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- 异丙基苯
- 更多网络例句与异丙基相关的网络例句 [注:此内容来源于网络,仅供参考]
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Isopropyl ether is an important intermediate for composing organism andindustrial solvent. It is widely used in medicine, baccy, chemical industrialcombination, environment protection and so on.
异丙醚,又称二异丙基醚、异丙基醚,是一种重要的有机原料和工业溶剂,广泛地应用于医药、烟草、化工合成、环保等领域。
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The influence of each condition on the reaction speed and yield was studied, and the optimal conditions were: the ratio of the amount of substance of aromatic amine and heptafluoro-isopropyl iodine was 1:1.1~1.5, the amount of substance of sodium dithionite, sodium bicarbonate, aniline compounds were respectively 1.1~1.3, the amount of substance of phase transfer catalyst TBAB and aniline compounds was 0.05~0.1, the concentration of aniline compound was 0.5~1.0 mol/L, reaction temperature was 10~20 ℃, and the solvent was aether.
最佳结果为:芳胺与七氟异丙基碘的物质的量比1:1.1~1.5,连二亚硫酸钠、碳酸氢钠与苯胺的物质的量分别为1.1~1.3,相转移催化剂四丁基溴化铵与苯胺的物质的量比在0.05~0.1,溶剂总用量使苯胺浓度在0.5~1.0 mol/L;反应温度10~20℃;溶剂采用乙醚。取代基供电子性越强,反应时间越短,产率越高;氨基的对位优先反应,氨基的邻位较难发生反应;且七氟异丙基总是优先取代在芳环电子云密度较高的位置上。
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Aniline compounds containing heptafluoroisopropyl was synthesized through taking sodium dithionite as evocating agent, and introducing heptafluoroisopropyl by free radical electrophilic substitution on benzene ring.
以连二亚硫酸钠为引发剂,在苯环上通过自由基亲电取代反应引入七氟异丙基,合成了一系列含七氟异丙基的苯胺类衍生物,研究了各种条件对反应的速度和收率的影响。
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Cephalotaxine ester of 2-oxo-6-methylheptanoic acid was treated with lithium diisopropylamide and Me O-(1-methoxyisopropyl)glycolate to give a mixture of homoisoharringtonine and its stereoisomers with 56% yield. The four stereoisomers separated by TLC showed identical mass spectra and almost superimposed IR but with different 1H NMR spectra. The configuration of the 2'-C and 3'-C of the four isomers were postulated based upon their 1H NMR spectra as compared with the 1H NMR spectra of isoharringtonine and its stereoisomers.
2-氧代-6-甲基庚酰基三尖杉碱(3)与0-(1-甲氧基异丙基)羟基乙酸甲酯(4)在强碱性试剂二异丙胺锂存在下,起亲核加成反应,反应中间体5在室温用酸性丙酮水解,得到一种新的三尖杉酯类生物碱一一高异三尖杉酯碱(6c)及其立体异构体(6a、6b、6d)的混合物,产率56%、通过制备薄层层析分得这四个立体异构体,它们的1H NMR和异三尖杉酯碱及其立体异构体的1H NMR类似,推定了它们的绝对构型。
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N-isopropylacrylamide, which has both hydrophilic acylamino and hydrophobic isopropyl, receives much concern in recent years due to its polymers showing favorable thermosensitivity and memory effect. It has been used extensively in drug delivery, material separation, enzyme immobilization and immunoanalysis.
N-异丙基丙烯酰胺同时具有亲水性的酰胺基和疏水性的异丙基,使其系列聚合物具有优良的温敏智能特性和记忆效应,目前已广泛应用于药物缓释、物料分离、免疫分析、酶的固定等领域。
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Mol/L and calcinations temperature at 500?℃. The solid superacid can be used as catalyst two times in the alkylation of naphthalene, and the total composition of MIPN,DIPN, and TIPN in product is over 98%. When the consumpt...
在催化剂用量为 10 %、反应温度为 160℃、反应时间为 2 5h的条件下连续两次使用SO2 - 4 TiO2 超酸催化萘对丙烯的烷基化反应,产品中一异丙基萘、二异丙基萘、三异丙基萘的总含量大于 98%。
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Fourteen new pyrethroids containing isoxazole were designed and synthesized from 4-isopropyl-3-substituted phenyl-5-hydroxyl isoxazoles as major material, whose structures were also characterized by IR, 1H NMR and elemental analysis.
以4-异丙基-3-取代苯基-5-羟基异噁唑和3-苯氧基苄基溴为原料,三乙胺为缚酸剂,设计并合成了14个未见报道的4-异丙基-3-取代苯基-5-异噁唑基-(3'-苯氧基)苄基醚。通过红外光谱、核磁共振、元素分析等手段,确证了它们的化学结构。
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The copolymer of N isopropylacrylamide and acrylamido azobenzene was synthesized for the study of the effect of the photoisomerization of a water soluble copolymer containing azobenzene groups on the photocontrolled release behavior of liposomes.
为了研究侧链含有偶氮苯基的水溶性共聚物的光异构化对脂质体内包容物的光控释放的影响,设计合成了N-异丙基丙烯酰胺和丙烯酰胺基偶氮苯的共聚物。
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It was confirmed that the 〓-CCT of phenyl isopropyl ether is formed on the benzene ring rather thanon the etheroxy bond. The 〓-CCT complex is not strong enough to induce charge transfer and converts to CTC because the isopropyl group is separated from the benzene ring by oxygen atom. As a result,〓 can not transfer from isopropyl to form radical in cage. Therefore phenyl isopropyl ether is difficult to undergo dark oxidation.
这是由于苯基异丙醚和异丙醚形成O〓-CCT的部位不同,苯基异丙醚的O〓-CCT形成在苯环上,与异丙基相隔一个氧原子,不足以诱发异丙基电荷转移而转化为CTC,也就不能有氢质子转移和笼式自由基的形成,因此难于发生暗氧化反应。
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As raw chemical materials, produce acetone, hydrogen peroxide, methyl isobutyl ketone, isobutyl ketone, 2-Propanol, diisopropyl ether and isopropyl alcohol ether, isopropyl chloride, isopropyl and fatty acids and fatty acid chloride as isopropyl.
作为化工原料,可生产丙酮、过氧化氢、甲基异丁基酮、二异丁基酮、异丙胺、异丙醚、异丙醇醚、异丙基氯化物,以及脂肪酸异丙酯和氯代脂肪酸异丙酯等。
- 更多网络解释与异丙基相关的网络解释 [注:此内容来源于网络,仅供参考]
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Cumene:异丙基苯
Ethylbenzene乙苯 | Cumene 异丙基苯 | Isobutylbenzene 异丁基苯
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isopropyl:异丙基
产生甲基磷酸异而二酯,之后再与氟化氢(hf)反应产生沙林(甲基氟膦酸异丙酯),这一类的有机磷化合物,随著接在磷上取代基稍微改变就可以决定此有机磷是否有毒性,见表一,由研究显示,一般在磷上,如果同时接上异丙基(isopropyl)与氟(fluorine),
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cuminic alcohol:对异丙基苄醇,枯茗醇
cumin alcohol对异丙基苄醇 | cuminic alcohol对异丙基苄醇,枯茗醇 | cuminyl alcohol枯茗醇
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isopropylacetic acid:异丙基乙酸
isoprenoid异戊二烯化合物 | isopropylacetic acid异丙基乙酸 | isopropylformic acid异丙基甲酸,异丁酸
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isopropylacetic acid; isovaleric acid:异丙基乙酸;异戊酸;异缬草酸
异丙基乙酰胺;异戊酰胺 isopropylacetamide; isovaleramide | 异丙基乙酸;异戊酸;异缬草酸 isopropylacetic acid; isovaleric acid | 异丙基乙炔;3-甲基丁炔 isopropylacetylene; 3-methyl-1-butyne
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isopropylamine dodecylbenzene sulfonate:十二烷基苯磺酸异丙基胺
十二烷基苄基二甲基溴化铵 lauralkonium bromide | 十二烷基苯磺酸异丙基胺 isopropylamine dodecylbenzene sulfonate | 十二烷基苯磺酸异丙基铵盐 isopropylamine dodecylbenzene sulfonate
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isopropylamine dodecylbenzene sulfonate:十二烷基苯磺酸异丙基铵盐
十二烷基苯磺酸异丙基胺 isopropylamine dodecylbenzene sulfonate | 十二烷基苯磺酸异丙基铵盐 isopropylamine dodecylbenzene sulfonate | 十二烷基苯磺酸三乙醇铵盐 TEA-dodecylbenzene sulfonate
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isopropylamine branched dodecyl benzene sulfonate:支链十二烷基苯磺酸异丙基铵盐
支链十二烷基苯磺酸异丙基铵盐,90% isopropylamine linear dodecyl benz... | 支链十二烷基苯磺酸异丙基铵盐 isopropylamine branched dodecyl benzene sulfonate | 支链十二烷基苯磺酸钠 sodium branched dodecylben...
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methyl isopropyl ketoxime:甲基异丙基酮肟
甲基异丙基酮半卡腙 methyl isopropyl ketone semicarbaz... | 甲基异丙基酮肟 methyl isopropyl ketoxime | 异硫氰酸甲酯;甲基芥子油 methyl isorhodanate; methyl isorhodanide; methyl isothiocyanate; methyl mus...
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isopropyl xanthogen disulfide:二硫代二异丙基黄原酸酯
isopropyl myristate 肉豆蔻酸异丙酯 | isopropyl xanthogen disulfide 二硫代二异丙基黄原酸酯 | isopropylmethoxamine 异丙甲氧明