Base-induced Reversible H Addition to a Single Sn(ii) Centre

Overview

Journal Chem Sci

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2019 Jan 11

PMID 30627391

Citations 4

Authors

Roland C Turnell-Ritson

Joshua S Sapsford

Robert T Cooper

Stella S Lee

Tamas Foldes

Patricia A Hunt

Imre Papai

Andrew E Ashley

Affiliations

Soon will be listed here.

Abstract

A range of amines catalyse the oxidative addition (OA) of H to [(MeSi)CH]Sn (), forming [(MeSi)CH]SnH (). Experimental and computational studies point to 'frustrated Lewis pair' mechanisms in which acts as a Lewis acid and involve unusual late transition states; this is supported by the observation of a kinetic isotope effect for EtN. When DBU is used the energetics of H activation are altered, allowing an equilibrium between , and adduct [·DBU] to be established, thus demonstrating reversible oxidative addition/reductive elimination (RE) of H at a single main group centre.

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