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Cornstalk cellulose was liquefied in sub-and supercritical ethanol using an autoclave at 320 oC,160ml ethanol.Effects of......
TPGS approved by FDA can be used as a P-gp inhibitor to effectively reverse multi-drug resistance(MDR)and as an anticanc......
<正> The polymerization mechanism of various vinyl monomers in the presence of aromatic tertiary amines has been studied......
<正> In the study of thermal degradation of high polymers, Madorsky and Straus suggested that degradation of polychlorot......
STUDIES ON BIOACTIVE ACRYLIC EASTERS Ⅲ——SYNTHESIS AND POLYMERIZATION OF N-ACRYLOXY-5-NORBORNENE-2, 3
<正> In our previous two works we were mainly concerned with the synthesis and polymerization of two types of new bioact......
<正> Organic compounds are grouped into 23 categories, namely n-alkane, iso-alkanes, n-1-alkenes, 2-alkenes and iso-alke......
<正> Organic compounds are grouped into 30 categories as follows: n-alkanes, 3-methyl alkanes and 3-ethyl alkanes, 2-met......
Selective esterification of non-conjugated carboxylic acids in the presence of conjugated or aromati
Non-conjugated carboxylic acids are selectively esterified in good yields in the presence of conjugated or aromatic carb......
The synthesis of astaxanthin esters,independent of the formation of cysts,highly correlates with the
The compositions and contents of astaxanthin esters and fatty acids in four types of Haematococcus pluvialis cells were ......
Antiviral stereoisomers of 3,5-bis(2-hydroxybut-3-en-1-yl)-1,2,4-thiadiazole from the roots of Isati
Four stereoisomers of 3,5-bis(2-hydroxybut-3-en-1-yl)-1,2,4-thiadiazole, named insatindigothiadiazoles A–D(1a–1d), wer......
An efficient synthetic method was developed to synthesize 2-substituted benzimidazoles and benzo- xazoles with β-keto e......
The iron containing ionic liquid 1-butyl-3-methylimidazolium tetrachloroferrate ([C4mim]Cl/FeCl3; = 0.5) proved to be an......
Study on the Quantitative Structure-toxicity Relationships for the Selected Esters by Using Molecula
The molecular electronegativity interaction vector (MEIV) was used to describe the molecular structure of 30 selected es......
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......
Imidazolium ionic liquid-supported sulfonic acids:Efficient and recyclable catalysts for esterificat
Several imidazolium ionic liquid(IL)-supported sulfonic acids with different anions,[C_3SO_3Hmim]HSO_4,[C_3SO_3Hmim]BF_4......
Istomin和Palm曾提出用模型ΔfH0(RX)=h[R]+h[X]+φ[R]φ[X](式中h[R]和h[X]分别为烷基R和取代基X对单取代烷烃生成焓ΔfH0(RX)的......
Asymmetric hydrogenation of α-keto Weinreb amides has been realized with [Ru((S)-Sunphos)(benzene)Cl]Cl as the catalyst......
The epoxidation of unsaturated fatty acid methyl esters(FAMEs)by peroxyacetic acid generated in situ from hydrogen perox......
综述了非离子糖基天然表面活性剂蔗糖酯的各种合成方法:酰氯酯化法、酯交换法、酶催化法等。重点介绍了现有的较成熟的酯交换法的......
Brnsted acidic ionic liquids, namely 2-pyrrolidonium hydrogen sulfate, N-methyl-2-pyrrolidonium hydrogen sulfate, N-me......
A simple and convenient method for the synthesis of S-aryl phosphorothioates catalyzed by cesium hyd
In the presence of a catalytic amount of cesium hydroxide,the corresponding S-aryl phosphorothioates can be obtained by ......
Synthesis, isolation and characterization of methyl levulinate from cellulose catalyzed by extremely
A direct synthesis of methyl levulinate from cellulose alcoholysis in methanol medium under mild condition(180 210 C)cat......
Peptide thioester preparation via intramolecular O-to-S acyl transfer is a recently developed method for protein chemica......
The ferric perchlorate-promoted reaction of [60]fullerene (C60) with ethyl 2-methylacetoacetate generates fullerenyl hem......
An efficient synthesis of thiazines from the three component reactions between dialkyl acetylenedicarboxylates,arylisoth......
Transition-metal-salt-mediated radical reactions of fullerenes have attracted extensive attention as a new and important......
