| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1325835 | Journal of Organometallic Chemistry | 2013 | 9 Pages |
A series of carboxyl-functionalized imidazolium salts were synthesized. Hydrosilylation reaction of carboxyl-functionalized imidazolium salts (1b–4b, 1c–3c) exhibited higher levels of styrene conversion and higher levels of β-adduct selectivity. In particular, no ethylbenzene as hydrogenation product could be yielded at all when Rh(PPh3)3Cl/carboxyl-functionalized imidazolium inner salts (1c–3c), respectively, were used as the catalyst. The Rh(PPh3)3Cl/carboxyl-functionalized imidazolium salts catalyst system can be reused without noticeable loss of catalytic activity.
Graphical abstractA series of carboxyl-functionalized imidazolium salts were synthesized. Hydrosilylation reaction of carboxyl-functionalized imidazolium salts exhibited higher levels of β-adduct selectivity. And hydrosilylation reaction of carboxyl-functionalized imidazolium inner salts exhibited higher levels of styrene conversion. The Rh(PPh3)3Cl/carboxyl-functionalized imidazolium salts catalyst system can be reused without noticeable loss of catalytic activity.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A series of carboxyl-functionalized imidazolium salts were synthesized. ► Higher levels of styrene conversion by Rh(PPh3)3Cl/functionalized imidazolium salts. ► Higher levels of β-adduct selectivity by Rh(PPh3)3Cl/functionalized imidazolium salts. ► No ethylbenzene could be yielded by Rh(PPh3)3Cl/functionalized imidazolium salts. ► Reused without noticeable loss of catalytic activity.
