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- tetramethylene imine 环丁亚胺,四亚甲基亚胺
- R is tetramethylene, pentamethylene, or hexamethylene. r为四甲撑、五甲撑或六甲撑。
- The suitable organic imine reactants have a variety of compositions and structures. 合适的有机亚胺反应剂具有多种组成和结构。
- The alternative use of buffered silica gel resulted in modest hydrolysis (~5-10%) of the imine. 选用温和的水解导致缓冲硅胶(~5-10%25)的亚胺.
- On the basis of this, 1,3-dipolar cycloaddition reactions were studied using imine esters as the starting marerials. 在此基础上以氨基酸酯亚胺类化合物为原料主要研究了1,3-偶极子环加成反应。
- Metal salts and Carboxy, keto, aldehyde, acetoacetoxy, complexes phosphonic acid, imine, amino and thio. 金属盐类和羧基,酮,醛,乙酰乙酸,配合膦酸,亚胺,氨基酸和硫代。
- The influence of the loading of iodine, reaction solvent, the structure of imine and enol ethers was studied. 详细考察了碘的用量、反应溶剂、亚胺和烯醇醚的结构对反应的影响。
- The comparison between three stationary phases of different hydrophobicity, such as polyethylene glycol, tetramethylene glycol and phenyl, was made. 对还原变性Lys在3种疏水性不同的色谱柱上的复性情况进行了考察
- The application of polyethylene imine to the coating white board production can inprove thefilterabilitry of pulp and the stiffness of the board. 聚乙烯亚胺应用于涂布白板纸的生产,以改善纸浆的滤水性能,提高板纸挺度。
- In addition, it is possible to form an imine intermediate in this reaction, which seems more like a by-product from our calculation. 理论上,反应过程中还有可能生成亚胺类化合物,但计算结果表明其为副反应。
- The conclusion is that PAN and nano-TiO2 were composed effectively, and it is possible that bonding action occurred between imine N and Ti. 分析表明,PAN与纳米TiO2有效的复合在一起,聚苯胺主链中的亚胺氮与Ti之间发生键合作用。
- And two new segmented poly(urethaneureas) were prepared from poly(tetramethylene glycol)(PTMG) or polyadipate of 1,4 butanediol(PBA), MDI and Urea(as chain extender). 通过对聚氨酯脲及其硬段模型化合物的结构与性能的研究,发现这种体系有高相分离程度、高氢键密度的特点,并暗示了三维氢键网络结构的存在。
- Our manufactory mainly produces copper and aluminum covered wire, also the single copper and aluminum wire, polyester and imine covered wire, cotton and paper covered wire. 我厂除主要生产铜,铝玻璃丝包线外,还生产光身铜、铝线材,聚酯亚胺包线(俗称:黄金薄膜包线)、纱包线、纸包线等。
- Abstract: Bridged imine acetamide was synthesized via the reactions such as triacetylation,bridge formation,reduction and acetylation,using Ery A oxime as the starting material. 摘 要: 以红霉素肟为起始原料,经三乙酰化、桥化、还原、乙酰化四个步骤合成桥红霉素亚胺,总收率28%25。
- Methods The cure for 29 patients who were diagnosed Tetramethylene Poisoning was retrospectively analyzed, the suitable project of diagnosis and treatment were studied out. 方法对29例确诊为毒鼠强中毒的病人救治进行回顾性分析,拟定合适的诊治方案。
- Rigid,planar structures have been modified through incorporation of new additional groups to generate sharp-persistent imine macrocycles in very high yields. 我们设计并合成了一类氢键诱导下构象受限的芳酰胺寡聚体,以此模块作为前体,利用动态共价键的方法,高产率(80%25-89%25)地合成了一系列新的亚胺大环。
- IR is often used to investigate the reaction of thermal imine because the groups of amido acid and imide possess characteristic IR spectroscopy and IR method has the merits of simpleness, convenience and speediness. 由于红外光谱法具有简单、方便、快速等特点,酰胺酸、酰亚胺基团又有着特定的红外吸收峰,因而成为研究热亚胺化反应最常用的测试方法。
- The polyester type and polyether type waterborne polyurethane were synthesized by isophorone diisocyanate(IPDI),toluene diisocyanate(TDI),poly(1,4-butylene adipate) glycol(PBA),poly(tetramethylene glycol)(PTMEG),DEG,BDO,NPG and so on. 以异佛尔酮二异氰酸酯、甲苯二异氰酸酯、聚酯二醇、聚醚二醇、二甘醇、1,4丁-二醇和新戊二醇为主要原料,合成了聚酯型和聚醚型的水性聚氨酯。
- Schiff base is the Types of organic compounds which contain C-N double bond of the imine or azomethine group characteristics (-RC = N-).the early research focus on Amine Schiff base reduction. 席夫碱主要是指含有碳氮双键的亚胺或甲亚胺特性基团 (-RC = N-)的一类有机化合物,早期的研究一般为缩胺类席夫碱。
- Objective:To observe clinical symptom of acute tetramethylene disulphotetramine(TETS) poisoning and to evaluate therapeutic effects of sodium dimercaptopropane sulfonate on TETS poisoning. 目的:观察急性毒鼠强中毒的临床表现,评价二巯丙磺钠对毒鼠强中毒的疗效。