芳基类异戊二烯化合物被认为是高盐和强还原沉积环境中沉积有机质芳烃馏分中的特征性生物标志物。
Aryl isoprenoid compounds in the aromatic fraction of sedimentary organic matter have been regarded as a biomarker that indicates a saline and strongly reducing sedimentary environment.
冬凌草甲素是从冬凌草等植物叶子中提取出的一种贝壳杉烯二萜类化合物，具有好的抗肿瘤活性。
Oridonin anent-kaurene diterpenoid compound mainly isolated from the leaves of R. rubescen. Oridonin has been proved to possess good antitumor activity .
本论文主要研究了水相中无机盐和二氧化碳促进羰基化合物烯丙基化反应。
This dissertation studied allylation reactions of carbonyl compounds promoted by inorganic salts or carbon dioxide in aqueous media.
在流动系统中，用碳- 14标记化合物研究了丁二烯催化剂上的结焦过程。
The coke formation on butadiene catalyst was studied in a flow system by means of carbon-14-labelled compounds.
结果表明，重要的肉香味化合物（E，E）-2，4-癸二烯醛、2-乙基呋喃以及2-戊基呋喃被鉴定出；
Several important meat flavor compounds such as (E, E)-2,4-nonadienal, 2-ethyl-furan and 2-pentyl-furan were identified from Jin-Hua Ham.
综述了双桥连二环戊二烯基金属有机化合物的研究进展。
The progress on the study of doubly bridged bis(cyclopentadienyl) metal complexes is reviewed.
实验发现，芪，1，4-二苯基1，3-丁二烯等多聚烯化合物的非共振双光子（NRTP）异构化强烈地依赖于光波长。
The efficiency of the non resonant two photon (NRTP) isomerizations of stilbenes and 1,4 diphenyl 1,3 butadienes was found to depend strongly on the wavelength of the laser pulses.
合成了十八个二苯基戊二烯酮类化合物，并对其进行了一系列性质测试，包括红外、紫外、核磁共振、粉末X衍射、光声光谱及倍频性质等。
Synthesises eighteen kinds of cinnamylidene acetophenone derivatives and discusses their properties of IR, UV, photoacoustic spectrum , X ray diffraction and second harmonic generation (SHG).
其后的实验和理论研究表明类似石墨烯片层结构的其他材料，如六方氮化硼和二硫化金属化合物等，也可以形成类似的管状结构。
Latest experimental and theoretical studies demonstrate that it is quite possible that the nanotube structures can be prepared from other layered materials.
本发明公开了一类含杂环5-苯基-2，4-戊二烯酮类化合物及其制备方法与应用。
The invention discloses 5-phenyl-2, 4-pentadiene ketone compounds containing heterocyclic rings, a preparation method and application thereof.
羰基二硫缩烯酮类化合物1是一类重要的有机合成中间体其。
Oxo ketene dithioacetals 1 are a kind of versatile intermediates in organic synthesis.
本发明涉及一种用于制备链烯基化的羟化芳族化合物、苯并二氢吡喃化合物和其酰化衍生物的方法。
The present invention relates to a process for the manufacture of alkenylated hydroxylated aromatic compounds, of chroman compounds and of their acylated derivatives.
综述了双桥连二环戊二烯基金属有机化合物的研究进展。
The progress on the study of doubly bridged bis (cyclopentadienyl) metal complexes is reviewed.
用双马来酰亚胺和二烯丙基化合物反应制造了增韧树脂，研究了该树脂的固化和热稳定性。
The toughened BMI resins were made from the bismaleimides and o, o-diallyl bisphenol a and the analysis for the curing and thermal stability of the resins were also conducted.
以有机碱为催化剂 ，通过三唑三甲基丙酮与2 ，4-二氯苯甲醛的反应 ，合成了具有生物活性的外消旋体化合物烯唑醇。
By using alkalamides as the catalyst, diniconazole has been synthesized by the reaction of triazolyl-trimethylacetone and 2,4-dichlorobenzaldehyde.
以有机碱为催化剂 ，通过三唑三甲基丙酮与2 ，4-二氯苯甲醛的反应 ，合成了具有生物活性的外消旋体化合物烯唑醇。
By using alkalamides as the catalyst, diniconazole has been synthesized by the reaction of triazolyl-trimethylacetone and 2,4-dichlorobenzaldehyde.
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