hexane相关论文
Novel trifluoropropylmethylsiloxane dimethylsiloxane (PDMS-PTFPMS)/ polyvinylidene fluoride (PVDF) membranes were develo......
High efficient conversion of sorbitol to gasoline-range alkanes over the Ru/C catalyst combined with
High-energy-density hydrocarbons produced from biomass,such as cellulose and carbohydrates,has been raised significant a......
Tetraselmis sp.-1 is a new microalgae strain constructed by cell fusion technique. In this paper, the mixotrophic cultiv......
<正> Since the discovery of lithium alkyls as synthetic reagents, alkyl chlorides become more...
C<sub>60</sub> （Buckminsterfullerene） is now one of the most notable carbon clusters. Recently Wennerstrm treated C<sub>......
This paper reported the copolymerization results of butadiene and isoprene catalyzed byNdC_6H_6(AlCl_4)_3-AlR_3 system.......
Extractive oxidative desulfurization of model oil/crude oil using KSF montmorillonite-supported 12-t
12-Tungstophosphoric acid(PW) supported on KSF montmorillonite, PW/KSF, was used as catalyst for deep oxidative desulfur......
Synthesis, structure and catalytic behavior of ytterbium complexes bearing a phenoxy(quinolinyl)amid
Two ytterbium complexes stabilized by phenoxy(quinolinyl)amide ligand 3,5-Bu t 2 -2-OC 6 H 2 CH 2 N-8-C 9 H 6 N (L) were......
Alkynyl selenides were prepared under very mild conditions by reacting terminal alkynes with respective diorganic disele......
Poly(4-vinylpyridinium tribromide) as metal-free,green and recoverable oxidizing polymer for the che
Poly(4-vinylpyridinium tribromide) was prepared from poly(4-vinylpyridin) and used for the selective oxidation of a vari......
Polymerization of acrylonitrile catalyzed by lanthanide-sodium alkoxide clusters Ln_2(OCH_2CH_2NMe_2
Polymerization of acrylonitrile was carried out using,for the first time,the lanthanide-sodium alkoxide clusters Ln2(OCH......
PREPARATION OF POLYPROPYLENE/CLAY NANOCOMPOSITES BY in situ POLYMERIZATION WITH TiCl_4/MgCl_2/CLAY C
TiCl_4/MgCl_2/clay compound catalyst was prepared by chemical reaction.Exfoliated polypropylene(PP)/clay nanocomposites ......
Development of sequential type iron salt-catalyzed Nazarov/Michael reaction in an ionic liquid solve
Sequential type one pot Nazarov/Michael reaction of pyrrole derivatives has been demonstrated using 5 mol% Fe(ClO4)3·Al......
A new diterpene and a new sesquiterpene were isolated from Pteris dispar and identified on the basis of spectral data in......
Optimization of Ultrasonic Extraction and Clean-up Protocol for the Determination of Polycyclic Arom
The procedures of ultrasonic extraction and clean-up were optimized for the determination of polycyclic aromatic hydroca......
Reaction of isatoic anhydride with aniline derivatives gave 2-amino-N-(aryl)benzamides.The latters reacted with phenyli-......
A novel divinyl ether was synthesized by a convenient method with high yield.Then the divinyl ether was combined with 2-......
A highly efficient catalytic system composed of a simple and commercially available chiral primary diamine(1R,2R)-cycloh......
SmI_2-promoted imino-Reformatsky reaction for facile synthesis of enantioenriched β-amino acid ester
A facile and efficient method for the stereoselective synthesis of β-amino acid esters via SmI2-promoted imino-Reformat......
Novel supramolecular organocatalysts of hydroxyprolinamide based on calix[4]arene scaffold for the e
A series of novel supramolecular organocatalysts of hydroxyprolinamide based on the upper rim of calix[4]arene scaffold ......
Intermolecular cyclocondensation reaction of 3,4-dihydropyrimidine-2-thione under the Mitsunobu reac
A self-intermolecular cyclocondensation reaction of 3,4-dihydropyrimidine-2-thione(DHPM) to give a novel tricyclic struc......
Ultrasonic Nebulization Extraction Coupled with Gas Chromatography-Mass Spectrometry for Analysis of
The ultrasonic nebulization extraction(UNE) was developed and applied to the extraction of volatile components from trad......
Egg yolk phosphatidylcholine(EYPC) is being widely used in food and pharmaceutical industries nowadays owing to its surf......
Traditional solvent recovery in the extraction step of edible oil processing is distillation,which consumes large amount......
Asymmetric conjugated addition of allylcopper reagents derived from an allyl Grignard reagent and CuBr·Me_2S to chiral......
