The review is focused on the recent development of asymmertric synthesis of chiral epoxides by biocatalyzing prochiral alkenes. 手性环氧化物在合成上具有重要的应用价值。
A colorimetric method for epoxides, based on the reaction of the oxirane group with picric acid, is reportedly more sensitive than the oxirane test and is not subject to the shortcomings mentioned. 据报导以环氧乙烷与苦味酸的反应为基础的一种测定环氧化物的比色法比环氧乙烷试验敏感,并不具有所提到的缺点。
Study on the Coupling Reaction of CO_2 and Epoxides Catalyzed by Bifunctional Catalysts; Acid treatment of support on the performance of catalysts combined with heat storage function 双功能催化体系催化二氧化碳与环氧化合物的偶联反应研究载体酸处理对蓄热-催化双功能催化剂性能的影响
Alcoholysis of Epoxides and Aziridines Catalyzed by Quaternary Ammonium Bisulfate 硫酸氢季铵盐催化环氧化物和氮杂环丙烷的醇解反应
Study on kinetics of ADDITION-ESTERIFICATION reaction between carboxylic acids and epoxides 羧酸和环氧化合物加成酯化反应动力学的研究
It has been possible now to readily copolymerize CO2 with epoxides to form aliphatic polycarbonates. 它的一个有效利用方式是和环氧化物等单体共聚生成脂肪族聚碳酸酯。
The carbon dioxide copolymer is synthesized by the copolymerization of carbon dioxide and epoxides, which is a kind of biodegradable and thermoplastic polymer material. 二氧化碳基树脂系以工业废气二氧化碳为主要原料,经聚合反应制成的一种热塑性全生物降解高分子材料。
Phenyl or polyphenyl substituted epoxides serve as excellent precursors to phenyl or diphenyl carbenes. 某些苯代或多苯环氧化物是制取带苯环或二苯碳烯的极好原料。
Study on the Catalytic Properties of the Amino Acid-based Ionic Liquid and Cinchona-derived Quaternary Ammonium Salt in the Coupling Reaction of Carbon Dioxide and Epoxides 氨基酸离子液和金鸡纳碱季铵盐催化二氧化碳与环氧化合物的偶联反应研究
Progress in Copolymerization of Carbon Dioxide with Epoxides Catalyzed by Metalloporphyrin System CO2与环氧化合物聚合反应的金属卟啉催化体系研究
Cinchona-Derived Quaternary Ammonium Salts-Improved Asymmetric Cycloaddition of CO_2 to Epoxides 金鸡纳碱季铵盐促进的CO2与环氧化合物的不对称环加成反应
Study on NHC-CO_2 for the Coupling of Carbon Dioxide with Epoxides NHC-CO2催化CO2与环氧化物环加成反应的设计与研究
The industrial synthesis of certain optically active intermediates, including chiral amino acids, carboxylic acids, alcohols, amines and epoxides is reviewed. 重点叙述了某些光学活性中间体的工业合成技术,包括手性氨基酸、手性羧酸、手性醇、手性胺和手性环氧化物。
Coupling of Epoxides with Carbon Dioxide Catalyzed by Ruthenium Porphyrin Complex 钌卟啉络合物催化二氧化碳与环氧化合物偶联反应
Studies on Catalytic Properties of Heteropoly Compounds ⅱ. Etherification of Olefin Epoxides with Benzyl Alcohol Catalyzed by 12-Mo-and 12-W-Heteropolyacids 杂多酸催化性能的研究&Ⅱ.12-钼和12-钨杂多酸催化烯烃环氧化物与苯甲醇的醚化
The present paper covers the catalyst activity of solid acid AlCl_3, FeCl_3 and Fe_2 ( SO_4)_3 used in the additive-esterification of carboxylic acids and epoxides, and studies on the orientational selectivity of the reaction. 本文考察了固体酸FeCl2,AlCl2,Fe2(SO4)3,在羧酸与环氧化合物加成酯化反应的催化活性,并研究了反应的取向。
Biological synthesis methods of epoxides offer some special advantages comparing with conventional chemical methods. 与以往化学合成方法相比,手性环氧化物的生物合成有其独特之优点;
And 2) of the pyrolytic products, there were key flavor compounds and there were ( epoxides) and polycyclic aromatic hydrocarbons which molecular weights were higher than vanillin. 在香兰素裂解产物中,既有重要的香味成分,也有分子量比香兰素大的环氧化合物和稠环芳烃。
This article introduces deposition process of parylene, properties of parylene, applications of parylene and parylene deposition equipment. The properties are compared with those reported for other conformal coating materials such as epoxides, silicones, and urethanes. 简述了Parylene涂层的性能,对Parylene涂层的沉积过程、沉积设备和Parylene涂层的应用领域进行了论述,并对Parylene涂层的性能与环氧树脂、有机硅树脂、聚氨酯涂层的性能进行了比较。
The epoxides are more and more important in organic synthesis. Their ring opening reactions can be used for preparing polyfunctional or other cyclic compounds. 环氧烷化合物的开环反应可以用来合成其它方法难以合成的多官能团化合物,或通过开环和修饰合成其他环状化合物。
Polycarbonate synthesized from carbon dioxide and epoxides has much significance in polymer synthetic chemistry, utilization of carbon resources and environment protection. 利用二氧化碳与环氧化合物来合成聚碳酸酯,对于高分子合成化学、碳资源利用和环境保护都具有重大意义。
Chiral epoxides and cyanohydrins are very important and useful synthetic intermediates. 手性环氧化物和手性氰醇是用途非常广泛的重要合成子。
Chiral terminal epoxides are important building blocks in organic synthesis, the status and needs of which is increasingly prominent in the preparation of bioactive compounds. 手性末端环氧化合物是有机合成的重要砌块,在生物活性化合物制备中的地位与需求日益突出。
A remarkable variety of catalysts, especially non-oxidative and low valent oxidative transition-metal complexes, have been continuously explored for the CO2/ epoxides coupling reactions over the past decades. 在过去的几十年中,用于CO2/环氧化物耦合反应的各种类型催化剂被人们不断地探索研发,尤其是非氧化态和低价氧化态过渡金属配合物。
This article mainly discussed the cycloaddition reaction of carbon dioxide and the epoxides for the synthesis of cyclic carbonates, and the research progress. Meanwhile, we designed and synthesized an efficient, simple, recyclable and reusable catalytic system. 本文主要论述了CO2与环氧化合物合成环碳酸酯的环加成反应及其研究进展,并设计及合成高效、简单、易于回收、能循环利用的催化体系。
This thesis was mainly focused on the photoinduced electron transfer catalyzed cycloaddition reaction of aryl-substituted epoxides with olefins. 本论文主要介绍了环氧化合物和烯烃的光诱导电子转移环加成反应的研究。
The production of polycarbonates by the alternating copolymerization of Carbon dioxide and epoxides having typical green polymerization characteristics. CO2与环氧烷烃交替共聚生成聚碳酸酯的反应具有典型的绿色聚合特征。
One of the promising methodologies in chemical CO2 fixation is the cycloaddition between carbon dioxide with epoxides to afford the five-membered cyclic carbonates. 在CO2化学固定方面,利用二氧化碳和环氧化物环加成得到五元环状碳酸酯是最具前景的方法之一。
Next, the applications of epoxides in organic synthesis have also been reviewed. 然后,对环氧化合物在有机合成中的应用进行了综述。