Ring-opening相关论文
Cobalt-Catalyzed Enantioselective Ring-Opening Reactions of Oxa-and Aza-bicyclic Alkenes with Alkeny
Catalytic enantioselective ring-opening of oxa-and aza-bicyclic alkenes with readily available accessible alkenylboronic......
The present work explores the reaction pathways of γ-valerolactone (GVL) over a supported ruthenium catalyst.The conver......
Discrete ion-pair complexes [Ln(EDBP)2(DME)Na(DME)3] [Ln=Er (1), Yb (2), Sm (3)] have been synthesized by the reaction b......
Kinetics and mechanism studies on scandium calix[6]arene complex initiating ring-opening polymerizat
Scandium p-tert-butylcalix[6]arene complex has been synthesized from scandium isopropoxide and p-tert-butylcalix[6]arene......
Ring opening [3+2] cyclization of azaoxyallyl cations with benzo[d]-isoxazoles:Efficient access to 2
A selective ring-opening [3+2] cyclization reaction of benzo[d]isoxazoles with 2-bromo-propanamides hasbeendeveloped.The......
Transition-metal catalyzed C-C bond activation is a formidable challenge owing to the high bond energy.We report here a ......
开发了一种铂催化氧杂二环烯烃与芳基磺酰肼的顺式-立体控制开环反应.该方法显示出高效性和良好的官能团耐受性,在温和条件下能以......
Two calixarene derivatives (2a, 2b) have been synthesized and used as macro,initiators to prepare starshaped poly(ε,cap......
本文通过对荣华二采区10...
Synthesis and Unexpected Ring-opening Reaction of a New TADDOL Analogue with Chiral Cyclopropane Rin
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......
(Salen)Ti(Ⅳ)-Catalyzed Asymmetric Ring-opening of meso Epoxides Using Dithiophosphorus Acid as the N
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......
An approach to synthesis of (Z)-2-chloro-l,3-diarylpropen-l-ones by Vilsmeier reagent (bis-(trichlor
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......
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......
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......
Enantioselective Ring Opening of meso-Epoxides with Aromatic Amines Catalyzed by Dinuclear Magnesium
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......
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......
Synthesis and Acid-Catalyzed Cyclization of 2-Alkenylstilbenes:a New Approach to the Substituted Ind
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......
Monomer-activated Copolymerization of Ethylene Oxide and Epichlorohydrin: In Situ Kinetics Evidences
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......
1 Introduction Cyclic carbonates e.g. ethylene- and propylene carbonate undergo ring-opening polymerization (ROP) at ele......
The reactions of imidates including cyclic imidates, oxazolines and dihydrooxazine with phenoxyacetyl chloride, were inv......
(Salen)Ti(Ⅳ)-Catalyzed Asymmetric Ring-opening of meso Epoxides Using Dithiophosphorus Acid as the N
The asymmetric ring-opening of epoxides with dithiophosphorus acids catalyzed by a (salen)Ti(Ⅳ) complex formed in situ ......
Synthesis and Unexpected Ring-opening Reaction of a New TADDOL Analogue with Chiral Cyclopropane Rin
Synthesis and ring-opening reaction of TADDOL analogue with cyclopropane as chiral backbone were described. A plausible ......
In this work, the preparation of α, ω-dichloride-terminated multi-vinyl branched siloxane 1 (yield: 57.1%) used for se......
An approach to synthesis of (Z)-2-chloro-l,3-diarylpropen-l-ones by Vilsmeier reagent (bis-(trichlor
A series of (Z)-2-chloro-l,3-diarylpropen-l-ones were unexpectedly synthesized in moderate yields by treatment of easily......
以廉价易得的苦参碱为起始原料,经开环、酯化、水解等步骤,得到4-((3aS,3aS,10aR)-2-(叔丁氧基羰基)十氢-(1H,4H)-吡啶并[1,6]萘啶......
稀土乙酰丙酮盐催化聚合ε－己内酯和丙交酯刘建飞，沈之茎，孙俊全（浙江大学高分子科学与工程系杭州３１００２７）关键词ε－己内酯，丙交酯，稀土乙酰丙酮盐......
分析了未来芳烃可能过剩的原因,综述了芳烃催化加氢裂解制备乙烯裂解原料相关的芳烃饱和技术以及环烷烃开环技术,指出利用该途径实......
