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DE-627 |
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20231223115241.0 |
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231223s2007 xx ||||| 00| ||eng c |
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|a pubmed24n0562.xml
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|a (DE-627)NLM168497697
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|a (NLM)17309205
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Jana, Sreyashi
|e verfasserin
|4 aut
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| 245 |
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|a Anchoring of copper complex in MCM-41 matrix
|b a highly efficient catalyst for epoxidation of olefins by tert-BuOOH
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|c 2007
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 27.06.2007
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|a Date Revised 20.02.2007
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a A complex moiety containing copper (II) has been anchored covalently into the organic-modified Si-MCM-41 to prepare a new catalyst. The amine group containing organic moiety 3-aminopropyl-triethoxysilane has been first anchored on the surface of Si-MCM-41 via silicon alkoxide route. The amine group upon condensation with salicyldehyde affords a bidentate ligand in the mesoporous matrix for anchoring copper(II) ions. The prepared catalyst has been characterized by UV-vis, electron paramagnetic resonance (EPR), and infrared (IR) spectroscopic analysis, small-angle X-ray diffraction, and N2 sorption study. A remarkable difference in the pore structure has been observed after the immobilization of copper(II) complex in Si-MCM-41. The catalyst showed excellent catalytic efficiency in epoxidation reactions with various olefinic compounds including styrene and allyl alcohol, using tert-BuOOH as oxidant. Notably, styrene shows unprecedented high conversion (97%) as well as epoxide selectivity (89%) with tert-BuOOH over the Cu-MCM-41 catalyst
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|a Journal Article
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|a Dutta, Buddhadeb
|e verfasserin
|4 aut
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|a Bera, Rajesh
|e verfasserin
|4 aut
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| 700 |
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|a Koner, Subratanath
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 5 vom: 27. Feb., Seite 2492-6
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:23
|g year:2007
|g number:5
|g day:27
|g month:02
|g pages:2492-6
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| 912 |
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|a GBV_ILN_22
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| 912 |
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|a GBV_ILN_350
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| 912 |
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|a GBV_ILN_721
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| 951 |
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|a AR
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| 952 |
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|d 23
|j 2007
|e 5
|b 27
|c 02
|h 2492-6
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