isomerization相关论文
The occurrence of vanadium in nature:its biogeochemical cycling and relationship with organic matter
Vanadium in the black rocks has economic and environmental impacts.In sediments,it is broadly dis-seminated as a multiva......
Effect of ethanedioic acid functionalization on Ni/Al2O3 catalytic hydrodeoxygenation and isomerizat
The effect of ethanedioic acid (EdA) functionalization on Al2O3 supported Ni catalyst was studied on the hydrodeoxygenat......
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Efficient selective dehydration of carbohydrates into 5-hydroxymethylfurfural and levulinic acid cat
Indium trichloride(InCl3)was first time used as the catalyst for conversion of fructose into 5-hydroxymethylfurfural(5-H......
Theoretical analysis of the conformational transformation mechanism of spiropyran:effects of charged
Besides the photochromism isomerization,the impact of the electrochemical conditions on the spiropyran/merocyanine(SP/MC......
A series of novel transition metal complexes(Pt(Ⅱ),Au(Ⅰ),Re(Ⅰ)and Ln(Ⅲ)based on organoboron functional ligands were ......
Photochromic Mechanism of a Bridged Diarylethene:Combined Electronic Structure Calculations and Nona
Intramolecularly bridged diarylethenes exhibit improved photocyclization quantum yields because the anti-syn isomerizati......
Molecular-Level Insights into N-N π-Bond Rotation in the pH-Induced Interfacial Isomerization of5-Oc
In situ and real-time characterization of molecular structure of pH stimuli-responsive assembling systems at interfa......
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The trans–cis photoisomerization reactions of azobenzene and its derivatives are of considerable interest.In this work,......
Highly Stereoselective Positional Isomerization of Styrenes via Acid-Catalyzed Carbocation Mechanism
The first transition metal-free highly stereoselective positional isomerization of various a-alkyl styrenes through a ca......
该文通过将低温C 18色谱柱和C 30色谱柱组合构建了可用于番茄红素异构体纯化的正交分离方法。研究表明,当色谱柱温低于-20℃时,普......
传统合成热力学不稳定的Z-式烯烃的方法往往都需要使用高能量的试剂,通过动力学来进行控制,反应条件较为苛刻,操作复杂,原子经济性......
Nine isomers, twenty transition states, and some relative dissociation fragments of [C,N,N,P] system were located at the......
Some stationary points on the potential energy surface of [Si, N, N, P] system were located at the B3LYP/6-311G(d) and Q......
Exogenous bridge and tautomer effects on magnetic interaction of binuclear copper(II) complexes of μ
Four enol-form binuclear copper complexes with different exogenous bridges, [Cu2(L)(μ-Cl)] (1), [Cu(L)(μ-N3)]· DM......
The potential energy surface of HPO2 system including eight isomers and twelve transition states is predicated at MP2/6-......
Fifteen isomers of [Si,N,C,O]2+ system are obtained at UB3LYP/6-311G(d) and UCCSD(T)/6-311+G(2df) (single-point) levels.......
Isomerization of n-pentane catalyzed by amide-AlCl3-based ionic liquid analogs with various additive
The isomerization of n-pentane to generate high-quality blending components for clean gasoline was catalyzed by several ......
Stability study on an anti-cancer drug 4-(3,5-bis(2-chlorobenzylidene)-4-oxo-piperidine-1-yl)-4-oxo-
CLEFMA, 4-(3,5-bis(2-chlorobenzylidene)-4-oxo-piperidine-1-yl)-4-oxo-2-butenoic acid, is a new chemical entity with anti......
Stereoselective isomerization of α-alkyl styrenes is accomplished using a new iron catalyst supported by phosphine-pyri......
Synthesis of Acrylonitriles via Mild Base Promoted Tandem Nucleophilic Substitution-Isomerization of
Main observation and conclusion We have developed an efficient synthesis of acrylonitriles via mild base promoted tandem......
Rh-Catalyzed Kinetic Resolution-Based Enantioselective [4+2]-Cycloaddition-Isomerization of Allene-1
The first example of Rh-catalyzed kinetic resolution of 1,3-disubstituted allene-1,3-dienes involving intramolecular[4+2......
