比较了氯乙酰氯和溴乙酰溴对中间体及硝基安定收率的影响。
The effect of chloroacetyl chloride and bromoacetyl bromide on yields of intermediates and nitrazepam was compared.
用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程，优化了反应条件，方法简单，快速，准确。
A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported, and the reaction condition is optimized.
植物水解酶与胆碱酯酶的区别在于它们不能催化溴化乙酰胆碱或溴化硫代乙酰胆碱水解。
But they differ from cholinesterase in that they do not catalytically hydrolyze acetylcholine bromide or butylcholine bromide at pH 7—8.
方法以1，3-溴丙烷与乙酰乙酸乙酯为原料经环合、开环、溴代等反应合成。
METHODS The compound was synthesized through the reaction of cyclization, split, bromination et al and using 1,3-propyl bromide and ethyl acetoacetate as raw materials.
方法以1，3-溴丙烷与乙酰乙酸乙酯为原料经环合、开环、溴代等反应合成。
METHODS The compound was synthesized through the reaction of cyclization, split, bromination et al and using 1,3-propyl bromide and ethyl acetoacetate as raw materials.
应用推荐