Direct N-gem-difluorocyclopropylation of nitro-heterocycles by utilizing gem-difluorocyclopropyl tos
We have developed an efficient method to achieve N-gem-difluorocyclopropylation of N-heterocycles with the use of gem-di......
Phosphine-free conversion of alcohols into alkyl thiocyanates using trichloroisocyanuric acid/NH_4SC
A convenient and efficient phosphine-free procedure for the one-pot conversion of primary,secondary and tertiary alcohol......
The mechanism of unexpected reduction of dimethyl pyridine-2,3-dicarboxylate to l,2,3,4-tetrahydrofu
An unexpected reduction of dimethyl pyridine-2,3-dicarboxylate to l,2,3,4-tetrahydrofuro[3,4-b]pyridin-5(7H)-one with so......
ECD spectrometric methods for detecting the enantioselective enzymatic hydrolysis of racemic 3-aceto
(-)-(3R,4S)-3-Acetoxy-4-phenylazetidin-2-one((-)-1) was the key intermediate for preparing optical C-13 side-chain moiet......
Production of octyl levulinate biolubricant over modified H-ZSM-5:Optimization by response surface m
The present study highlighted the use of modified H-ZSM-5(Meso-HZ-5) as heterogeneous catalyst for the synthesis of octy......
One-pot synthesis of novel pyrrolo-1,4-benzoxazines via a three- component reaction of 2-amino pheno
A simple and efficient synthetic protocol has been developed using a one-pot, three-component reaction involving 2-amino......
The(COCl)2 /Hantzsch ester is found to be an effective system for the metal-free reduction of tertiary phosphine oxides.......
Synthesis of Polysubstituted 1,4-Dihydropyridines via Four-component Reactions of Arylamine,Acetylen
An efficient synthetic protocol for the 1,4-diaryl-1,4-dihydropyridines was developed via the domino four-component reac......
A dabco-based basic ionic liquid,1-butyl-4-aza-1-azaniabicyclo[2.2.2]octane hydroxide,has been developed as a catalyst f......
Isoquinoline-mediated 5-vinylation and N-vinylation of benzo[d]oxazole-2-thiol and benzo[d]thiazole-
An effective route to 5-vinylated and N-vinylated benzo[d]oxazole-2(3H)-thiones and benzo[d]thiazole-2(3H)-thiones is de......
A series of fluorinated unsaturated esters which can be used as fluorine-containing monomers have been synthesized. The ......
Terahertz transmission spectra of methylparaben,ethylparaben,propyl-p-hydroxybenzoate and butyl-p-hydroxybenzoate were m......
芳酰乙酸乙酯在乙氧基镁的作用下与取代的苯甲酰氯反应生成2-取代苯并吡喃酮。2-取代苯并吡喃酮和盐酸羟胺经Beckmann重排反应合成......
Cyclotides constitute a fascinating family of circular proteins containing ca.30 amino acid residues.They have a unique ......
Synthesis, Crystal Structure and Biological Activities of Novel Anthranilic(Isophthalic) Acid Esters
In search of environmentally benign insecticides with high activity, low toxicity and low resistance, a series of novel ......
Polycarboxylate(PC) superplasticizers with different chemical structures were synthesized through free radical co-polyme......
Chiral Separation Abilities of Homogeneously Synthesized Cellulose 3,5-Dimethylphenylcarbamates: Inf
A series of cellulose 3,5-dimethylphenylcarbamates(CDMPCs) with different degrees of substitution(DS) and degrees of pol......
A convenient synthesis of 2-aminocyclohex-1-ene-1-carboxylic esters by FeCl_3/SiO_2 nanoparticles as
A simple and green method has been developed for the synthesis of 2-aminocyclohex-1-ene-1-carboxylic esters through a on......
Amino acids were found to be as good ligands for copper-catalyzed borylation reactions of primary and secondary alkyl ha......
Three-component synthesis and antibacterial evaluation of some novel 1,2-dihydroisoquinoline derivat
Isoquinoline reacts with dialkyl acetylenedicarboxylates in the presence of kojic acid or8-hydroxyquinoline to generate ......
Using NH4 I as the supporting electrolyte as well as the precursor of an I2 promoter and nitrogen source, a highly effic......
Facile synthesis of 1-naphthols through a copper-catalyzed arylation of methyl ketones with o-bromoa
The coupling reactions of simple methyl ketones with o-bromoacetophenones and subsquential cyclization reactions were re......
