在室温下，二茂铁甲酰基异硫氰酸酯与芳香胺反应生成新颖的二茂铁取代非对称硫脲。
At room temperature, several novel unsymmetric ferrocenyl thiourea compounds were synthesized by reaction of substituted aniline with ferrocenyl formyl isothiocyanate.
重点介绍了金属茂的合成方法及环戊二烯环上的取代基、溶剂对合成及分离旋光性金属茂的影响。
The synthesis of metallocene, the effects of substitution in cyclopentadiene ring, reaction medium for synthesis and separation of chiral metallocene have been highlighted.
本文用自由基捕捉剂与esr相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.
丙酰基二茂铁和4-取代氨基脲反应制得8个相应的缩氨基脲1～8，它们均属首次制得。
Propionyl ferrocene reacted with 4-substituted semicarbazides converted into corresponding semicarbazones 1-8, which are not prepared previously.
结果表明，对邻苯二甲酸酯类化合物而言，取代基的空间结构参数是影响受试物好氧生物降解性能的重要因素。
The result showed that the steric factors of substituents were important parameters affecting the aerobic biodegradability of the tested compounds.
本发明涉及取代基戊二酸酐的制备方法。
This invention relates to a preparation method of substituent glutaric acid anhydride.
比较发现，茂环上的取代基越大越有利于二茂铁基阳离子与多阴离子之比小的电荷转移盐的形成。
The experiments show that large substituent group on Cp is favorable to the formation of CTSs with low ratio of ferrocenyl:POM.
利用ZINDO/SOS方法，从理论上研究了对称和不对称取代两种情况下，取代基对二噻吩并噻吩衍生物单双光子吸收性质的影响。
In order to investigate the effect of substituents on the two-photon absorption properties(TPA), the one-and two-photon absorption properties were theoretically studied by using ZINDO/SOS method.
取代酰基- 4 -磷酰基氨基硫脲及其1,3,4 -恶二唑杂环衍生物的合成。
The Synthesis of l-acyl-4-phosphoryl Thiosemicarbazides and Their Heterocyclic Derivatives of 1, 3, 4-oxadiazoles.
以2，7-二溴芴酮为原料，在芴的9位引入三苯胺等芳香取代基代替烷基取代基，增加9位的稳定性。
Starting from 2,7-dibromofluorene, two aryl substituents were introduced to the 9position of fluorene to replace the commonly used alkyl groups to increase the stability of fluorene.
以溴戊烷、溴己烷、1，2-二溴乙烷和亚磷酸三甲酯为原料，分别合成了戊基、己基、溴乙基取代的三种膦酸二甲酯化合物。
In this paper, three alkyl substituted dimethyl phosphonates have been synthesized by trimethyl phosphite with 1-Bromopentane, 1-Bromohexane and 1,2-Dibromoethane.
目的研究4（2 0 ）双键5 / 7/ 6型紫杉烷类二萜化合物的质谱裂解特征，以及取代基种类及位置对质谱裂解的影响，探讨该类化合物的质谱裂解规律。
AIM To investigate the fragmentation behavior of three 4(20) methylene 5/7/6 type taxoids, and the influence of types and positions of the substituents on fragmentation.
结果表明，尽管这些二甲基萘的电离能基本相同，但因取代基位置不同使分子中电荷分布不同，从而影响了激基复合物的形成能力。
Although the ionization potentials of dimethyl naphthalenes used was almost the same yet the charge distribution was different due to the different positions of two methyl groups on naphthalene. Th…
结果表明，尽管这些二甲基萘的电离能基本相同，但因取代基位置不同使分子中电荷分布不同，从而影响了激基复合物的形成能力。
Although the ionization potentials of dimethyl naphthalenes used was almost the same yet the charge distribution was different due to the different positions of two methyl groups on naphthalene. Th…
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