对相转移催化合成2-戊叉环戊酮及其异构化的条件进行了研究。
The synthetic conditions of 2-pentylidene cyclopentenone using PTC were stud-ied, and the conditions of isomerization were also studied.
异构数据源的合成是数据集成的一项重要功能，功能涉及数据冲突解决、数据复制和复杂的数据源交并差运算等。
Heterogeneous data synthesis is an important function of data integration. It involves data conflict resolution, data replication and more complex operation such as join, merge and difference.
可以使用立体选择或立体专一的合成方法，或者外消旋混合物的分离，来获得单独的光学异构体。
Use of stereoselective or stereospecific synthetic methods or separation of racemic mixtures can be used to obtain individual optical isomers.
采用牛肝酯酶拆分紫杉醇侧链合成中生成对映异构体化合物的新方法。
A novel enzymatic resolution of an enantiomeric mixture, from the synthesis of side chain of taxol, using beef liver esterase is described.
在以合成的分子筛为基质所制备的催化剂上进行了丁烷异构化和一步异构脱氢反应。
The catalytic performance of the synthesized molecular sieves, modified by Pd or Pt, for isomerization and dehydroisomerization of n butane was investigated.
在太阳能转换与储存体系中，降冰片二烯光异构化合成四环烷是非常重要的一个反应。
In the solar energy transfer and storage system, the isomerization of norbornadiene and quadricyclane is an important reaction.
综述了钌催化剂催化的主要几类有机合成反应，包括氢化、氧化、异构化、复分解。
Several kinds of ruthenium - catalyzed organic reactions were reviewed: hydrogenation, oxidation, isomerization, metathesis.
以异构十三醇和氨气为原料，采用金属氧化物为催化剂合成了异构双十三胺。
Iso-ditridecylamine was synthesized by using iso-tridecanol and ammonia as raw materials and metal oxides as catalyst .
合成了一种新的双冠醚，氧化偶氮双苯并15 -冠- 5。初步探讨了它的光异构现象及其对稀土和碱金属离子的萃取能力。
Azoxybisbenzo-15-crown-5 was synthesized. Photoinduced trans-cis isomerization as well as its ability to extract alkali metals and rare earth metals' were dis-cussed.
不对称合成是当代有机合成的热点，不对称催化方法是获取单一异构手性化合物最具有前景的方法之一。
Asymmetric synthesis is the hot point of organic synthesis in recent years. Asymmetric catalytic method is one of the most prospective methods to obtain pure chiral compounds.
由于在侧链的合成中，有手性碳原子发生了构型翻转，因此我们合成了一个相应的多利培南光学异构体，以利于质量控制。
Due to the configuration inversions of chiral carbon in the synthesis of side chain, we synthesized the corresponding optical isomer of doripenem for quality control.
本文介绍了合成这类化合物的一些方法，尤其是选择性制备c 22r异构体的方法。
In this article, some methods to prepare this kind of compounds are described, especially the methods to selectively prepare the C22R epimer.
丁烯乙烯的三种气态同分异构体之一，C4H8，主要用于制造合成橡胶。
Any of three gaseous isomeric ethylene hydrocarbons, C4H8, used principally in making synthetic rubbers.
甘露醇和山梨醇是一对同分异构体，在化学合成法生产甘露醇时，所产生的山梨醇母液，不可避免的含有部分甘露醇。
Mannitol and sorbitol is a pair of isomer, when mannitol was produced by chemical synthesis, it is ineluctability that there is some part of mannitol retained in the byproduct liquid of sorbitol.
报道了以烷基苯磺酸甲酯催化异构亚磷酸三甲酯合成甲基膦酸二甲酯。
The synthesizing of dimethyl methyl phosphonic acid ester with trimethyl phosphite was catalyzed by methyl alkylbenzenesulfonate.
研究了4-（2-甲氧基乙基）苯酚的合成工艺。改进了文献提出的工艺方法，初步解决了搅拌、异构体分离等方面存在的工艺问题；
The synthesis of 4-(2-methoxyethyl)phenol was studied and some technological problems were solved by adjusting the reaction conditions and the operation procedures.
不对称合成法：在化合物中形成两种不等数量的同分异构体的化学反应。
Asymmetric synthesis: Chemical reaction by which unequal amounts of two product isomers are formed.
因此合成原料来源广、价格便宜、易于合成、毒性低的某种浮选药剂的同分异构体，往往能筛选出较好的浮选药剂。
Therefore, some sort of flotation reagent's isomers with features of wide source, low price, easy to be synthetic, and low toxicity can always filter out the better flotation reagents.
在M - 2型复合丝光沸石催化剂上，研究了偏三甲苯液相非临氢异构化合成均三甲苯的工艺。
A new technology for synthesis of mesitylene from pseudocumene by liquid non-hydroisomerization on M-2 catalyst was studied.
本文合成一种具有互变异构性能的新型激光染料奇通红。
本文给出了金刚烷及其异构体合成物系毛细管气相色谱及色谱-质谱联用分析方法。
This paper describes a capillary GC and GC-MS analytical method for the synthetic adamantane and its isomers.
本发明合成的分子筛作为催化剂，可广泛用于烃类转化的催化反应中，如烃类的异构化和芳构化反应等。
The synthesized molecular sieve is catalyst used widely in the catalytic reaction of converting hydrocarbons, such as hydrocarbon isomerization and aromatization, etc.
立体化学研究立体异构体以及不对称合成法。
Stereochemistry deals with stereoisomers and with asymmetric synthesis.
立体化学研究立体异构体以及不对称合成法。
Stereochemistry deals with stereoisomers and with asymmetric synthesis.
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