ring-closure reaction
英 [rɪŋ ˈkləʊʒə(r) riˈækʃn]
美 [rɪŋ ˈkloʊʒər riˈækʃn]
闭环反应
双语例句
- Our studies have laid stress on the process and condition of ring opening as well as ring-closure reaction.
分析讨论了开环和闭环反应机理及反应条件。 - The effects of material ratio and reaction time on ring-opening reaction, along with the effects of ( reaction) temperature, reaction time, the dosage and concentration of sodium hydroxide on ring-closure reaction were ( investigated) by chemical analysis and infrared spectrometry.
采用化学分析及红外光谱分析方法研究了反应物料配比、反应时间对开环反应的影响及反应温度、时间与氢氧化钠的用量和浓度对闭环反应的影响。 - It has been shown that the ring-opening reaction of bisphenol A with epichlorohydrin at the presence of quaternary ammonium salt, is a second-order reaction and the followed ring-closure reaction is a first-order reaction.
结果表明，在季铵盐存在下，双酚A与环氧氯丙烷的开环反应为二级反应，而第二步的闭环反应为一级反应。 - NMR monitoring technique was applied to investigate the following ring-closure reaction under acidic and basic conditions. It was proposed that there underwent a mechanism as first by a lactone ring-opening then followed by a dehydrating cyclization reaction.
采用核磁共振跟踪对其在酸、碱性条件下反应历程进行了研究，确认它是一个先内酯开环、后脱水关环的反应。