Establishing the role of triflate anions in H2 activation by a cationic triorganotin(IV) lewis acid
File(s)
Author(s)
Type
Journal Article
Abstract
Cationic Lewis acids (LAs) are gaining interest as targets for frustrated Lewis pair (FLP)-mediated catalysis. Unlike neutral boranes, which are the most prevalent LAs for FLP hydrogenations, the Lewis acidity of cations can be tuned through modulation of the counteranion; however, detailed studies on such anion effects are currently lacking in the literature. Herein, we present experimental and computational studies which probe the mechanism of H2 activation using iPr3SnOTf (1-OTf) in conjunction with a coordinating (quinuclidine; qui) and noncoordinating (2,4,6-collidine; col) base and compare its reactivity with {iPr3Sn·base}{Al[OC(CF3)3]4} (base = qui/col) systems which lack a coordinating anion to investigate the active species responsible for H2 activation and hence resolve any mechanistic roles for OTf– in the iPr3SnOTf-mediated pathway.
Date Issued
2020-06-08
Online Publication Date
2021-06-08T23:01:42Z
Date Acceptance
2020-06-08
ISSN
2155-5435
Publisher
American Chemical Society (ACS)
Start Page
7573
End Page
7583
Journal / Book Title
ACS Catalysis
Volume
10
Copyright Statement
© 2020 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Catalysis, after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acscatal.0c02023
Identifier
https://pubs.acs.org/doi/10.1021/acscatal.0c02023
Subjects
0302 Inorganic Chemistry
0305 Organic Chemistry
0904 Chemical Engineering
Publication Status
Published
Date Publish Online
2020-06-26