化剂来代替这种贵金属络合物。特别是,铁是催化作用中的“后起之秀”。在此,我们介绍了烯烃的一般性和选择性铁催化的单异构化,它可以选择性地生成2-烯烃。通常,常见的金属络合物给出各种内烯烃的混合物。大规模末端烯烃和官能化末端烯烃都可以在温和条件下以高至优异的收率提供相应的产物。通过原位NMR研究阐明了拟议的反应机理,并得到DFT计算和扩展的X射线吸收精细结构(EXAFS)测量的支持。