... 化学中间体 chemical intermediate 环状中间体 cyclic intermediate 活性中间体 active intermediate ...
基于12个网页-相关网页
结果表明，2-硝基丙烯可能首先热解产生一个四元环状中间体。
The result obtained indicates that 2-nitropropene may be decomposed via a stepwise process.
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。
The reaction of bis-imidazoline with 1,2-dibromoethane and potassium carbonate in acetonitrile provided monobromide salt with a yield of 78.
一种是通过生成环状正离子中间体进行的，通过这样的历程进行的加成反应是反式加成。
One is conducted amidst formed cyclic cation intermediate and the reaction thus carried out is known as anti- form addition.
应用推荐