Allylbenzene isomerisation over as-synthesized MgAl and NiAl containing LDHs: Basicity-activity relationships
Source abstract
Abstract
Abstract Isomerisation of allylbenzene to β-methyl styrene ( cis + trans ) has been successfully carried out over Mg and Ni containing as-synthesized hydrotalcites (HTs). The samples screened by varying the M(II)/Al atomic ratio showed that MgAl4–HT and NiAl4–HT (M(II)/M(III) atomic ratio is around 4.0) exhibited a maximum conversion of 99% and 95% respectively at 160 °C using DMF as solvent in 6 h. Studies were done to discern the surface basicity of these samples through CO 2 temperature programmed desorption and phenol adsorption. Both measurements gave reasonable correlation with isomerisation activity. This reaction can be studied as a model reaction for assessing basicity of as-synthesized HTs augmenting the earlier results of Aramendia et al. for calcined HTs (Aramendia, 2002, 2004).
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Mesoporous Materials and Catalysis · Catalysts for Methane Reforming
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Accelerated study of the citral–acetone condensation kinetics over activated Mg–Al hydrotalcite10.1016/j.apcata.2007.03.022 ↗
2. Hantzsch pyridine synthesis using hydrotalcites or hydrotalcite-like materials as solid base catalysts10.1016/j.apcata.2007.12.028 ↗
3. Isomerization of 3-phenyl-1-propene (allylbenzene) over base catalysts10.1016/S0021-9517(02)93733-4 ↗
4. Magnesium-containing mixed oxides as basic catalysts: base characterization by carbon dioxide TPD-MS and test reactions10.1016/j.molcata.2004.04.006 ↗
5. Acido-basicity of Mg–Ni–Al mixed oxides from LDH precursors: a FTIR and XPS study10.1021/jp0673011 ↗
6. Probing the surface acidity of lithium aluminium and magnesium aluminium layered double hydroxides10.1039/a801323c ↗
7. Layered double hydroxide supported nanoplatinum and nanopalladium catalyzed allylation of aldehydes: a mechanistic study10.1002/adsc.200505179 ↗
8. Structure-reactivity relationships for basic catalysts derived from a Mg2+/A13+ /CO3− layered double hydroxide10.1007/BF00811370 ↗
9. Exploring, tuning and exploiting the basicity of hydrotalcites for the applications of heterogeneous catalysis10.1002/chem.200900060 ↗
10. Duan · 2006
11. Double bond migration, cyclohexadiene disproportionation and alkyne hydration by Dowex® 1-RhCl3 ion pair catalysts10.1016/S1381-1169(97)00089-7 ↗
12. Isophorone isomerization as model reaction for the characterization of solid bases: application to the determination of the number of sites10.1016/S0021-9517(02)93743-7 ↗
13. Evidences for decarbonation and exfoliation of layered double hydroxide in N, N-dimethylformamide–ethanol solvent mixture10.1016/j.jssc.2007.05.003 ↗
14. NiAl hydrotalcite as an efficient and environmentally friendly solid catalyst for solvent-free liquid-phase selective oxidation of ethylbenzene to acetophenone with 1atm of molecular oxygen10.1016/j.jcat.2006.03.021 ↗
15. Isomerization of eugenol and alkenyl aromatics of perfumery interest over Ni-containing layered double hydroxides as solid base catalysts10.1016/j.cattod.2008.03.023 ↗
16. Joint Committee on Powder Diffraction Standards, International Centre for Diffraction Data, Pennsylvania, USA, 1996, Set No. 46.
17. Catalytic decomposition of nitrous oxide over calcined cobalt aluminium hydrotalcites10.1016/S0920-5861(99)00159-5 ↗
18. Synthesis and characterization of CuMgAl ternary hydrotalcites as catalysts for the hydroxylation of phenol10.1016/j.jcat.2005.01.032 ↗
19. Isomerisation of eugenol and safrole over MgAl hydrotalcite, a solid base catalyst10.1039/b207865a ↗
20. Catalytic isomerization of estragole to anethole over hydrotalcites and HT-like compounds10.1016/j.molcata.2005.08.049 ↗
21. Mg–Al hydrotalcites as the first heterogeneous basic catalysts for the Kornblum oxidation of benzyl halides to benzaldehydes using DMSO10.1016/j.tetlet.2007.12.055 ↗
22. Structure and basicity of mesoporous materials from Mg/Al/In layered double hydroxides prepared by separate nucleation and aging steps method10.1007/s10934-005-5234-z ↗
23. Hydrocarbon oxidation and aldol condensation over basic zeolite catalysts10.1016/j.cattod.2006.01.032 ↗
24. Characterization of basic catalysts by the use of nitromethane as NMR probe molecule and reactant10.1016/j.jcat.2003.12.017 ↗
25. Synthesis, anion exchange, and delamination of Co–Al layered double hydroxide: assembly of the exfoliated nanosheet/polyanion composite films and magneto-optical studies10.1021/ja0584471 ↗
26. Heck reaction catalyzed by colloids of delaminated Pd-containing layered double hydroxide10.1016/j.molcata.2008.05.003 ↗
27. Suzuki cross-coupling reactions over Pd(II)-hydrotalcite catalysts in water10.1016/j.molcata.2008.01.031 ↗
28. CO2 sorption on hydrotalcite and alkali-modified (K and Cs) hydrotalcites at high temperatures10.1016/j.seppur.2008.01.011 ↗
29. Lactic acid production from glucose over activated hydrotalcites as solid base catalysts in water10.1016/j.catcom.2007.10.005 ↗
30. Investigation of acid–base properties of catalysts obtained from layered double hydroxides10.1021/jp002715u ↗
31. Activation of Mg–Al hydrotalcite catalysts for aldol condensation reactions10.1006/jcat.1997.1878 ↗
32. Attempt to generate strong basicity on silica and titania10.1021/jp710213j ↗
33. Comments on the use of 2-methylbut-3-yn-2-ol decomposition as a probe reaction for the potential reactivity Mg–Al hydrotalcites as base catalysts10.1007/s10562-004-3465-2 ↗
34. DRIFT, XPS and XAS investigation of Au–Ni/Al2O3 synergetic catalyst for allylbenzene isomerization10.1007/s11244-008-9167-z ↗
35. Correlation between the basicity of solid bases and their catalytic activity towards the synthesis of unsymmetrical organic carbonates10.1016/j.jcat.2004.10.024 ↗
36. Influence of water on the activity and stability of activated MgAl hydrotalcites for the transesterification of tributyrin with methanol10.1016/j.jcat.2007.12.008 ↗
37. Proazaphosphatrane P(RNCH2CH2)3N (R=Me, i-Pr)-catalyzed isomerization of allylaromatics, allyl phenyl sulfide, allyl phenyl sulfone, and bis-allylmethylene double bond-containing compounds10.1002/adsc.200505224 ↗