Accessing Frustrated Lewis Pair Chemistry from a Spectroscopically Stable and Classical Lewis Acid-Base Adduct

被引：82

作者：

Johnstone, Timothy C. ^{[1
]}

Wee, Gabriel N. J. H. ^{[1
]}

Stephan, Douglas W. ^{[1
]}

机构：

[1] Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M5S3H6, Canada

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 20期

基金：

加拿大自然科学与工程研究理事会;

关键词：

borane; frustrated Lewis pairs; NMR spectroscopy; proazaphosphatrane; X-ray diffraction; ACTIVATION; HYDROGENATION; REACTIVITY; CAPTURE; CO2;

D O I：

10.1002/anie.201802385

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

B(C6F5)(3) and P(MeNCH2CH2)(3)N form a classical Lewis adduct, (C6F5)(3)BP(MeNCH2CH2)(3)N. Although (C6F5) 3BP(MeNCH2CH2)(3)N does not exhibit spectroscopic evidence of dissociation into its constituent acid and base, products of frustrated Lewis pair (FLP) addition reactions are seen with PhNCO, PhCH2N3, PhNSO, and CO2. Computational studies show that thermal access to the dissociated acid and base permits FLP reactivity to proceed. These results demonstrate that FLP reactivity extends across the entire continuum of equilibria governing Lewis acid-base adducts.

引用

页码：5881 / 5884

页数：4

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