Please wait a minute...

Frontiers of Chemical Science and Engineering

Front. Chem. Sci. Eng.    2008, Vol. 2 Issue (3) : 296-300     DOI: 10.1007/s11705-008-0044-x
|
Transition metal doped mesoporous titania with a crystalline framework as catalysts for oxidation of -bromotoluene to -bromobenzaldehyde
YANG Zehui1, OU Encai1, WANG Yunan1, PENG Li1, WANG Jiaqiang1, YIN Lihui2
1.Department of Applied Chemistry, Key Laboratory of Medicinal Chemistry for Natural Resource (Yunnan University), Ministry of Education, Yunnan University; 2.Yantai Shougang Dongxing (Group) Co.
Download: PDF(111 KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract Transition metal M (M = Mn, Fe, Co, Ni, Cu, and Zn) doped mesoporous titania with a crystalline framework was employed as catalysts for the oxidation of p-bromotoluene (PBT) to p-bromobenzaldehyde (BBD) in acetic acid using aqueous hydrogen peroxide as oxidant. It was found that mesoporous TiO2 doped with those metals (Fe, Co and Ni) whose atomic radii are relatively smaller exhibited higher conversion rate of PBT. Among these catalysts, the Co/meso-TiO2 exhibited high substrate conversion and good product (p-bromobenzaldehyde) selectivity plus it can be reused once with almost the same activity. The effect of different Ti/Co (molar) ratio on the activities of Co/meso-TiO2 was also investigated.
Issue Date: 05 September 2008
 Cite this article:   
YIN Lihui,YANG Zehui,PENG Li, et al. Transition metal doped mesoporous titania with a crystalline framework as catalysts for oxidation of -bromotoluene to -bromobenzaldehyde[J]. Front. Chem. Sci. Eng., 2008, 2(3): 296-300.
 URL:  
http://journal.hep.com.cn/fcse/EN/10.1007/s11705-008-0044-x
http://journal.hep.com.cn/fcse/EN/Y2008/V2/I3/296
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
YIN Lihui
YANG Zehui
PENG Li
OU Encai
WANG Yunan
1 Krebs F C, Jørgensen M . Controlling the energy levelsof conducting polymers. Hydrogen versus fluorine in poly(dialkylterphenylenevinylene)s.Macromolecules, 2002, 35: 7200–7206.
doi:10.1021/ma020678u
2 Mikroyannidis J A, Spiliopoulos I K, Kasimis T S, Kulkarni A P, Jenekhe S A . Synthesis, photophysics,and electroluminescence of conjugated poly(p-phenylenevinylene) derivatives with 1,3,4-oxadiazolesin the backbone. Macromolecules, 2003, 36: 9295–9302.
doi:10.1021/ma034793w
3 Nokami J, Furukawa A, Okuda Y, Hazato A, Kurozumi S . Palladium-catalyzed coupling reactionsof bromobenzaldehydes with 3,4-di(tert-butyldimethylsilyloxy)-1-alkene to (3,4-dihydroxyalkenyl)benzaldehydesin the synthesis of lipoxin analogues. Tetrahedron Lett, 1998, 39: 1005–1008.
doi:10.1016/S0040‐4039(97)10801‐2
4 Hass H B, Bender M L . The reaction of benzyl halideswith the sodium salt of 2-nitropropane. 1. A general synthesis ofsubstituted benzaldehydes.J Am Chem Soc, 1949, 71: 1767–1769.
doi:10.1021/ja01173a066
5 Hass H B, Bender M L . o-Tolualdehyde. Org Syn Coll, 1963, 4: 932–932
6 Cole T E, Pettit R . Reduction of acid chloridesto aldehydes by means of the hydridoirontetracarbonyl anion. Tetrahedron Lett, 1977, 18: 781–784.
doi:10.1016/S0040‐4039(01)92754‐6
7 Hutchins R O, Markowits M . μ-Bis(cyanotrihydroborato)-tetrakis(triphenylphosphine) dicopper(I).A new, selective, pH dependent reducing agent.Tetrahedron Lett, 1980, 21: 813–816.
doi:10.1016/S0040‐4039(00)71512‐7
8 Chen Q, Zhu P, Wang Z H . Chinese Patent, 97 106 992, 2001
9 Antonelli D M, Ying J Y . Synthesis of hexagonallypacked mesoporous TiO2 by a modified Sol-Gelmethod. Angew Chem Int Ed Engl, 1995, 34: 2014–2017.
doi:10.1002/anie.199520141
10 Yang P, Zhao D, Margolese D I, Chmelka B F, Stucky D G . Block copolymer templatingsyntheses of mesoporous metal oxides with large ordering lengths andsemicrystalline framework. Chem Mater, 1999, 11: 2813–2816.
doi:10.1021/cm990185c
11 Yue Y, Gao Z . Synthesis of mesoporous TiO2 with a crystalline framework. Chem Commun, 2000, 1755–1756
12 Wang K, Morris M A, Holmes J D . Preparation of mesoporous titania thin films with remarkablyhigh thermal stability. Chem Mater, 2005, 17: 1269–1271.
doi:10.1021/cm047912a
13 Sreethawong T, Suzuki Y, Yoshikawa S . Photocatalytic evolution of hydrogen over nanocrystallinemesoporous titania prepared by surfactant-assisted templating sol-gelprocess, Catal Commun, 2005, 6: 119–124
14 Cassiers K, Linssen T, Mathieu M, Bai Y Q, Zhu H Y, Cool P, Vansant E F . Surfactant-directed synthesisof mesoporous titania with nanocrystalline anatase walls and remarkablethermal stability. J Phys Chem B, 2004, 108: 3713–3721.
doi:10.1021/jp036830r
15 Yoshitake H, Sugihara T, Tatsumi T . Preparation of wormhole-like mesoporous TiO2 with an extremely large surface area and stabilizationof its surface by chemical vapor deposition. Chem Mater, 2002, 14: 1023–1029.
doi:10.1021/cm010539b
16 Perkas N, Wang Y, Koltypin Y, Gedanken A, Chandrasekaran S . Mesoporous iron–titaniacatalyst for cyclohexane oxidation. ChemCommun, 2001, 2: 988–989.
doi:10.1039/b100910a
17 Idakiev V, Ilieva L, Andreeva D, Blin J L, Gigot L, Su B L . Complete benzene oxidation over gold-vanadia catalysts supportedon nanostructured mesoporous titania and zirconia. Appl Catal A: Gen, 2003, 243: 25–39.
doi:10.1016/S0926‐860X(02)00534‐3
18 Yao W, Fang H, Ou E, Wang J, Yan Z . Highly efficient catalytic oxidation of cyclohexane overcobalt-doped mesoporous titania with anatase crystalline structure. Catal Commun, 2006, 7: 387–390.
doi:10.1016/j.catcom.2005.12.012
19 Wang J, Fang H, Li Y, Li J, Yan Z . Liquid phase oxidation of p-chlorotoluene to p-chlorobenzaldehydeover cobalt-doped mesoporous titania with a crystalline framework. J Mol Catal A: Chem, 2006, 250: 75–79.
doi:10.1016/j.molcata.2006.01.040
20 Mauryaa S K, Patil P, Umbarkar S B, Gurjar M K, Dongare M, Rudiger S, Kemnitz E . Vapor phase oxidation of4-fluorotoluene over vanadia-titania catalyst. J Mol Catal A: Chem, 2005, 234: 51–57.
doi:10.1016/j.molcata.2005.02.020
21 Chang R . GeneralChemistry, 7th ed. New York: McGraw-Hill Higher Education Inc, 2002, 879
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed