alkenes ['ælkənz]

例句:

• It provides a useful vehicle for transforming unsaturated acids to their corresponding alkenes.
  它为使不饱和酸变成相应的烯烃提供了一个有用的中间体.
  
• Catalysis: Development of chirometallopor - phyrins as enantioselective oxidation catalysts of alkenes and sulfides.
  催化作用: 开发新型手性金属催化烯类及硫醚类之对映选择性氧化.
  
• Recent progress on asymmetric epoxidation of alkenes by chiral catalysts was summaries.
  综述了手性催化剂催化的不对称环氧化反应研究进展情况.
  
• But he disagreed with the argument that type-2 alkenes in the environment are part of the story.
  来自MSN