甲基溴

Main products: Ifosfamide,Ifosfamide acylate,2-Deoxy-D-Glucose, Vecuronium Bromide Oteracil Potassium,Gimeracil,Cinildipine,, Ceftiofur Hcl,Ceftiofur Sodium,Buflomedil Hcl

主要产品有：异环磷酰胺、异环磷酰胺酰化物、2-脱氧-D-葡萄糖、维库溴铵、盐酸头孢噻呋、头孢噻呋钠、氧嗪酸钾、吉莫斯特、西尼地平、盐酸马尼地平、培美曲塞、培美曲塞酸、培美曲塞二钠、尼索地平、消旋卡多曲、雷尼酸锶、盐酸丁咯地尔、1-(3-三氟甲基苯基)哌嗪盐酸盐、4-溴-2-甲基苯甲酸。

Main products: Ifosfamide,Ifosfamide acylate,2-Deoxy-D-Glucose,Vecuronium Bromide, Ceftiofur Hcl,Ceftiofur Sodium,Buflomedil Hcl,Oteracil Potassium,Gimeracil,Cinildipine,Manidipine dihydrochloride,Pemetrexed intermediate,Pemetrexed acid,Pemetrexed Disodium, Nisoldipine, Racecadotril, Strontium Ranelate, 1-(3-Trifluoromethylphenyl)piperazine hydrochloride, 4-Bromo-2-methylbenzoic acid.

主要产品有：异环磷酰胺、异环磷酰胺酰化物、2-脱氧-D-葡萄糖、维库溴铵、盐酸头孢噻呋、头孢噻呋钠、氧嗪酸钾、吉莫斯特、西尼地平、盐酸马尼地平、培美曲塞、培美曲塞酸、培美曲塞二钠、尼索地平、消旋卡多曲、雷尼酸锶、盐酸丁咯地尔、1-(3-三氟甲基苯基)哌嗪盐酸盐、4-溴-2-甲基苯甲酸。

While all the phenyl groups in tetraphenylphenyl groups or benzophenanthrene groups are not coplanar. At the same time, by density function theory, the electronic energy gap between HOMO and LUMO frontier molecular orbitals of condensed aromatics are calculated and the Eg of acenaphthenyl groups in C_2 gum is the smallest, which explains the reason why C_2 gum has the best radiation protection effects.

利用甲基三氯硅烷和溴苯的格氏反应合成了甲基苯基二氯硅烷，用核磁分析证实了格氏反应中高沸点副产物为甲基二苯基氯硅烷；通过甲基苯基二氯硅烷和二甲基二氯硅烷的共水解，再裂解而制得含Me_2SiO链节的甲基苯基环硅氧烷混合物，进而利用碱胶开环聚合得到甲基苯基硅橡胶生胶；也可通过甲基苯基二氯硅烷水解所得甲基苯基环硅氧烷D_3~(3Ph、D_4~(4Ph_)与D_4开环聚合制得甲基苯基硅橡胶生胶。

Phthalimide,anthranilic acid,2methyleneglutaronitrile bromina 1bromobutane 1,2benzisothiazole3one.

邻苯二甲酰亚胺，邻氨基苯甲酸，2亚甲基戊二脯，2溴2溴甲基戊二脯，溴代正丁烷，1.2苯并异噻唑3酮。

Was synthesized from succimide by bromination with bromine,methylation with dimethyl sulfate and the reaction of indolyl magnesium bromide with 2,3-dibromoN-methylmaleimide.

以琥珀酰亚胺为起始原料，经过溴化、甲基化后再与吲哚溴化镁加成反应合成了2-溴-3-(1H-吲哚-3)-N-甲基马来酰亚胺，总收率44.8%，其结构经1H NMR和IR确证。

Bis-imidazoline was prepared from triethylene tetraamine and N,N-dimethylformamide dimethyl acetal at 85℃ for 2 h with toluene as solvent, with a yield of 90.4%. The reaction of bis-imidazoline with 1,2-dibromoethane and potassium carbonate in acetonitrile provided with a monobromide salt yield of 78.7%. Hydrolysis of monobromide salt under aqueous causic solution formed 1,4,7,10-tetraazzcyclododecane in a 74.2% yield.

