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Vapor phase alkylation of toluene using various alcohols over H3PO4/MCM-41 catalyst: influence of reaction parameters on selectivity and conversion
Alkylation toluene mesoporous MCM-41 vapor phase H3PO4
2010/12/20
A mesoporous MCM-41 molecular sieve material with a molar ratio of SiO2/Al2O3 = 70 and loaded with H3PO4 was used as a catalyst for the alkylation of toluene, using various alcohols, namely methanol, ...
Solid phase extraction of copper, nickel, and cobalt in water samples after extraction using surfactant coated alumina modified with indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption spectrometry
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
2010/12/3
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
'Solid phase extraction of Copper, Nickel and Cobalt in water samples after extraction using surfactant Coated alumina modified with Indane-1,2,3-trione 1,2-dioxime and determination by flame atomic absorption
Solid phase extraction surfactant coated alumina atomic absorption spectrometry
2010/10/19
A simple method for simultaneous pre-concentration of Cu, Ni, and Co metal ions prior to their determination by flame atomic absorption spectrometry is reported. The method is based on the extraction ...
Heterocyclic synthesis using nitrilimines: part 14. Synthesis of new pyrazole derivatives
Nitrilimines 1,3-dipolar cycloaddition phthalides pyrazoles
2010/10/18
A new series of 1,3,4,5-tetrasubstituted pyrazoles have been synthesized by the 1,3-dipolar cycloaddition of suitable nitrilimines to 3-propylidene and 3-benzylidene-phthalide. Both analytical and spe...
Friedel-Crafts acylation of arenes with carboxylic acids using silica gel supported AlCl3
Acylation aluminium trichloride ketones silica gel
2010/10/19
Aromatic compounds react smoothly with carboxylic acids in the presence of silica gel supported aluminium trichloride to afford the corresponding ketones with high regioselectivity in high to excellen...
Convenient synthesis of monomeric steroids from steroidal oxalate dimers using flash vacuum pyrolysis (FVP)
Steroid oxalate dimers steroidal alkene diene triene
2010/10/18
Flash vacuum pyrolysis (FVP) or thermolysis (FVT), an environmentally friendly method for studying organic reaction mechanisms as well as synthesis, was applied to a series of oxalate dimers (1, 3, 5,...
Direct reductive amination of carbonyl compounds using sodium borohydride-silica chloride
Reductive amination silica chloride sodium borohydride
2010/10/15
A simple and convenient procedure for reductive amination of aldehydes and ketones using sodium borohydride in the presence of silica chloride as an active, inexpensive, recoverable, and recyclable ca...
An efficient one pot synthesis of 1,4-dihydropyridines using alumina sulfuric acid (ASA) catalyst
Hantzsch 1 4-dihydropyridines ASA catalyst one pot conversion
2010/4/8
An efficient synthetic method for 1,4-dihydropyridines has been developed using 3 or 4 component condensation reactions of aldehydes, 1,3-dicarbonyl compounds, and ammonium acetate in the presence of ...
Determination of the host phase of rare earth elements in natural carbonate using X-ray absorption near-edge structure
rare earth elements yttrium XANES carbonate
2017/8/9
The Y K-edge X-ray absorption near-edge structure (XANES) spectra of various materials were measured to investigate whether rare earth elements (REEs) are incorporated in carbonate phase or in other m...
Investigation of Biodiesel Production from Canola Oil Using Amberlyst-26 as a Catalyst
Biodiesel heterogeneous catalyst Amberlyst-26
2010/4/9
The transesterification of canola oil to fatty acid methyl esters was studied using Amberlyst-26 as a solid catalyst. The influence of reaction conditions, such as the reaction time, methanol to oil m...
Quantitative Structure--Retention Study of Some 2,4-dioksotetrahydro- 1,3--thiazole Derivatives Using the Partial Least Squares Method
2,4-dioksotetrahydro-1,3-thiazoles Quantitative Structure-Retention Relationships (QSRR) Molecular descriptors Partial Least Squares Regression (PLS)
2010/4/9
Thin-layer chromatography on rice starch support and aqueous ammonia--organic modifier (methanol, dioxane, and acetone) mobile phases was used to study the effect on retention of the chromatographic s...
Production of (S)-(-)-1-(1´-Napthyl) Ethanol by Rhodotorula glutinis Isolate Using Ram Horn Peptone
Acetonapthone bioreduction microbial reduction asymmetric reduction
2010/4/13
The bioreduction of 1-acetonaphthone 1 by locally isolated Rhodotorula glutinis strains using ram horn peptone (RHP) gave (S)-(-)-1-(1´-naphthyl) ethanol (2), an important pharmaceutical interme...
Quantifying Microbial Utilization of Petroleum Hydrocarbons in Salt Marsh Sediments by Using the 13 C Content of Bacterial rRNA
Quantifying Microbial Utilization Salt Marsh Sediments
2014/4/8
Natural remediation of oil spills is catalyzed by complex microbial consortia. Here we took a wholecommunity approach to investigate bacterial incorporation of petroleum hydrocarbons from a simulated ...
Investigation of Biodiesel Production from Canola Oil using Mg-Al Hydrotalcite Catalysts
Biodiesel transesterification Mg--Al hydrotalcite heterogeneous base catalyst
2010/4/16
Biodiesel produced by the transesterification of vegetable oils is a promising alternative fuel to diesel because of limited fossil fuel resources and environmental concerns. The use of heterogeneous ...
专著信息
书名
Catalytic Enantioselective Synthesis of 2,6-Disubstituted Dihydropyrones by Hetero-Diels-Alder Reaction Using Chiral Binol_Ti(IV) complex
语种
英文
撰写或编译
作者
Huang Yaozong,Feng Xiaoming,Wang Bin et...