A Double Conformationally Restricted Dynamic Supramolecular System for the Substrate-Selective Epoxidation of Olefins-A Comparative Study on the Influence of Preorganization
作者:Emil Lindbäck、Sawsen Cherraben、Jean-Patrick Francoïa、Esmaeil Sheibani、Bartosz Lukowski、Agnieszka Proñ、Hassan Norouzi-Arasi、Kristoffer Månsson、Pawel Bujalowski、Anna Cederbalk、Thanh Huong Pham、Torbjörn Wixe、Sami Dawaigher、Kenneth Wärnmark
DOI:10.1002/cctc.201402726
日期:2015.1
A double conformationally restricted kinetically labile supramolecular catalytic system, the third generation, was designed and synthesized. We investigated the substrate selectivity of this system by performing competitive pairwise epoxidations of pyridyl‐ and phenyl‐appended olefins. We compared the obtained substrate selectivities to previous less preorganized generations of this system. Five different
设计并合成了双构象受限的动力学不稳定的超分子催化系统,第三代。我们通过吡啶和苯基附加的烯烃的竞争性成对环氧化研究了该系统的底物选择性。我们将获得的底物选择性与该系统的先前较少预组织的世代进行了比较。研究了五对不同的底物对,并且与先前较少的构象限制的世代相比,本发明的双重构象受限的系统显示出其中两个对的底物对具有更高的标准化底物选择性(吡啶基对苯基)。至于系统各组成部分,催化剂和受体部分的预组织,