Issue 14, 2013

Synthesis and characterization of SiO2-supported ruthenium complexes containing aromatic sulfonamides: as catalysts for transfer hydrogenation of acetophenone

Abstract

3-Amino-N-aryl-benzenesulfonamides (1–3) were successfully synthesized by the reaction of m-phenylenediamine and various benzenesulfonyl chlorides. Then, a series of ruthenium complexes (4–6) were prepared from the reaction of [RuCl2(p-cymene)]2 and 1–3. Finally, SiO2-supported Ru(II) complexes (7–9) were prepared by an impregnation method. The synthesized compounds and materials were characterized by different methods such as NMR, FT-IR, TG/DTA, nitrogen adsorption–desorption (BET), SEM and EDX. Also, the solid state structures of 4–6 were determined by single-crystal X-ray diffraction. 4–9 were used as catalysts for the transfer hydrogenation of acetophenone. 4–9 showed good catalytic activity and so the effects of the different groups were also examined. For the transfer hydrogenation of acetophenone, 7–9 had similar activity to 4–6. However, the longer lifetime of 7–9 makes them more advantageous than the non-supported catalysts (4–6) in terms of catalytic cycle. Therefore, the effect of SiO2 was investigated as a catalyst and the results show that excess silicon(IV) oxide was a surprisingly active catalyst for the hydrogenation of acetophenone under these conditions.

Graphical abstract: Synthesis and characterization of SiO2-supported ruthenium complexes containing aromatic sulfonamides: as catalysts for transfer hydrogenation of acetophenone

Supplementary files

Article information

Article type
Paper
Submitted
30 Nov 2012
Accepted
14 Jan 2013
First published
17 Jan 2013

Dalton Trans., 2013,42, 4957-4969

Synthesis and characterization of SiO2-supported ruthenium complexes containing aromatic sulfonamides: as catalysts for transfer hydrogenation of acetophenone

S. Dayan, N. Ö. Kalaycıoğlu, O. Dayan, N. Özdemir, M. Dinçer and O. Büyükgüngör, Dalton Trans., 2013, 42, 4957 DOI: 10.1039/C3DT32876G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements