查询词典 imino-ester
- 与 imino-ester 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Anilido-imino nickel complex 1 {(C6H3Me2-2,6)N=CH-5-NO2-C6H3N (C6H3Me2-2,6)}NiBr was first synthesized, and its catalytic behavior toward polymerizations of norbornene and ethylene in the presense of methylaluminoxane were investigated in detail. The complex activated with methylaluminoxane exhibited high activities for norbornene polymerization.
首次合成了苯胺基亚胺镍配合物1{(C6H3Me2-2,6)N=CH-5-NO2-C6H3N(C6H3Me2-2,6)}NiBr,研究了其在助催化剂甲基铝氧烷的作用下对降冰片烯、乙烯的均聚以及对降冰片烯和乙烯的共聚的催化性能。
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The results show that flotation separation rutile and almandine can be realized by using alkyl-imino-bismethylene phosphoric acid (ATF1024) as a collector and (NaPO3)6 as a regulator.
结果表明,以烷胺双甲基磷酸(ATF1024)为捕收剂,六偏磷酸钠[(NaPO3)6]为调整剂,可以实现金红石与石榴石之间的浮选分离。
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Three ways leads to the synthesis of fenclorin, one way discussed here has 3 steps. Stepl :benzonitrile using as raw material goes though dry hydrogen chloride and becomes a-imino phenylmethyl ether after meet carbinol.
解草啶的合成主要有三条路线,本文选取合成路线是以苯甲腈为原料,经三步反应而成:1、苯甲腈在干燥的氯化氢通入,与甲醇形成亚氨基苯甲醚,通入氨气后置换甲氧基得到苯基脒盐酸盐(收率76.18%)。2、苯基脒盐酸盐在碱性条件下与丙二酸二乙酯环合而得嘧啶醇(收率84.39%)。3、嘧啶醇在三氯氧磷中羟基被氯化得到产品解草啶(收率87.29%)。
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Iodine was found to be an efficient catalyst for the imino Diels-Alder reaction of N -arylimine with enol ethers to provide tetrahydroquinolines in good yields.
发现碘能够有效地催化N-芳基亚胺和烯醇醚之间的亚胺Diels-Alder反应,以较高的产率得到四氢喹啉衍生物。
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In addition, ioding was found to be an efficient catalyst for the imino Diels-Alder reaction of N-arylimine and enol ethers and the reaction provided tertrahydroqinolines in good yields. One pot synthesis of tetrahydroqinolines from aldehyde, aniline and enol ethers was also achieved using iodine as the catalyst. The chemical yield of the"one pot"reaction was comparable with that obtained using preformed N-arylimine.
此外我们也发现碘能够有效地催化N-芳基亚胺与烯醇醚的Diels-Alder反应,以很高的化学收率得到了四氢喹啉衍生物,并且发现碘也能够直接催化芳香醛、苯胺、烯醇醚的三组分"一锅"反应,获得的化学产率与使用预制的N-芳基亚胺相当。
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Originally techniques dropped formaldehyde into the mixture of phosphorous acid and monosodium of imino diacetic acid in high temperature. Owing to phosphorous acid is produced from phosphorus trichloride in industry by hydrolysis, inspissation and crystallization, if we use phosphoros trichloride directly on synthesize N- iminodiacetic acid, not only can simplify operation, but also can reduce the cost and save energy.
原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应,考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得,直接将三氯化磷用于双甘膦的合成,不仅可以简化操作过程,而且对于降低生产成本和能耗有明显意义。
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It is proved that the third state-transition state existed during the process of the configuration interconversion between the imino form and amino form , the energy is 43-60kcal/mol.
生测结果表明,所合成的化合物具有一定的昆虫飞行抑制能力和较好的杀菌活性,部分含氟的苯甲酰硫脲化合物具有速杀的杀虫活性。
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The preparation process of self-holing polyimide with organosilicon block includes the following steps: 1 the first reaction of polyacid anhydride in functionality not lower than 2, silicon oil with 2 or more amino or imino groups and polyamine with 2 or more amino groups, and the second reaction with one or several kinds of added isocyanate with 2 or more isocyanate radicals to produce sol of polyamido acid containing organosilicon block; 2 solidifying the sol to obtain solid polyamido acid containing organosilicon block; and 3 imidonating the solid to obtain self-holing polyimide with organosilicon block.
本发明公开了一种有机硅嵌段自发孔聚酰亚胺的制备方法,该方法包括以下步骤:(1)有机溶剂中具有大于或者等于2的酸酐官能团度的多酸酐与具有大于或者等于2的胺基或亚胺基的硅油以及具有大于或者等于2的胺基的多胺反应,随后添加一种或多种具有含有等于或者大于2个异氰酸酯基的异氰酸酯反应,生成含有机硅嵌段聚酰胺酸的溶胶。(2)溶胶固化制成有机硅嵌段聚酰胺酸固体。(3)固体亚胺化,即得有机硅嵌段自发孔聚酰亚胺。
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Imino-1, 3-thiazetidines is the basic structure of a kind ofbioactive herbicide and insecticide. Our method has advantage in synthesis highly substituted2-imino-1, 3-thiazetidines, therefore it has practical value to some extent. We also researched the reactions catalyze by active zinc dust.
提供了成四员噻吖丁啶杂环衍生物的方法。2-亚胺基-1,3-噻吖丁啶是一类具有生物活性的除草剂及杀虫剂的核心结构,我们的方法在合成多取代的2-亚胺基-1,3-噻吖丁啶方面有一定的优越性,从而具有一定的实用价值本文另一部分的工作是探讨锌粉催化的反应。
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It is the first time to observe the phenomenon of imino and amino form coexisted.
首次观察到了imino和amino形式在溶液中共存现象。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力