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- chloromethyl cymene 氯甲基异丙苯
- Cefetamet pivoxil was synthesized from chloromethyl pivalate and 7?ADCA. 7?氨基?3?甲基?3?头孢烯?4?羧酸; 头孢他美;
- Objective: To study the simple synthetic methods of chloromethyl pivalate. 目的探讨合成特戊酸氯甲酯的简便工艺方法。
- Component: Pure water, Cymene, Active Surface Chemical Preparation, Anlistatig Chemical preparation etc. 成份:纯净水,异丙醇,进口表面活性剂,抗静电剂等。
- If his wit be not apt to distinguish or find differences, let him study the Schoolmen;for they are cymene sectors. 换言之,有只须读其部分者,有只须大体涉猎者,少数则须全读,读时须全神贯注,孜孜不倦。
- Preparation process of p cymene with gas phase catalytic dehydrogenation of industrial dipentene was studied and the following results were obtained. 对工业双戊烯气相催化脱氢制备对伞花烃进行了研究并取得了理想结果。
- METHODS The target compound was synthesized by the reaction of(S)-naproxen with chloromethyl ester of naproxen in the presence of K2CO3. 方法以(S)-萘普生为原料,与溴氯甲烷反应制得的(S)-萘普生氯甲酯,然后与萘普生钾盐反应得目标化合物。
- The title resin has been prepared by Friedel-Crafts acylation followed by bromination and amination.The method avoids the utilization of cancerogenic chloromethyl methyl ether. 通过付氏酰基化反应引入乙酰基,接着溴化、胺化,得到标题树脂。该法避免了使用氯甲醚。
- It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole. 另一种2-巯基苯并噻唑法是先将溴氯甲烷与硫氰化钠反应生成硫氰酸氯甲酯,然后硫氰酸氯甲酯与2-巯基苯并噻唑反应得到苯噻氰。
- A method was established for determining two intermediates in synthesis of imidacloprid,2 chloro 5 methyl pyridine and 2 chloro 5 chloromethyl pyridine by HPLC. 建立了用高效液相色谱法同时测定农药吡虫啉中间体2-氯-5-甲基吡啶和2-氯-5-氯甲基吡啶含量的方法。
- Several synthesis methods of chloromethyl ethyl ether were compared.A new method for the synthesis of chloromethyl ethyl ether from phosphorus trichloride was developed. 本文对氯甲基乙基醚的合成方法进行了比较,创新了一种用三氯化磷为原料新的合成方法。
- At the same time, three kinds of derivatives, i.e. 4,4'-biphenyldicarboxaldehyde, 4,4'-bis (hydroxymethyl) biphenyl and 4,4'-bis (chloromethyl) biphenyl were prepared from it. 继而以它为原料方便地合成了3种4,4'-二取代联苯衍生物:4,4'-联苯二甲醛、4,4'-二(羟甲基)联苯和4,4'-二(氯甲基)联苯。
- Cotton fabric is first treated with sodium chloromethyl sulfonate (CMSA) and then with cationized chitosan (CC) in order to improve its anti-crease property. 采用氯甲基磺酸钠(CMSA)使棉织物阴离子化,然后与阳离子壳聚糖(CC)离子交联对棉织物进行抗皱整理。
- The paper introduces the revamping design scheme of the primary cymene stripper (201E) in the m-cresol plant revamping project and puts forward the detailed design method of Linde sieve tray. 介绍了在燕化公司化工三厂间甲酚装置改造项目中第一异丙基甲苯汽提塔(201E)的改造设计方案及导向筛板的优点和设计方法。
- Bromobenzenesulfonyl chloride was obtained from 2 bromothiophenol via coupling with chloromethyl methyl ether,oxidation chlorination by chlorine water to give 76% yield of the title compound. 以邻溴苯硫酚为原料,经与氯甲基甲醚缩合、氯气水氧化氯化得到邻溴苯磺酰氯,总收率达76%25。
- The reaction of 2 bromo m xylene with chloro methyl methylether was studied and a new method for the synthesis of 2 bromo 4,6 bis (chloromethyl) m xylene and its derivatives is reported. 研究了2-溴间二甲苯与氯甲基甲基醚的反应,发现了一种合成2-溴-4,6-双(氯甲基)间二甲苯的新方法,同时对其衍生物的合成方法进行了探讨。
- In this paper, the synthesis of 2-(chloromethyl)benzimidazole from monochloroacetic acid and o-phenylenediamine was reported , meanwhile, its infrared spectra and proton NMR were determined. 利用氯乙酸和邻苯二胺合成了2-(氯甲基)苯并咪唑,并测试了其红外光谱,核磁共振氢谱等物理性质。
- The new method increases the productivity of chloromethyl ether and decreases the waste acid liquid.At the same time,some useful by-products are ob-tained and the cost of production is reduced. 它不仅提高了氯甲醚的产量,减少了废酸液的排放,而且还可获得具有一定价值的副产品,降低了生产成本。
- Keywords dipentene;catalyst;p cymene; 双戊烯;催化剂;对-异丙基甲苯;
- Keywords m cymene;catalytic oxidation;catalysts; 间异丙基甲苯;催化;氧化;催化剂;