用不同浓度的盐酸溶液对纳米ZSM-5分子筛进行脱铝改性,采用X-射线衍射(XRD)、X-射线荧光光谱(XRF)、扫描电子显微镜(SEM)、氮气物......
Hydrocracking diversity in n-dodecane isomerization on Pt/ZSM-22 and Pt/ZSM-23 catalysts and their c
Nobel metallic Pt/ZSM-22 and Pt/ZSM-23 catalysts were prepared for hydroisomerization of normal dodecane and hydrode-wax......
该文通过将低温C18色谱柱和C30色谱柱组合构建了可用于番茄红素异构体纯化的正交分离方法.研究表明,当色谱柱温低于-20 ℃时,普通C......
制备了Pt/SO_4~(2-)/ZrO_2-Al_2O_3(Pt SZA)催化剂,考察了Pt SZA在正己烷异构化反应中的失活与再生问题,并通过XRD、Raman、TG、IR......
Explanation of Theoretical Mechanism of Isomerization of L-Alanine Conformation for Experimental Res
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以松香为原料、盐酸为催化剂、95%乙醇为重结晶溶剂进行超声波强化松香树脂酸异构化反应研究.通过正交优化实验考察了反应温度、反......
采用MP2和密度泛函M06-2X方法,在6-31++G(d,p)基组水平上对烯丙基类不对称醚异构化反应机理进行了计算研究.揭示了其可能的反应途......
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本文通过对荣华二采区10...
Triethylamine-catalyzed Isomerization of Glucose to Fructose under Low Temperature Conditions in Aqu
Isomerization of glucose derived from lignocellulosic biomass is an important step in biorefinery. Fructose isomerized f......
采用一锅合成法通过调变自组装过程中硫酸和盐酸的体积比,成功制备了系列介孔SO2-/ZrO2-SiO2固体酸材料(Zr/Si物质的量为1.1).XRD......
采用脉冲微反装置评价了纯正丁烷、含有不同比例异丁烷的混合丁烷在Au改性的纳米HZSM-5催化剂上的反应活性和异构化选择性。结果表......
The catalyst NiW/HSAPO-11 was prepared by impregnating Ni and W onto HSAPO-11 zeolite with two different methods. The is......
Chloroaluminate ionic liquid catalyzed isomerization of n-pentane in the presence of product distrib
The ionic liquid Et3NHCl-2AlCl3 can catalyze the isomerization of n-pentane. This paper investigates the ionic liquid ca......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
A preparation process of 2-methylnaphthalene(2-MN) was proposed by isomerization, side-stream distillation and extractiv......
Role of support nature (γ-Al2O3 and SiO2-Al2O3) on the performances of rhenium oxide catalysts in th
The metathesis of ethylene and 2-pentene was studied as an altative route for propylene production over Re2O7/γ-Al2O3 a......
C5-C8烷烃异构化反应是提高汽油辛烷值的重要手段,已成为人们的研究热点.综述了近年来C5-C8烷烃异构化反应中应用的改性分子筛催化......
近年来,随着三元乙丙橡胶的广泛应用,作为其首选第三单体的亚乙基降冰片烯(ENB)越来越受到关注.综述了ENB的反应机理、合成工艺、......
过微乳液法负载Pt制备了Pt-S2O2-8/ZrO2-Al2O3 (Pt-SZA-X)催化剂,并采用XRD、BET、FT-IR、TPR、TEM等手段对催化剂进行了表征.以正......
采用“沉淀-浸渍”法制备一系列不同硫酸负载量的SO2-4/ZrO2-Al2O3催化剂,利用N2吸附-脱附、Py-FTIR、XRD等手段对催化剂进行表征.......
Synthesis of Di-substituted Proazaphosphatrane and Its Application in Carbon-carbon Double-bond Isom
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为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Effect of S Replacement on the Mechanism of Unimolecular Reactions for Ground-state Thioacetic Acid:
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
