• 同时,对烯化反应所表现出的高度立体选择性作合理解释。

    Also, the high stereoselectivity of the Wittig olefination has been well rationalized.

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  • 实验发现,1,4-二苯基1,3-丁二等多聚烯化合物共振光子(NRTP异构强烈依赖于光波长

    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.

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  • 其次对双羟基醚的丙基反应进行研究,讨论了反应时间、反应温度、聚醚分子量、丙基试剂种类用量对反应的影响

    The terminal allylation reaction was studied which was influenced by reaction time, reaction temperature, category and dosage of allylation reagent and molecular weight of polyether.

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  • 本文循环经济绿色理念出发,研究橙皮提取柠檬无害提取方法。

    This article is based on cycling economy and green chemistry theory, and studies two kinds of green extracting limonene from the peels of oranges.

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  • 一个含有基的中心分子开始重复进行作用作用的过程可以获得硅原子作为的碳硅烷树形分子

    Starting from a core molecule possessing alkenyl groups and repeating the hydrosilylation step and alkenylation step, a carbosilane dendrimer with Si-atoms as branching pointing was obtained.

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  • 本文报道络合物炔烃烷基加成,合成多取代烃,产率较高。

    This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.

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  • 论文主要研究了水相中无机盐二氧促进羰基合物丙基反应

    This dissertation studied allylation reactions of carbonyl compounds promoted by inorganic salts or carbon dioxide in aqueous media.

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  • 考察用量、反应物初始浓度反应时间溶剂冰片光敏异构反应的影响

    The effects of concentration of sensitizer, initial concentration of norbornadiene, reaction time and solvents on conversion of norbornadiene and selectivity of quadricyclane were investigated.

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  • 研究了在固体强碱下由乙冰片异构制取乙叉降冰片工艺方法条件

    The preparation method and technological conditions of ethylidennorbornene with the method of isomerization of vinylnorbornene are studied with the catalyst of solid super alkali.

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  • 研究了苯磺酸型树脂异戊甲醇,考查了温度、醇比和空速对反应的影响

    The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.

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  • 本文合成丙基酚醛树脂双马来酰亚胺共聚通过FTIRDTA进行了性能表征

    Allyl ether phenolic resin was synthesised, then it was copolymerized with bismaleimide. Its properties were characterized by FTIR and DTA.

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  • 在常压反应固定反应装置上进行,评价了1-十二烷基反应催性能。

    Their catalytic activities were measured by alkylation of benzene with 1-dodecene as model reaction in a slurry reactor under atmospheric pressure and fixed bed reactor.

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  • 通过丙基对手两次不对称加成合成了光活性的丙基新型手性二胺。

    A novel chiral diallylic diamine has been synthesized through double addition of allyl zinc bromide to chiral imines in this contribution.

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  • 基降冰片异构VNB转ENB选择性均接近100%。

    In the isomerization of vinyl norbornene, the conversion of VNB and selectivity of ENB are both almost 100%.

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  • 为研究如何减少上述共轭信息成分中的几何构型异构发生,作者制备了几种不同剂型进行了田间诱蛾试验

    To reduce isomerization and oxidation of above conjugated diene compounds, pheromone baits of different formulations and substrates were made and tested for their trapping efficiency in the field.

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  • 通过工业应用实现丁二加氢国产填补了国内空白

    With the industrial application, domestic industrialization of butadiene hydrogenation catalyst is realized, and domestic vacancy in this area is filled.

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  • 第二章中,通过理论计算对金催溴代连二环异构反应的机理进行了研究讨论

    In the second chapter, the mechanism of the gold-catalyzed cycloisomerization of bromoallenyl ketone was investigated and discussed.

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  • 现存用来构建这些重要合成生物分子的方法中,金属促进的羰基合物丙基丙基最容易方便的。

    Among the existing means to construct these synthetically and biologically important molecules, metal-mediated allylation and propargylation is one of the easiest and most convenient.

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  • 综述最近几年来,功能富勒有机分子共轭高分子金属配合发光材料国内外研究状况应用

    The recent progress and application of functional fullerene organic luminescent materials , including low molecules, conjugated polymers and rare metal complexes , are reviewed in this paper.

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  • 1990年日本实现环已水合制环已醇工业

    The process of hydration of cyclohexene to prepare cyclohexanol was industrialized in Japan in 1990.

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  • 详细考察温度和活时间以及反应温度和反应时间、溶剂用量丙基醚反应的影响。

    A lot reaction factors, involving activation temperature, activation time, reaction temperature, reaction time, the amount of solvent, were investigated in detail.

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  • 免疫组鉴定神经元酶(NSE)、神经丝蛋白NF)、胶质纤维酸性蛋白GFAP)的表达

    Neuron-specific enolase(NSE), neurofilament(NF), and glial fibrillary acidic protein(GFAP) were detected by immunohistochemistry.

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  • 针对精馏过程,围绕减缓问题,采用过程数学模拟试验研究相结合的方法,考察了进料苯物质的量比对过程结果和催剂失活的影响。

    In this paper, the research on the catalytic distillation process of alkylation of benzene with ethylene, aiming at slowing down the deactivation of the catalyst, has been reported.

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  • 研究了无机盐促进羰基丙基反应

    Inorganic salts were found to promote the allylation reaction of carbonyl compounds with allyl bromide.

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  • 本文以生物质资源蔗糖为原料,通过丙基反应制备了丙基蔗糖。

    Allylsucrose was prepared by allyl etherification from sucrose which is biomass resource.

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  • 近几年来,已有一些有关不同手段石墨石墨进行改性功能报道包括有机无机功能

    There have been some reports about the modification or functionalization of graphene or graphene oxide by various methods in recent years, including organic and inorganic functionalization.

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  • 近几年来,已有一些有关不同手段石墨石墨进行改性功能报道包括有机无机功能

    There have been some reports about the modification or functionalization of graphene or graphene oxide by various methods in recent years, including organic and inorganic functionalization.

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