- A highly stable metal-organic framework with cubane-like clusters for the selective oxidation of aryl alkenes to aldehydes or ketones
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Triazine derivatives, a class of electron-deficient π-conjugated molecules with high photochemical activity and excellent luminescent characteristics, have been utilized as a kind of electron-acceptor for the construction of molecular cages, luminescent and photochromic materials. In this paper, a novel and highly stable MOF with cubane-like clusters, [Co4(SO4)3(F)3(tpt)2(tatb)] (1) (tpt = 2,4,6-tris-(4-pyridyl)-1,3,5-triazine, H3tatb = 4,4′,4′′-(1,3,5-triazine-2,4,6-triyl)tribenzoic acid), has been successfully synthesized based on a triazine derivative, and possesses unprecedented sulfate- and fluoride-bridged cubane-type tetranuclear cobalt clusters and a 3D + 3D → 3D open framework. Compound1shows a rather high BET surface area and exhibits excellent thermal stability and high chemical stability in common solvents and even in acidic or basic solutions (in a pH range from 4 to 12). Moreover, catalytic measurements show that compound1is an excellent heterogeneous catalyst for the selective oxidation of aryl alkenes to aldehydes or ketones with conversions of 97%.
- He, Chixian,Liu, Jiaming,Liu, Jian-Jun,Liu, Teng,Shen, Xianfu,Shen, Xiang
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p. 4667 - 4673
(2021/07/11)
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- Flow ozonolysis using a semipermeable Teflon AF-2400 membrane to effect gas - Liquid contact
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(Figure Presented) A flow-through chemistry apparatus has been developed which allows gases and liquids to contact via a semipermeable Teflon AF-2400 membrane. In this preliminary investigation, the concept was proven by application to the ozonolysls of a series of alkenes.
- O'Brien, Matthew,Baxendale, Ian R.,Ley, Steven V.
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supporting information; experimental part
p. 1596 - 1598
(2010/06/16)
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- Biocatalysed synthesis of the enantiomers of the floral odorant Florhydral
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The two enantiomers of the floral odorant Florhydral were prepared by enzymatic methods, and their olfactory properties were evaluated. (+)-Florhydral was found to be much more powerful than the (-)-enantiomer.
- Abate, Agnese,Brenna, Elisabetta,Dei Negri, Claudia,Fuganti, Claudio,Serra, Stefano
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p. 899 - 904
(2007/10/03)
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- Method for producing aromatic carbonyl compounds
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A method for producing an aromatic carbonyl compound represented by the formula (B)-1 or (B)-2: STR1 comprising decomposing a hydroperoxide represented by the formula (A)-1 or (A)-2: STR2 wherein R1, R2, R3 and R4/su
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