Dynamic behaviour of monohaptoallylpalladium species: internal coordination as a driving force in allylic alkylation chemistry

作者:Xie Lan Gui; Bagutski Viktor; Audisio Davide; Wolf Larry M; Schmidts Volker; Hofmann Kathrin; Wirtz Cornelia; Thiel Walter; Thiele Christina M*; Maulide Nuno
来源:Chemical Science, 2015, 6(10): 5734-5739.
DOI:10.1039/c5sc01867f

摘要

Contemporary catalytic procedures involving alkylpalladium(II) have enriched the arsenal of synthetic organic chemistry. Those transformations usually rely on internal coordination through "directing groups", carefully designed to maximize catalytic efficiency and regioselectivity. Herein, we report structural and reactivity studies of a series of internally coordinated monohaptoallylpalladium complexes. These species enable the direct spectroscopic observation and theoretical study of pi-sigma-pi interconversion processes. They further display unusual dynamic behavior which should be of direct relevance to chemistries beyond catalytic allylic alkylation.

  • 出版日期2015