Alkane Metathesis Schrock

Alkane Metathesis Schrock-45
In contrast to an orbital picture for an alkene, an orbital picture for an alkylidene pi bond suggests orbital symmetry that can easily interact with the LUMO on an alkene.

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Alkane Metathesis Schrock

This reaction results in a four-membered ring, called a metallacyclobutane.

Olefin metathesis, or alkene metathesis, is an important process in petroleum refining and in the synthesis of important compounds such as pharmaceuticals.

The mechanism of olefin metathesis is related to pericyclic reactions like Diels Alder and [2 2] reactions.

There are other variations, including some designed for alkyne metathesis rather than alkene metathesis.

There is also a commercially-available Schrock-Hoveyda catalyst; that one is chiral, and can be used to carry out olefin metathesis enantioselectively.

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  • Alkane metathesis - Wikipedia
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    Alkane metathesis is a class of chemical reaction in which an alkane is rearranged to give a longer or shorter alkane product. It is similar to olefin metathesis, except that olefin metathesis cleaves and recreates a carbon-carbon double bond, but alkane methathesis operates on a…

  • Richard Schrock - ResearchGate
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    Olefin metathesis has had a large impact on modern organic chemistry, but important shortcomings remain for example, the lack of efficient processes that can be used to generate acyclic alkenyl.…

  • Research The Schrock Group
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    This research involves the application of metathesis reactions in organic chemistry. Most recently the research has focussed on reactions that produce as high as 99% Z products in good yields. Examples include Z -selective coupling of terminal olefins, ethenolysis, cross-metathesis, ring-closing, or alkane metathesis reactions.…

  • ALKANE METATHESIS AND RELATED REACTIONS
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    ALKANE METATHESIS AND RELATED REACTIONS Reported by Yang Wang April 7, 2011 INTRODUCTION Alkanes are the major constituents of petroleum and the most important components of…

  • Alkane Metathesis by Tandem Alkane
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    This Account describes systems that we have developed for alkane metathesis based on the tandem operation of catalysts for alkane dehydrogenation and olefin metathesis. As dehydrogenation catalysts, we used pincer-ligated iridium complexes, and we initially investigated Schrock-type Mo or W alkylidene complexes as olefin metathesis catalysts. The interoperability of the catalysts typically.…

  • Olefin metathesis - Wikipedia
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    Olefin metathesis is an organic reaction that entails the redistribution of fragments of alkenes olefins by the scission and regeneration of carbon-carbon double bonds.…

  • Alkane metathesis schrock Alkane metathesis by
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    Alkane Metathesis. Alkane metathesis by tandem alkane-dehydrogenation-olefin "a series of well-defined metathesis catalysts–synthesis of rucl2chr′pr32 and its reactions".-metathesis is synthetically equivalent to and has replaced a procedure of ozonolysis of an alkene to two ketone fragments followed by the reaction of one of them.…

  • Metathesis of Alkanes and Related Reactions -
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    Alkane metathesis is a novel catalytic and direct transformation of two molecules of a given alkane into its lower and higher homologues; moreover, the process proceeds at relatively low temperature ambient conditions or higher.…

  • Olefin Metathesis in Organic Synthesis - Princeton University
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    Olefin Metathesis in Organic Synthesis Wendy Jen MacMillan Group Meeting January 17, 2001 I. Well-defined alkene metathesis catalysts II. Applications of Olefin Metathesis…

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