Benzaldoxime to Benzamide Rearrangement Catalysed by Rhodium(III) Hydroxocomplexes: The Influence of Polynuclear Species | Sciact - CRIS-system of Boreskov Institute of Catalysis

Benzaldoxime to Benzamide Rearrangement Catalysed by Rhodium(III) Hydroxocomplexes: The Influence of Polynuclear Species Full article

Journal

Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875

Output data

Year: 2019, Volume: 587, Article number : 117242, Pages count : 8 DOI: 10.1016/j.apcata.2019.117242

Tags

Heterogeneous catalysts; Primary amides; rhodium(III) hydroxocomplexes

Authors

Berdyugin Semen ¹ , Volchek Victoria ¹ , Asanova Tatyana ^1,2 , Kolesov Boris ^1,2 , Gerasimov Evgeny ^2,3 , Filatov Evgeny ^1,2 , Vasilchenko Danila ^1,2 , Korenev Sergey ^1,2

Affiliations

1	Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, Russian Federation
2	Novosibirsk State University, Novosibirsk, Russian Federation
3	Boreskov Institute of Catalysis, Novosibirsk, Russian Federation

Rhodium(III) hydroxide was shown previously to possess the catalytic activity in the rearrangement reaction of primary oximes to amides. Alkaline solutions of rhodium(III) chlorocomplexes are routinely used for Rh(OH)3 preparation and allow for a diversity of rhodium hydroxocomplexes that hold a wide range of catalytic properties. In this study, two Al2O3 supported catalysts containing 1) exclusively [Rh(OH)6]3− species and 2) a mixture of rhodium hydroxocomplexes with one to four rhodium atoms ([Rh(OH)6]3–, [Rh2(μ−OH)2(OH)8]4–, [Rh3(μ−OH)3(OH)12]6–, [Rh4(μ−OH)6(OH)12]6) were prepared, characterised (XRD, Raman, EXAFS) and tested in the benzaldoxime to benzamide rearrangement. The catalyst containing polynuclear complexes possessed at least three times higher turnover frequency (TOF) and better selectivity than the [Rh(OH)6]3– based catalyst. According to the EXAFS data, the reduction of rhodium(III) took place under reaction conditions yielding small rhodium clusters (CNRh-Rh = 4), which were proposed to be the active sites of catalysts. © 2019 Elsevier B.V.

Berdyugin S. , Volchek V. , Asanova T. , Kolesov B. , Gerasimov E. , Filatov E. , Vasilchenko D. , Korenev S.
Benzaldoxime to Benzamide Rearrangement Catalysed by Rhodium(III) Hydroxocomplexes: The Influence of Polynuclear Species
Applied Catalysis A: General. 2019. V.587. 117242 :1-8. DOI: 10.1016/j.apcata.2019.117242 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Jun 12, 2019
Accepted:	Sep 8, 2019
Published online:	Sep 9, 2019
Published print:	Oct 25, 2019

Web of science:	WOS:000494893600004
Scopus:	2-s2.0-85072201658
Elibrary:	41677828
Chemical Abstracts:	2019:1783709
OpenAlex:	W2972344436

DB	Citing
Scopus	6
Web of science	6
Elibrary	7
OpenAlex	7