n.[无化]溴化;溴处理
bromic plumbing───溴管道
brominated abs───溴化abs
bromides define───溴化物定义
bromine index───[化学]溴指数
theobromine chemical structure───可可碱化学结构
brominated flame retardants───溴系阻燃剂
bromine pentafluoride───[医]五氟化溴
antibromic───反溴酸
brominate an alcohol───溴化酒精
bromic electric heaters───溴电加热器
study for the synthesis of hexabromobenzene by means of direct bromination has been conducted, and some modifications to the classical method were proposed.───直接溴化法合成六溴苯作了系统的研究,并对文献方法进行了一系列的改进。
3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.───甲酚为原料经溴化、水解、甲氧基化和甲基化4步反应合成药物中间体3,4,5-三甲氧基苯甲醛,总收率达53。
In this paper, we reported a new method of bromination of acetophenone using potassium bromate in phosphoric acid. Some factors that effect yield are also discussed.───探讨了用溴酸钾— 磷酸体系溴化苯乙酮的溴化新方法,并讨论了影响反应收率的几个因素。
In cases of doubt the changes following hydrogenation, bromination or other chemical attack upon the double bond can be studied.───在有疑问时可以研究双键的氢化,溴化或其他化学反应所引起的变化。
METHOD The title compound was synthesized from p-methylsulfonyl-acetophenone via bromination , condensation and cyclization.───方法以对甲磺酰基苯乙酮为原料,经溴代、缩合和环合三步反应合成了产物。
It was synthesized with 1-octanol as organic solvent from bisphenol-A, bromine and hydrogen peroxide by in-situ bromination-oxidation.───以正辛醇为溶剂,以双酚A、溴素、双氧水为原料,采用原位溴化-氧化法合成了四溴双酚A。
METHODS: The target compound was prepared by the bromination and amination reaction.───方法:用溴代及胺化反应合成了四甲基吡嗪衍生物。
Firstly introduces reaction mechanism and synthesis study on the acylation, diazotization, bromination reaction and so on.───首先介绍了酰基化反应、重氮化反应、溴化反应,成醚反应的机理和合成研究。
Tinidazole was synthesized from metronidazole by bromination, thiolation and oxidation with total yield of 44. 6%.───以甲硝唑为原料,经溴化、硫醚化和氧化合成替硝唑,总收率44.