Carbene reaction, that is, olefin metathesis reaction. The 2005 Nobel Prize in Chemistry was shared between three scientists: Frenchman Yves Chauvin and Americans Robert H. Grubbs and Richard H. Schrock ( Richard R. Schrock). The Royal Swedish Academy of Sciences said they were honored for “developing the metathesis method in organic synthesis”. Winner’s contribution demonstrates the implications of the method in the chemical industry, opening up a new opportunity to synthesize molecules that will lead to rapid development and industrial production of drugs, plastics and other materials that will become cheaper , and more friendly to the environment. In order to enable domestic readers to further understand the significance of their discoveries.
In 1966, Natta (Nobel Prize in Chemistry 1963) and his collaborators showed that the combination of tungsten hexachloride and triethylaluminum or diethylaluminum chloride made cycloheptene, cyclooctene and cyclodecane ene polymerization. The following year, Calderon and co-workers reported extending these findings to other cyclic alkenes by using a mixture of tungsten hexachloride and ethylaluminum chloride as an initiator. Calderon believed that the polymerization of cyclic olefins to polyene monomers and the disproportionation of alicyclic olefins were the same type of reaction, and proposed to call it “olefin metathesis reaction”. The appearance of tungsten hexachloride became the basis for the discovery of olefin metathesis reaction. Their results have aroused the interest of other scientists in the potential of introducing this reaction into organic and metal-organic reactions.
The catalytic metathesis shortens the synthetic route, resulting in a higher yield of the reaction. This makes it possible for us to explore more and newer organic molecules and thus also contribute to “green chemistry”.
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