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- Keywords osimium oxide;dihydroxylation of alkene;stereoselectivity; 四氧化锇;烯烃双羟基化反应;立体选择性;
- dihydroxylation of alkene 烯烃双羟基化反应
- The Plant of cracking heater depolymerizing furnace of Alkene Factory of QLSH CO. 齐鲁石化公司烯烃厂裂解车间;
- New researches on mechanism of alkene epoxidation by iron porphyrins and manganese porphyrins in recent years are presented in this paper. 摘要本文就铁卟啉及锰卟啉模拟酶体系近年来在催化烯烃环氧化反应机理方面的最新研究成果进行了详细阐述。
- WT5BZ]Some kinds of asymmetric reactions catalyzed by chiral polymer, such as asymmetric reaction of aldehydes with diethylzinc, asymmetric dihydroxylation of olefines were reviewed. 综述了近几年来手性聚合物催化剂在不对称烷基化反应,双羟基化反应中的应用,并对该类催化剂的设计作了分析和总结,系统地讨论了催化剂的结构与性能的关系。
- The analysis results showed that the rapid and accurate determination of alkene content in jet fuels can be achieved by using near infrared spectrum analysis. 分析结果表明,近红外光谱分析可实现对喷气燃料烯烃含量的快速准确测定。
- How can I persuade you of my sincerity? 我如何能够让你相信我的诚意？
- The electrolytic titration method was more accurately than the inverse titration method for 2%~10% of alkene and the inverse titration method was more accurately for 0.62%~0.040% of alkene and relative error was 2~3% and -4.5~-3.5% respectively. 烯烃的质量分数在2%25~10%25之间时，电位滴定法比反滴定法的测量结果更加准确，相对误差约为2%25~3%25；烯烃的质量分数在0.;040%25~0
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。
- In volatile oil of processed Cyperus, the contents of alkene and ketone compounds are more than those in unprocessed Cypreus, while the content of acid compounds is less than that of unprocessed Cypreus. 醋炙香附挥发油的主要成分中各种烯类、酮类化合物含量高于生品中的含量，而酸类化合物的含量低于生品中的含量。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- Have a glass of beer to rinse your dinner down. 喝杯啤酒把你吃的晚饭冲下去。
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- Your work falls short of my expectations. 你的工作未达到我的期望。
- He bit off a large piece of the apple. 他咬下一大块苹果。
- He emphasized the importance of careful driving. 他强调小心驾驶的重要性。
- I have a huge pile of letters to deal with. 我有一大堆信件要处理。
- He gave a description of what he had seen. 他描述了他所见到的一切。
