受阻路易斯酸碱对中的分子内协同作用。

Intramolecular cooperativity in frustrated Lewis pairs.

作者信息

Körte Leif A, Blomeyer Sebastian, Heidemeyer Shari, Mix Andreas, Neumann Beate, Mitzel Norbert W

机构信息

Lehrstuhl für Anorganische Chemie und Strukturchemie and Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany.

出版信息

Chem Commun (Camb). 2016 Aug 2;52(64):9949-52. doi: 10.1039/c6cc05228b.

DOI:10.1039/c6cc05228b

PMID:27440500

Abstract

The doubly Lewis-acid functionalised aniline PhN[(CH2)3B(C6F5)2]2 features two competing boron functions in fast exchange for binding to the central Lewis base. It shows catalytic activity typical for FLPs in H/D-scrambling and catalytic hydrogenation experiments. By contrast, the singly acid-functionalised PhMeN(CH2)3B(C6F5)2 reveals a dramatically smaller catalytic activity in analogous experiments.

摘要

双路易斯酸官能化的苯胺PhN[(CH2)3B(C6F5)2]2具有两个相互竞争的硼官能团，它们能快速交换以与中心路易斯碱结合。在H/D重排和催化氢化实验中，它表现出典型的FLP催化活性。相比之下，单酸官能化的PhMeN(CH2)3B(C6F5)2在类似实验中显示出显著更小的催化活性。