搜索结果: 1-15 共查到“Efficient Synthesis”相关记录16条 . 查询时间(0.5 秒)
Preparation and characterization of nano-CaO based on eggshell waste：Novel and green catalytic approach to highly efficient synthesis of pyrano[4,3-b]pyrans
Nano-calcium oxide Eggshell waste Biocatalyst Pyrano[4,3-b]pyrans Ball-mill
2014/3/8
Nano-CaO was prepared by calcination of ball-milled chicken eggshell waste. This novel, bioactive, heterogeneous catalyst, which had high catalytic activity and reusability, was used in the green synt...
In situ generation of trityl carbocation (Ph3C+) as a homogeneous organocatalyst for the efficient synthesis of 4, 4’-(arylmethylene)-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol)s
Trityl chloride (Ph3CCl) Trityl carbocation (Ph3C+) 4,4'-(Arylmethylene)-bis(3- methyl-1-phenyl-1H-pyrazol-5-ol) 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one Solvent-free synthesis
2014/3/11
Trityl chloride (Ph3CCl) efficiently catalyzes the condensation of 3-methyl-1-phenyl-1H-pyrazol- 5(4H)-one and aromatic aldehydes under mild and solvent-free conditions, affording 4,4'- (arylmethylene...
Highly Efficient Synthesis of Clean Biofuels from Biomass Using FeCuZnAlK Catalyst
Biomass Biofuel Higher alcohol Liquid hydrocarbon FeCuZnAlK catalyst
2012/4/5
Highly efficient synthesis of clean biofuels using the bio-syngas obtained from biomass gasi-fication was performed over Fe1.5Cu1Zn1Al1K0.117 catalyst. The maximum biofuel yield from the bio-syngas re...
An efficient synthesis of Schiff bases containing benzimidazole moiety catalyzed by transition metal nitrates
Aldehyde 2-aminobenzimidazole catalyst Schiff bases
2010/10/18
A simple and efficient method has been developed for the synthesis of some novel Schiff bases via the reaction of aromatic aldehydes with 2-aminobenzimidazole by using catalytic amount of M(NO3)2.xH2O...
Highly stereoselective and efficient synthesis of the dopa analogue in pepticinnamin E via enantioselective hydrogenation of dehydroamino acids
Synthesis dopa analogue enantioselective hydrogenation
2010/10/15
An efficient and new method was developed to prepare the dopa analogue 11 in natural pepticinnamin via catalytic hydrogenation of dehydroamino acids (DDAA) with a good yield and ee. Product 11 is a ke...
Efficient Synthesis of (S)-1-(2-chlorophenyl)ethanol in the Submerged Culture of Alternaria alternata Isolate
Alternaria alternata bioconversion biocatalysis 2-chloroacetophenone fermentation optimization
2009/9/15
99%. Under the optimum conditions, after 54 h reaction time, 24 mmol/L 2 from 30 mmol/L 1 could be produced. As a result, the submerged fer-mentation of A. alternata EBK-8 was found to be suitable for...
Zeolite catalyzed efficient synthesis of perimidines at room temperature
Diaminonaphthalene perimidine zeolite
2010/4/8
Arylperimidines, 3(a-l), were synthesized in good yields by cyclocondensation reaction of 1,8-diaminonaphthalene and aromatic aldehydes in the presence of NaY zeolite as a catalyst. The simple environ...
Efficient Synthesis of Imidazole Derivatives: An Important Synthon for the Preparation of Biologically Active Compounds
Imidazole N-chlorosuccinimide chloroimidazole chloroimidazole-carboxaldehyde
2010/4/16
4(5)-Chloro-imidazole-5(4)-carboxaldehyde derivatives are important precursors for the preparation of biologically active compounds. We developed a simple, novel, and efficient method for the synthesi...
A Convenient and Efficient Synthesis of N-Acylsulfonamides in the Presence of Silica Phosphoric Acid under Heterogeneous and Solvent-Free Conditions
N-acylsulfonamide solvent-free silica phosphoric acid heterogeneous condition N-acylation
2010/4/8
Reaction of sulfonamides with carboxylic acid anhydrides and chlorides in the presence of silica phosphoric acid provided N-acyl sulfonamides in good to high yields. All reactions were performed under...
摘要 Sodium tetrafluoroborate (NaBF4) was found to catalyze the electrophilic substitution reactions of indoles with aldehydes and ketones under solvent-free conditions to afford the corresponding bis(i...
An Efficient Synthesis of α-(2,4-dichloro-phenoxy acetoxy)Aryl Methyl Phosphonates Monosodium Salts
2007/7/28
期刊信息
篇名
An Efficient Synthesis of α-(2,4-dichloro-phenoxy acetoxy)Aryl Methyl Phosphonates Monosodium Salts
语种
英文
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作者
Tao Wang,Hong Wu He
第一作者单位
华中师范大学
刊物名称
SYNTHETIC COMMUNICATIONS
页面
34 (8):...
期刊信息
篇名
Efficient synthesis of benzaldehyde by direct carbonylation of benzene in ionic liquids
语种
英文
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作者
Wei Juan Zhao,Xuan Zhen Jiang
第一作者单位
Department of Chemistry, Zhejiang University
刊物名称...
An Efficient Synthesis of Substituted 4-Aryl-3-Cyano-2-Amino Thiophenes by a Stepwise Gewald Reaction
Aminothiophenes bromocrotonitriles substituted aminothiophenes
2010/4/20
The title compounds were efficiently synthesised starting from aryl methyl ketones in 3 steps. Knoevenagel condensation of aryl methyl ketones with malononitrile gave the corresponding crotonitriles (...
An Efficient Synthesis of Alnustone, a Naturally Occurring Compound
alnustone 4(E),6(E)-1,7-diphenyl-hepta-4,6-dien-3-one diarylheptanoid benzaldehyde benzalacetone benzylacetone cinnamaldehyde
2010/4/21
Alnustone, 4(E),6(E)-1,7-diphenyl-hepta-4,6-dien-3-one, was synthesized starting from benzaldehyde in three steps with an overall yield of 57%. The condensation of benzaldehyde with acetone gave benz...
Efficient Synthesis of 1-Alkoxycarbonyl-Methyl-2-Alkylpyrroles from Dichloro- and Methoxychloropropylalkyl Ketones
1-Alkoxycarbonyl-Methyl-2-Alkylpyrroles from Dichloro- Efficient Synthesis
2010/4/22
The condensation reaction of 2,3-dichloropropyl- and 2-methoxy-3-chloropropyl alkyl ketones with alkyl 2-aminoacetate salts leads to 1-alkoxy-carbonylmethyl-2-alkylpyrroles. These compounds, with vari...