Is the most stable product the major product?

Explanation: The Zaitsev product is the most stable alkene that can be formed. This is the major product formed in E1 elimination reactions, because the carbocation can undergo hydride shifts to stabilize the positive charge. The most stable alkene is the most substituted alkene, and thus the correct answer.

How do you know which product is the major product?

Zaitsev’s rule predicts that in an elimination reaction, the most substituted product will be the most stable, and therefore the most favored.

1. the most stable product is the major product.
2. Study and know the good leaving group ( important).
3. select the most electrophile and the most nucleophil.

What is the most stable intermediate?

The carbocation bonded to three alkanes (tertiary carbocation) is the most stable, and thus the correct answer. Secondary carbocations will require more energy than tertiary, and primary carbocations will require the most energy.

What is the major product A?

Alcohols Phenols and Ethers.

Why is the major product more stable?

More electron donating groups will stabilise the carbocation to a greater extent. Hence it is more stable, more likely formed and eventually becomes the major product. Hence it is less stable, less likely formed and becomes the minor product.

What is major product of the reaction?

Major product: The product that is produced in the greatest amount in a chemical reaction.

Which is the least stable type of reactive intermediate primary carbocation?

methyl carbocations
Primary carbocations are highly unstable and not often observed as reaction intermediates; methyl carbocations are even less stable.

What is the order of stability of the following carbocations?

Thus the observed order of stability for carbocations is as follows: tertiary > secondary > primary > methyl.

Why is the major product formed?

This formation of a major product and minor product only occurs if the double bond is unsymmetrical (when the carbon atoms involved in the double bond are bonded to different groups), for example in butene. When electrophilic addition takes place with a hydrogen halide (HBr) we will form these two different products.

How do you find the products of a reaction?

A chemical equation describes a chemical reaction. Reactants are starting materials and are written on the left-hand side of the equation. Products are the end-result of the reaction and are written on the right-hand side of the equation.

Why are major and minor products formed in different amounts?

What is the most common type of addition reaction in alkenes?

Ch08 Reacns of Alkenes (landscape) Page 2. In most cases, the cation produced will react with another nucleophile to produce the final overall electrophilic addition product. Electrophilic addition is probably the most common reaction of alkenes.

What is the orientation of the bromine radical in this reaction?

The bromine radical is electron deficient and electrophilic. The radical adds to the double bond, generating a carbon centered radical. This radical then abstracts hydrogen from a molecule of H-Br, giving the product, and another bromine radical. (Chain process). The orientation of this reaction is anti Markovnikov.

What happens when a monosubstituted Benzene undergoes electrophilic aromatic substitution?

When a monosubstituted benzene undergoes an electrophilic aromatic substitution reaction, three possible disubstitution products might be obtained. For example, nitration of bromoben- zene could in principle giveortho-,meta-,orpara-bromonitrobenzene. If substitution were totally random, an ortho:meta:para product ratio of 2:2:1 would be expected.

What happens when you add HBr to an alkene?

The alkene abstracts a proton from the HBr, and a carbocation and bromide ion are generated. The bromide ion quickly attacks the cationic center and yields the final product. In the final product, H-Br has been added across the double bond. Orientation of Addition Consider the addition of H-Br to 2-methylbut-2-ene: