Hydrogenolysis of C-O bond over Re-modified Ir catalyst in alkane solvent
nnedy, CA; Macmillan, SN; Mcalduff, MJ; Marangoni, DG; Nakagawa, Y; Mori, K; Chen, K; Amada, Y; Tamura, M; Tomishige, K
| HERO ID | 4684005 |
|---|---|
| In Press | No |
| Year | 2013 |
| Title | Hydrogenolysis of C-O bond over Re-modified Ir catalyst in alkane solvent |
| Authors | nnedy, CA; Macmillan, SN; Mcalduff, MJ; Marangoni, DG; Nakagawa, Y; Mori, K; Chen, K; Amada, Y; Tamura, M; Tomishige, K |
| Journal | Applied Catalysis A: General |
| Volume | 468 |
| Page Numbers | 418-425 |
| Abstract | Hydrogenolysis of alcohols was carried out using n-heptane solvent and Ir-ReOx/SiO2 catalyst, which has been known to be active in water solvent. Hydrogenolysis of trans-1,2-cyclohexanediol proceeded more smoothly in n-heptane than in water. The maximum yield of cyclohexanol was 74%, and at longer reaction time cyclohexane was selectively formed (>80% yield). Stronger adsorption of substrate on catalyst surface in n-heptane than in water is one of factors in obtaining the good yields. Alkane solvent was also advantageous to water solvent in hydrogenolysis of mono-alcohols. The reaction route via acid-catalyzed dehydration and subsequent hydrogenation is enhanced in alkane solvent. On the other hand, the "direct" hydrogenolysis driven by the hydride-like species is suppressed in alkane solvent, leading lower activity in n-heptane for hydrogenolysis of tetrahydrofurfuryl alcohol or 1,2-hexanediol, which smoothly react over Ir-ReOx/SiO2 catalyst in water. (C) 2013 Elsevier B.V. All rights reserved. |
| Doi | 10.1016/j.apcata.2013.09.021 |
| Wosid | WOS:000327804200048 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | Hydrogenolysis; Alcohol; Solvent effect; Iridium; Rhenium |