Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/136700
Title: B-H bond activation by an amidinate-stabilized amidosilylene : non-innocent amidinate ligand
Authors: Khoo, Sabrina
Shan, Yu-Liang
Yang, Ming-Chung
Li, Yongxin
Su, Ming-Der
So, Cheuk-Wai
Keywords: Science::Chemistry
Science::Chemistry::Inorganic chemistry
Issue Date: 2018
Source: Khoo, S., Shan, Y.-L., Yang, M.-C., Li, Y., Su, M.-D., & So, C.-W. (2018). B-H bond activation by an amidinate-stabilized amidosilylene : non-innocent amidinate ligand. Inorganic Chemistry, 57(10), 5879-5887. doi:10.1021/acs.inorgchem.8b00321
Journal: Inorganic Chemistry
Abstract: The activation of B-H and B-Cl bonds in boranes by base-stabilized low-valent silicon compounds is described. The reaction of the amidinato amidosilylene-borane adduct [L{Ar(Me3Si)N}SiBH3] [1; L = PhC(N tBu)2, and Ar = 2,6- iPr2C6H3] with MeOTf in toluene at room temperature formed [L{Ar(Me3Si)N}SiBH2OTf] (2). [LSiN(SiMe3)Ar] in compound 2 then underwent a B-H bond activation with BH2OTf in refluxing toluene to afford the B-H bond activation product [LB(H)Si(H)(OTf){N(SiMe3)Ar}] (3). On the other hand, when compound 2 was reacted with 4-dimethylaminopyridine in refluxing toluene, another B-H bond activation product [(μ-κ1:κ1-L)B(H)(DMAP)Si(H){N(Ar)SiMe3}]OTf (4) was afforded. Mechanistic studies show that "(μ-κ1:κ1-L)B(H)(OTf)Si(H){N(Ar)SiMe3}" (2A) is the key intermediate in the reactions mentioned above. The formation of 2A is further evidenced by the activation of the B-Cl bond in PhBCl2 by the amidinato silicon(I) dimer [LSi:]2 to form the B-Cl bond activation product [(μ-κ1:κ1-L)B(Cl)(Ph)Si(Cl)]2 (6). Compounds 2-4 and 6 were characterized by nuclear magnetic resonance spectroscopy and X-ray crystallography.
URI: https://hdl.handle.net/10356/136700
ISSN: 0020-1669
DOI: 10.1021/acs.inorgchem.8b00321
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Inorganic Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.inorgchem.8b00321
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

SCOPUSTM   
Citations 20

18
Updated on Jan 25, 2023

Web of ScienceTM
Citations 20

17
Updated on Jan 23, 2023

Page view(s)

205
Updated on Jan 26, 2023

Download(s) 50

69
Updated on Jan 26, 2023

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.