同时,对该烯化反应所表现出的高度立体选择性作了合理解释。
Also, the high stereoselectivity of the Wittig olefination has been well rationalized.
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.
其次对双羟基聚醚的端烯丙基化反应进行研究,讨论了反应时间、反应温度、聚醚分子量、烯丙基化试剂的种类和用量对反应的影响。
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.
本文从循环经济、绿色化学理念出发,研究了两种从橙皮中提取柠檬烯无害化的提取方法。
This article is based on cycling economy and green chemistry theory, and studies two kinds of green extracting limonene from the peels of oranges.
从一个含有烯基的中心核分子开始,重复进行硅氢化作用和烯基化作用的过程可以获得以硅原子作为支化点的碳硅烷树形分子。
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.
本文报道了锆烯络合物对炔烃的烷基化加成,合成多取代烯烃,产率较高。
This paper reports the route of synthesis multisubstituted alkenes by addition reaction of alkyne zirconalkylation with zirconocene complexes.
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.
考察了敏化剂的用量、反应物初始浓度、反应时间和溶剂对降冰片二烯光敏异构化反应的影响。
The effects of concentration of sensitizer, initial concentration of norbornadiene, reaction time and solvents on conversion of norbornadiene and selectivity of quadricyclane were investigated.
研究了在固体超强碱催化下由乙烯降冰片烯异构化制取乙叉降冰片烯的工艺方法和条件。
The preparation method and technological conditions of ethylidennorbornene with the method of isomerization of vinylnorbornene are studied with the catalyst of solid super alkali.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化,考查了温度、醇烯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.
本文合成了烯丙基醚化酚醛树脂,并与双马来酰亚胺共聚,通过FTIR和DTA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.
在常压反应釜和固定床反应装置上进行,评价了催化剂对苯和1-十二烯烷基化反应催化性能。
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.
通过烯丙基溴化锌对手性亚胺的两次不对称加成,合成了光活性的双烯丙基化的新型手性二胺。
A novel chiral diallylic diamine has been synthesized through double addition of allyl zinc bromide to chiral imines in this contribution.
在乙烯基降冰片烯异构化中,VNB转化率和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%.
为研究如何减少上述共轭二烯信息素成分中的几何构型异构化和氧化的发生,作者制备了几种不同剂型的诱芯并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.
通过工业化应用,实现了丁二烯加氢催化剂国产化,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.
在第二章中,通过理论计算对金催化的溴代连二烯酮环异构化反应的机理进行了研究和讨论。
In the second chapter, the mechanism of the gold-catalyzed cycloisomerization of bromoallenyl ketone was investigated and discussed.
在现存的用来构建这些重要的合成子和生物分子的方法中,金属促进的羰基化合物烯丙基化和炔丙基化是最容易和最方便的。
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.
综述了最近几年来,功能化富勒烯有机小分子、共轭高分子和金属配合物发光材料的国内外研究状况及应用。
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.
1990年日本实现了环已烯水合制环已醇的工业化。
The process of hydration of cyclohexene to prepare cyclohexanol was industrialized in Japan in 1990.
详细地考察了活化温度和活化时间以及反应温度和反应时间、溶剂用量对烯丙基醚化反应的影响。
A lot reaction factors, involving activation temperature, activation time, reaction temperature, reaction time, the amount of solvent, were investigated in detail.
免疫组化鉴定神经元烯醇化酶(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.
针对苯烃化催化精馏过程,围绕减缓催化剂失活的问题,采用过程数学模拟与试验研究相结合的方法,考察了进料苯烯物质的量比对过程结果和催化剂失活的影响。
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.
研究了无机盐促进的羰基烯丙基化反应。
Inorganic salts were found to promote the allylation reaction of carbonyl compounds with allyl bromide.
本文以生物质资源蔗糖为原料,通过烯丙基醚化反应制备了烯丙基蔗糖。
Allylsucrose was prepared by allyl etherification from sucrose which is biomass resource.
近几年来,已有一些有关不同手段对石墨烯或氧化石墨烯进行改性或功能化的报道,包括有机和无机功能化。
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.
近几年来,已有一些有关不同手段对石墨烯或氧化石墨烯进行改性或功能化的报道,包括有机和无机功能化。
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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