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- Polysubstituted alkenes 多取代烯烃
- Little peroxides, computed by reactant alkenes 1‰, if put into jet fu... 添加极少量过氧化物,以反应烯烃计1‰,可以起到银片腐蚀抑制剂作用。
- It provides a useful vehicle for transforming unsaturated acids to their corresponding alkenes. 它为使不饱和酸变成相应的烯烃提供了一个有用的中间体。
- Four Polysubstituted Pyrrole N Methylene 1,3,4 Thiadiazoles were synthesized.The structure of related products have been discussed. 合成了一系列取代吡咯-N-亚甲基联1，3，4-噻二唑和相关化合物，并对其结构进行了分析和表征
- The process provides a facile way of producing hydrocarbl perchlorate from alkenes, cycloalkenes, aralkenes, alkanols, cycloakanols and aralkanols. 本文介绍了从链烯、环烯、芳链烯、链烷醇、环烷醇、芳烷醇来制备过氯酸烃基酯的方便方法。
- The process provides a facile way of producing hydrocarbyl perchlorates, from alkenes, cycloalkenes, aralkenes, alkanols, cycloalknols and aralkanols. 本工艺程序提供了从链烯、环烯、芳链烯、链烷醇、环烷醇、芳烷醇来制备过氯酸烃基酯的方便方法。
- Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines . 烟草的很多成分都会引起有机体突变以及致癌;如烯烃化合物;亚硝胺;多核芳香烃以及多环碳氢化合物和铵.
- Catalysis: Development of chirometallopor-phyrins as enantioselective oxidation catalysts of alkenes and sulfides. 催化作用：开发新型手性金属催化烯类及硫醚类之对映选择性氧化。
- Recent progress on asymmetric epoxidation of unfunctionalized alkenes by chiral catalysts was summaried. 综述了手性催化剂催化的不对称环氧化反应研究进展情况。
- The synthesis and application of vinylic tellurides in stereoselective synthesis of alkenes were reviewed. 综述了近年来烯碲化合物的合成及其在立体选择合成中的应用。
- Alkanes, alkenes, and alkynes are all hydrocarbons (compounds made up of hydrogen and carbon only). 链烷、链烯和链炔都是碳氢化合物（纯净的碳和氢所组成的化合物）。
- Naming of alkynes is very similar to the naming of alkenes, using the root name of the longest carbon chain. 选取同时含叁键和双键最长的碳链做母体，使双键位次尽可能最小。
- Epoxidation of alkenes is one of the most important reactions in organic, synthesis. 烯烃环氧化在有机合成中占有十分重要的地位。
- Alkenes have one or more double bonds between carbon atoms, where two pairs of electrons are shared. 链烯有一个或多个共价键，即碳原子分享两对电子。
- Based on the trends,it is important to decrease the content of alkenes in FCC gasoline. 随着对环保问题的日益重视,人们对燃料的要求也越来越高,降低FCC汽油中的烯烃含量迫在眉睫。
- The rate constants of radical and electrophilic addition to alkenes are dominated by different factors. 烯烃的自由基加成和亲电加成速率受不同的因素控制。
- Several polysubstituted biphenyl compounds containing four skeletons were firstsynthesized from ellagic acid via a reduction with DIBAL-H.The cytotoxicity activities of these compounds were evaluated against human tumor cells in vitro. 以鞣花酸为原料经关键的二异丁基氢化铝还原首次合成了数个拥有4个骨架的多取代联苯化合物,并对其人类肿瘤细胞毒活性进行了体外测试。
- Catalytic cracking of C4 alkenes to propene and ethene：Influences of zeolites pore structures and Si/Al2 ratios [J]. C4及C4+烯烃催化裂解生产丙烯/乙烯新工艺[C]，第十一届全国催化学术会议论文集，第十一届全国催化会议，杭州：浙江大学出版社，2002：297-298.
- A process in which an alkyl group is added to or substituted in a compound,as in the reaction of alkenes with alkanes to make high-octane fuels. 烷化作用，烷基取代向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料。
- A process in which an alkyl group is added to or substituted in a compound, as in the reaction of alkenes with alkanes to make high - octane fuels. 烷化作用，烷基取代向一种化合物中添加或用一个烷基团替代的过程，如用烯烃和烷烃发生反应以制得高辛烷值燃料
