Synthesis of silyl iron hydride via Si-H activation and its dual catalytic application in the hydrosilylation of carbonyl compounds and dehydration of benzamides

The hydrido silyl iron complex (o-Ph PC H SiMe )Fe(PMe ) H (2) was obtained via the activation of the Si-H bond of the bidentate silyl ligand o-Ph P(C H )SiMe H (1) by Fe(PMe ) . 2 showed good to excellent catalytic activity in both the reduction of aldehydes/ketones and the dehydration of benzamide...

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Published in:Dalton transactions : an international journal of inorganic chemistry 2018-03, Vol.47 (12), p.4352-4359
Main Authors: Ren, Shishuai, Xie, Shangqing, Zheng, Tingting, Wang, Yangyang, Xu, Shilu, Xue, Benjing, Li, Xiaoyan, Sun, Hongjian, Fuhr, Olaf, Fenske, Dieter
Format: Article
Language:English
Subjects:
Activation
Alcohols
Aldehydes
Benzamide
Carbonyl compounds
Carbonyls
Catalysis
Catalytic activity
Dehydration
Hydrogen bonds
Hydrosilylation
Iron
Ketones
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Summary:The hydrido silyl iron complex (o-Ph PC H SiMe )Fe(PMe ) H (2) was obtained via the activation of the Si-H bond of the bidentate silyl ligand o-Ph P(C H )SiMe H (1) by Fe(PMe ) . 2 showed good to excellent catalytic activity in both the reduction of aldehydes/ketones and the dehydration of benzamide. In addition, with complex 2 as a catalyst, α,β-unsaturated carbonyls could be selectively reduced to the corresponding α,β-unsaturated alcohols. The mechanisms of the formation of 2 and the catalytic dehydration process are proposed and partly experimentally verified.
ISSN:1477-9226
1477-9234
DOI:10.1039/c8dt00289d