Enantiomer separation is one of the most important prerequisites for the investigation of environmental enantioselective......
The study concerns the use of MgCl2-supported high-activity Ziegler-Natta catalysts for the polymerization of ethylene.I......
Functional polyacetylenes containing pyridinium side groups(PPyA-MX,X = Br and I) were successfully synthesized.Spectros......
{[K.18-Crown-6]Br3}n , a unique tribromide-type catalyst, was utilized for the N-boc protection of amines and trimethyls......
Synthesis and Characterization of a Sb(Ⅲ) Complex with α-Diimine Ligand and a C_(sp3)-C_(sp3) Coupli
A Csp3-Csp3 coupling production of the original ligand molecule [(CMeN(2,6-iPr2C6H3))2]2 (1) and an antimony ionic compo......
有周期或非循环的酉同类的芳香的醛的直接不对称的丁间醇醛反应被朊酶面对水在 acetonitrile 从曲霉属菌 melleus (安培) 催化。大......
Solvent-induced molecular gel formation at room temperature and the preparation of related gel-emuls
The gelation behaviors of four recently reported amphiphilic cholesteryl derivatives (1, 2, 3 and 4) have been evaluated......
LAlH2(L=(Z)-4-[(2,6-二异丙基苯基)氨基]戊-3-烯-2-亚基-2,6-二异丙基苯胺)与2-三氟甲基苯硼酸反应,合成含铝氧硼六元环的化合物L......
The hydrophobic silica aerogel(SiO2 aerogel) was prepared by in situ polymerization sol-gel method and ethanol supercrit......
PARTIAL CARBAMOYLATION OF CELLULOSE MICROSPHERES: A NEW METHOD TO PREPARE ADSORBENTS FOR LIQUID CHRO
Micron-sized cellulose microspheres were prepared through sol-gel method using NaOH/urea solution to dissolve cellulose,......
An efficient synthesis of thiazines from the three component reactions between dialkyl acetylenedicarboxylates,arylisoth......
The scandium terminal imido complex supported by a monoanionic tetradentate NNNN ligand, [LSc=N(DIPP)](L = [MeC(N(DIPP))......
Synthesis and optoelectronic properties of a novel molecular semiconductor of dithieno[5,6-b:11,12-b
A facile procedure for the synthesis of dithieno[5,6-b:11,12-b0]coronene-2,3,8,9-tetracarboxylic tetra(2-ethylhexyl)este......
Syntheses and Crystal Structures of Homleptic Lanthanide Complexes [C_6H_5COCHC(CH_3)N-(p-ClC_6H_4)]
Three homoleptic lanthanide complexes, [C6H5COCHC(CH3)N(p-ClC6H4)]3Ln(THF)n(n = 0, Ln = Yb(1); n = 0, Ln = Y(2); n = 1, ......
A simple and efficient method was developed for the synthesis of 2,20-arylmethylene dicyclohexane-1,3-dione derivatives ......
A new 4,5-diaryl-1H-imidazole was synthesized and characterized by 1H NMR, ESI-MS, elemental analysis and FT-IR. The cry......
Synthesis and characterization of MH···HOR dihydrogen bonded ruthenium and osmium complexes(η~5-C_5H
Treatment of RuCl2(PPh3)3 with 6-dimethylaminopentafulvene in THF in the presence of water produced(η5-C5H4CHO) RuCl(PP......
Boron- and silicon-bridged bis(diphenylphosphino)-type ligands for chromium-catalyzed ethylene oligo
PNP-type ligands showed very good property in the catalytic systems of PNP/Cr(Ⅲ)/methylaluminoxane(MAO)for ethylene sel......
A novel phenylacetylene derivative containing urea groups was synthesized and polymerized with a Rh catalyst to give the......
Asymmetric cooperative catalysis in the conjugate addition of pyrazolones to nitroolefins and subseq
Over the past decade many bifunctional amine-thioureas have been developed as active metal-free organocatalysts.Cooperat......
We describe a convenient method for the synthesis of 1,2-disubstituted acetylenes via a cross-coupling reaction of(bromo......
The linear trienes were obtained in high yields by copper-mediated cycloaddition of 2,5-bis(trimethylsilyl)zirconacyclop......
An improved synthesis of rupintrivir (AG7088) was accomplished using three amino acids (L-glutamic acid, D-4-fluoropheny......
Preparation and Enantioseparation Property of Chiral Stationary Phases Based on Cellulose Tris(3,5-d
A new method to prepare polysaccharide-coating type chiral stationary phases(CSPs) was developed in this work. As a typi......
