A Hybrid Benzothiazolyl-NHC Ligand with a Flexible −CH2– Linker and Its Cationic Rh(I) Complex That Catalyzes the Olefin Hydrosilylation

A C,N-bidentate hybrid benzothiazolyl-NHC ligand (L) with a flexible −CH2– linker between the two moieties is devised. Classical deprotonation of the corresponding imidazolium bromide LHBr by M2O (M = Cu, Ag) affords the [(L)­MBr] complexes 1 (M = Cu) and 2 (M = Ag), where the ligand L is monodentat...

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Bibliographic Details
Published in:Organometallics 2024-10, Vol.43 (20), p.2458-2465
Main Authors: Nath, Soumajit, Baguli, Sudip, Mukherjee, Debabrata
Format: Article
Language:English
Online Access:Get full text
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Summary:A C,N-bidentate hybrid benzothiazolyl-NHC ligand (L) with a flexible −CH2– linker between the two moieties is devised. Classical deprotonation of the corresponding imidazolium bromide LHBr by M2O (M = Cu, Ag) affords the [(L)­MBr] complexes 1 (M = Cu) and 2 (M = Ag), where the ligand L is monodentate by binding through the NHC only. A transmetalation with [Rh­(COD)2]­BF4 from both gives the cationic Rh(I) complex [(L)­Rh­(COD)]­BF4 (3), which turns out to be a decent air-stable catalyst for olefin hydrosilylation giving anti-Markovnikov addition products under ambient benchtop conditions.
ISSN:0276-7333
1520-6041
DOI:10.1021/acs.organomet.4c00005