介绍一种采用环醚、碘和硅烷为原料,通过环醚的开环反应,高效合成卤代醇的方法.在室温下无需使用溶剂和催化剂,通过碘、硅烷和环氧......
聚苯硫醚（PPS）工业化生产中除了获得PPS外，还会产生较多的副产物，如氯化钠、低聚物等，其中副产的低聚物以浆料形式存在。这些副产物不能......
合成了Co Zn双金属氰化物 (DMC)络合物催化剂 ,以X 射线衍射、元素分析、红外光谱等手段进行了表征 ,考察了该催化体系下环氧丙烷......
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Spectral and Mechanistic Studies of the Reactions of Substituted 1,5- Benzothiazepine with Dichloroa
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目的设计合成并评价一种新的抗微生物药物四唑开环化合物3。方法 5-氨基四唑1和4-乙酰氨基苯磺酰氯2在碳酸钾存在下反应得到四唑开......
采用高压微型反应器，在压力为4．0MPa，温度260℃-350℃、氢油比为500：1、空速1．0h^-1条件下，研究了不同酸性载体HY-Al2O3，负载的铂(Pt)催化......
对环境的越来越多的关注，直接导致了燃料油的标准变得越来越严格．柴油中太高含量的芳香烃（尤其是多环芳烃）将导致其密度增大，颜色变暗，尾......
以八甲基环四硅氧烷(D4)为原料,在十二烷基苯磺酸(DBSA)催化下进行微乳液聚合反应,制得有机硅乳液.讨论了催化剂用量、乳化剂用量......
以4-羟基-2,2,6,6-四甲基哌啶氮氧自由基（HTEMPO）为引发剂,通过ε-己内酯（ε-CL）的开环聚合,合成末端基为氮氧自由基的聚己内酯（PCL-T）。......
以三（3，5-二叔丁基水杨醛缩苯乙胺）镧La（0PEBS）。为引发刺引发L-丙交酯（L-LA）和ε-己内酯（ε-CL）的共聚，可控合成嵌段共聚物．研究了单体加料顺......
以环己烷为探针分子,考察了Y-β复合分子筛负载贵金属Pt的加氢开环催化性能。结果表明,催化剂Pt/HY-β比Pt/HY具有更大的孔体积和......
Ring-opening polymerization of trimethylene carbonate (TMC) with a rare earth calixarene compound as catalysthas been st......
Ring-opening polymerization of trimethylene carbonate (TMC) with a rare earth calixarene compound as catalysthas been st......
SYNTHESIS, CHARACTERIZATION AND RING-OPENING POLYMERIZATION OF CYCLIC (ARYLENE PHOSPHONATE) OLIGOMER
A series of cyclic (arylene phosphonate) oligomers were prepared by reaction of phenylphosphonic dichloride (PPD) with v......
室温下,以水和乙醇作为反应介质,苯胺类化合物对环氧化合物发生非催化开环加成反应,合成了一系列β-氨基仲醇.此法具有条件温和,操......
（D, L）-Lactide （LA） was first polymerized with one component of rare earth cata-lysts [Nd（naph）<sub>3</sub>, Nd（oct）<sub>3</sub>......
POLYMERIZATION OF γ-STEARYL-α,l-GLUTAMATE N-CARBOXYANHYDRIDE USING RARE EARTH COORDINATION CATALYSTS
A rare earth coordination system was first investigated as a new type of catalyst for the ring-openingpolymerization of ......
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黄樟素氧化物与烷氧基钠和苯氧基钠反应,区域选择性地开环加成,生成1-烷(苯)氧基-3-(3,4-亚甲基二氧)苯基-2-丙醇.该系列化合物具......
TARTARIC ACID TEMPLATED SYNTHESIS OF MESOPOROUS Ti-INCORPORATED SILICA AND ITS CATALYTIC ACTIVITY FO
Ti-incorporated mesoporous silica materials with pore diameters of 3-4 nm have been prepared via the co-hydrolysis and c......
SYNTHESIS OF BLOCK COPOLYMER FROM 5,6-BENZO-2-METHYLENE-1,3-DIOXEPANE AND METHYL ACRYLATE VIA ATOM T
Poly(methyl acrylate)-b-poly(5,6-benzo-2-methylene-1,3-dioxepane) (PMA-b-PBMDO) was synthesized by twostep atom transfer......
A new kind of monomers was successfully synthesized by the reaction between 2-chloro methyl cycloketal and trimethylsily......
