Explain what is olefin metathesis? in one paragraph

Expert Solution

Olefin Metathesis allows the exchange of substituents between different olefins - a transalkylidenation.

This reaction was first used in petroleum reformation for the synthesis of higher olefins (Shell higher olefin process - SHOP), with nickel catalysts under high pressure and high temperatures. Nowadays, even polyenes with MW > 250,000 are produced industrially in this way.

Synthetically useful, high-yield procedures for lab use include ring closure between terminal vinyl groups, cross metathesis - the intermolecular reaction of terminal vinyl groups - and ring opening of strained alkenes. When molecules with terminal vinyl groups are used, the equilibrium can be driven by the ready removal of the product ethene from the reaction mixture. Ring opening metathesis can employ an excess of a second alkene (for example ethene), but can also be conducted as a homo- or co-polymerization reaction. The driving force in this case is the loss of ring strain.

queen_honey_blossom answered 1 year ago

Identify what is the Economic meaning of this Duration and explain in one paragraph what is...

Identify what is the Economic meaning of this Duration and explain in one paragraph what is its usefulness for investors?

what is the main job of the immune system, explain in one paragraph.

Explain in one paragraph what "Services and not-profit marketing" is about in strategic marketing.

1. A) In one paragraph, explain official unemployment rate is. What does it include? What does...

1. A) In one paragraph, explain official unemployment rate is. What does it include? What does it exclude? what are issues with the current way it is measured? What is the unemployment rate in the economy today? B) In one paragraph, Is the official unemployment rate one one we should be using? If not provide an alternative way to measure US employment. Use economic concepts.

Alkene metathesis or olefin metathesis includes two alkenes where the double bonds of the alkenes break...

Alkene metathesis or olefin metathesis includes two alkenes where the double bonds of the alkenes break and the fragments are reformed, however if the alkenes are asymmetrical there is a mixture of products, is there a way to know if one of the products is more favored, or are we going to have to show the formation of both products for all of these reactions?

Two words form a "metathesis pair" if you can transform one into the other by swapping...

Two words form a "metathesis pair" if you can transform one into the other by swapping two letters; for example, "converse" and "conserve". Write a function metathesis(word1, word2) to check if the two words can form a metathesis pair. The function will return a Boolean value (True or False). python code without using Zip method

1. In one paragraph explain the shared decision making in health care.

PHc214 1. In one paragraph explain the shared decision making in health care. 2. Mention three types of tools used in delivering information about the evidence which relevant to the decisions making in healthcare?

Windows: Write one paragraph on the the benefits of BitLocker. Write one paragraph on the benefits...

Windows: Write one paragraph on the the benefits of BitLocker. Write one paragraph on the benefits of Implementing Windows Server Update Services (WSUS) Solution. Write in your own words.

In one paragraph or more, choose and explain one or more characteristics of foreign countries’/regions’ intelligence...

In one paragraph or more, choose and explain one or more characteristics of foreign countries’/regions’ intelligence communities that might be beneficial for the US to incorporate or adopt in one form or another, in order to overcome the various problems that the US intelligence community is currently facing. Make sure that you answer WHY the US intel community should incorporate/adopt this characteristic/these characteristics.

In one paragraph explain the difference between redneck racism and polite racism, and explain why focusing...

In one paragraph explain the difference between redneck racism and polite racism, and explain why focusing on redneck racism is problematic.

Question