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1.Recent advances in ring closing metathesis (RCM) reaction, including olefin and enyne metathesis reaction are reviewed.

1.综述了近几年复分解(RCM)反应研究新进展,包括了烯、烯-炔RCM反应。

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2.In this thesis, the carbozincation of acetylenic sulfones and its applications in the stereoselective synthesis of polysubstituted olefins were investigated.

2.本论文研究了炔基砜锌化反应及其原位产生α-磺酰基烯基锌试剂在立体选择性合成多取代烯应用。

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3.The diolefins and alkenyl aromatics are very unstable components which can give gums by polymerization.In giving olefins and alky aromatics the hydrogenation improves the product quality.

3.二烯和烯基芳是非常不稳定组分,可聚合产生凝胶。对于给定烯和烷基芳,氢化可以改善产品质量。

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