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- A method of refining methyl carbamate(MC) was investigated with extraction using chloroform as extractant and recrystallization by cooling naturally. 用氯仿作为萃取剂,研究了用尿素醇解法合成氨基甲酸甲酯(简称MC)粗产品的提纯方法。
- Liquid chromatographic method coupled with electrospray ionization mass spectrometry(LC-ESI-MS) has been developed for the determination of methyl carbamate residues in liquor. 建立了高效液相色谱-电喷雾质谱测定白酒中氨基甲酸甲酯农药残留的检测方法。
- R&D of methyl carbamate,ethyl carbamate,polyferric sulfate,mepiquat chloride,the oxalic acid synetesis in glycol oxdation process,solid ethanol,N-methylpiperazine etc. 完成氨基甲酸酯、氨基甲酸乙酯、聚合硫酸铁、缩节胺、乙二醇氧化法制草酸、固体乙醇、N-甲基哌嗪等精细化工新产品或新工艺的开发。
- Preparation of methyl carbamate is the main content for this paper.At the same time coupling reaction combined with urea and methanol is used in the synthesis of methyl carbamate. 重点研究了氨基甲酸甲酯的合成路线,本文将耦合反应应用于氨基甲酸甲酯的合成反应中,结合尿素醇解法制备氨基甲酸甲酯。
- Effect of N methyl D,L aspartate(NMA) on fat deposition and approach of the mechanism were studied in finishing swine. 研究了不同剂量 N-甲基 -D,L-天门冬氨酸 ( NMA)对肥育猪脂肪代谢的影响。
- Electronic grade N methyl 2 pyrrolidone (EL NMP) solvent is used as wax removal, wafer degreasing and other contamination detergent in PC magnetic head production. 电子级NMP溶剂在电脑磁头生产中用作脱蜡剂、脱脂剂和污渍清洁剂。
- Nitric oxide, an intracellular messenger molecule linked to activation of N Methyl D aspartate(NMDA) receptor, plays a role in morphine tolerance and dependence. 一氧化氮(NO)是与N甲基D天(门)冬氨酸(NMDA)受体活性相关的一种细胞内信使分子,在吗啡耐受和依赖中起作用。
- The applications of methyl carbamate as intermediates in the process of organic synthesis are reviewed in this paper.Methyl carbamate can also be used in agriculture、architecture、textile and so on. 本文综述了氨基甲酸酯类化合物在有机合成过程中作为中间体的主要用途,以及在农业、建筑、纺织等行业的应用。
- N Methyl 4 nitrophthalimide ( 4 NPI) was reduced by metal such as iron powder in dilute acidic solution and then hydrolyzed in solution of sodium hydroxide to provide di sodium 4 aminophthalate. 将 4 硝基邻苯二甲酰亚甲胺 (4 NPI)用铁粉还原为 4 氨基邻苯二甲酰亚甲胺 ;再在氢氧化钠水溶液中水解成 4 氨基邻苯二甲酸钠 .
- N-allyl-N-(m-aminophenyl) methyl carbamate N-烯丙基-N-间氨基苯甲基-氨基甲酸叔丁酯
- The intermidiate of Leminon [2 methyl N methyl N (2 methylphenyl) propionate amid] has been synthesized via nitration,reduction,acylation and methylation from toluene. 以甲苯为原料,通过硝化、还原、酰化、甲基化合成了莱敏拉唑中间体2-甲基-N-甲基-N-(2-甲基苯基)-丙酰胺
- I'm going to make sure if I'm going to Macao. 我要拿定主意我是否去澳门。
- Keywords pyridazinone;methyl carbamate;synthesis;fungicidal activity; 哒嗪酮;氨基甲酸酯;合成;杀菌剂;
- As far as I'm concerned, the beige one is better. 就我而言,米色的那个更好。
- I'll trust you to behave responsibly while I'm out. 我相信你在我外出期间会认真办事的。
- I can't say I'm at all pleased by your product. 我不能说对你们的产品满意。
- I can't say I'm wild about her new husband. 我很难说我非常喜欢她的新婚丈夫。
- I don't live here; I'm just staying a while. 我不住这,我只停留一会儿。
- Don't worry over me. I'm all right. I'll get along. 不要为我发愁。我没事,我会干好的。
- Keywords N methyl carbamyl chloride;ratio of input materials;methyl isocyanate; 甲氨基甲酰氯;合成配比;甲基异氰酸酯;