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Richard Schrok



Character experiences

Schrox is born in Bern, Indiana, in San Diego, California.

In 1967, a bachelor's degree was obtained at Riverside, California, and

got a Ph.D. in Harvard University in 1971.

From 1971 to 1972, Schrok learned after the University of Cambridge.

1972, he was employed in DuPont.

Professor Richard Schrock received a doctoral degree in inorganic chemistry in Harvard University in 1971;

after the Cambridge University for the National Health Foundation (NSF)

from 1972 - 1975 is employed in DuPont Company R & D center;

Join Massachusetts Institute of Technology,

1980 raised to professor,

1989 won the title of Frederick G. Case Honorary.

Nobel Prize (4)

1989, he has been MIT's chemistry professor. Schrok is a US National Art and Academy of Sciences, member of the National Academy of Sciences. Two children have two children.

2005, due to the decomposition reaction of olefins, an organic chemical technique contribution, Schroker and Robert Glab, Yv Shaw Wan got Nobel Chemical Award.

Main contribution

In the early 1950s, the catalyst of olefin complex decomposition reactions is mainly mixed by transition metal salts and the main alkyl reagent or solid support substrate, said Unknown structured catalysts such as WCL6 / Bu4Sn, MoO3 / SiO2, RE2O7 / Al2O3, and the like. Since they have low cost and easy to synthesize, some roles have been played in some large-scale synthesis applications. However, the reaction conditions required for these catalysts are generally harsh, often requiring participation of the promoted catalyst such as strong roads, so many functional groups will be destroyed in the reaction.

Best in the early 1970s, Schroke began to study the new methylene mixture. He tried catalyst containing different metals (such as tantalum, tungsten and molybdenum). After nearly 20 years of study, the Carbin compound of the 1990 compatible metal molybdenum can be used as an effective olefin complex decomposible catalyst, which is developed into the first practical catalyst.

As shown in Figure "Metal molybdenum catalyst" as one of the Schthok molybdenum catalyst, high reaction activity can be obtained by connecting to a metal atom with a particular group, referred to as a Schrokabin compound.

As this catalyst finds that chemists begin to realize that the transmissions of the olefins can be used for organic synthesis, and can replace a large amount of conventional organic synthesis. The transposition mechanism has caused increasing attention and further research of organic chemists. Although metal molybdenum catalyst is sensitive to oxygen and humidity, it will become an important tool in organic synthesis.

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