用甲苯作溶剂，使三乙烯四胺和N，N-二甲基甲酰胺二甲基缩醛在85℃反应2 h，得到中间体双咪唑啉，产率90.4%，在乙腈溶剂中，碳酸钾存在下，双咪唑啉和1，2-二溴乙烷进行扩环反应，得到环状中间体一溴盐，产率78.7%，一溴盐经碱性水解2 h，得到1，4，7，10-四氮杂十二烷，产率74.2%。

The α-monobromination of 2-pentone,4-methyl acetophenone,4-methoxyacetophenone,6-methoxy-2-acetylnaphthane,2,2,5,5-tetramethyl-3-hexanone,cyclooctanone,cyclododecanone with respectively,were studied.

研究了离子液体三溴化1-丁基-3-甲基咪唑[Br3]对2-戊酮、4-甲基苯乙酮、4-甲氧基苯乙酮、6-甲氧基-2-乙酰基萘、2，2，5，5-4-甲基-3-己酮、环辛酮、环十二酮、丁醛等羰基化合物的α-溴化反应。

Methods 4-Methylacetophenone was used as starting material to give 2-(4-methylphenyl) propionitrile via reduction, chlorination and cyanation. 2-(4-Bromomethylpheny1) propionic acid obtained by hydrolysis and bromination of compound Ⅲ could further provided loxoprofen sodium through four steps.

以4-甲基苯乙酮为原料，经还原、氯化、氰化得到2-（4-甲基）苯基丙腈，然后经水解、溴化得到关键中间体2-（4-溴甲基）苯基丙酸，该中间体再经过4步反应可制得洛索洛芬钠。

It is necessary to carry out a thorough study on pest control technology with DMDS, with an expectation of obtaining a new fumigant of methyl bromide alternative.2. Investigation of the toxicity of fumigation on adult and mixed stages of the three most tolerant insect species -- Sitophilus oryzae, Rhyzopertha dominica and Tribolium castaneum -- under a range of EtF、DMS and DMDS doses in a Flow-through Fumigation System shows that the FTFS procedure offers a constant concentration of fumigant with low CO2 concentrations and ensures that the fumigant toxicity is effectively not compromised by CO2. In comparison with chamber fumigation method, the toxicity data of EtF、DMS and DMDS obtained from this experiment is more accurate by using FTFS.

主要研究结果如下：1、甲酸乙酯和二甲基二硫对仓储害虫具有良好的控制作用，应加快甲酸乙酯替代溴甲烷防治仓储害虫开发应用，同时，二甲基二硫是很有潜力的仓储害虫防治熏蒸剂，要深入进行二甲基二硫控制有害生物的技术研究，以期获得新的溴甲烷替代熏蒸剂。2、利用循环熏蒸系统测定了甲酸乙酯、二甲基二硫和甲硫醚对米象Sitophilus oryzaeL。

Bromo-5-formyl -3-methylpyrrole is an important intermediate of tolyporohin. On the base of introducing the present research and development of tolypo- rohin and pyrroles ramification at home and abroad, an emphasis was made on synthesis of 2-Bromo-5-formyl -3-methylpyrrole and the technical conditions of all steps, which was described as follows. Diethyl 3,5-dimethylpyrrole-2,4-dicarboxylate was made by nitrification, reduction and cycle of ethyl acetoacetate.

由于2-溴-5-甲酰基-3-甲基吡咯是合成托尼卟吩的重要中间体，本文在阐述了当前托尼卟吩及吡咯衍生物的国内外研究和开发的基础上，重点研究了2-溴-5-甲酰基-3-甲基吡咯的合成，并对各步反应进行了工艺研究，具体合成步骤如下：本文通过对乙酰乙酸乙酯的亚硝化、还原、成环，反应生成吡咯单环衍生物2，4-二乙氧羰基-3，5-二甲基吡咯。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。