CH3 CH3 CH3 CH2=ĊCH,ĊHCH,OH H2SO4, H3C, H;C Referring to the above reaction: 1. Which atom does the H2SO4 first remove? 2. Identify the reaction if it's hydrogenation, hydrohalogenation, etc. 3. Propose a mechanism for the reaction, using the arrow formalism to indicate the flow of electrons.
Reactive Intermediates
In chemistry, reactive intermediates are termed as short-lived, highly reactive atoms with high energy. They rapidly transform into stable particles during a chemical reaction. In specific cases, by means of matrix isolation and at low-temperature reactive intermediates can be isolated.
Hydride Shift
A hydride shift is a rearrangement of a hydrogen atom in a carbocation that occurs to make the molecule more stable. In organic chemistry, rearrangement of the carbocation is very easily seen. This rearrangement can be because of the movement of a carbocation to attain stability in the compound. Such structural reorganization movement is called a shift within molecules. After the shifting of carbocation over the different carbon then they form structural isomers of the previous existing molecule.
Vinylic Carbocation
A carbocation where the positive charge is on the alkene carbon is known as the vinyl carbocation or vinyl cation. The empirical formula for vinyl cation is C2H3+. In the vinyl carbocation, the positive charge is on the carbon atom with the double bond therefore it is sp hybridized. It is known to be a part of various reactions, for example, electrophilic addition of alkynes and solvolysis as well. It plays the role of a reactive intermediate in these reactions.
Cycloheptatrienyl Cation
It is an aromatic carbocation having a general formula, [C7 H7]+. It is also known as the aromatic tropylium ion. Its name is derived from the molecule tropine, which is a seven membered carbon atom ring. Cycloheptatriene or tropylidene was first synthesized from tropine.
Stability of Vinyl Carbocation
Carbocations are positively charged carbon atoms. It is also known as a carbonium ion.
![CH3 CH3
CH3
CH;=ĊCH,CHCH;OH
H2SO4, H3C
H3C
Referring to the above reaction:
1. Which atom does the H2SO4 first remove?
2. Identify the reaction if it's hydrogenation, hydrohalogenation, etc.
3. Propose a mechanism for the reaction, using the arrow formalism to indicate the flow of electrons.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc7ce867d-b2ff-4734-969d-719d4d22f183%2Ff07a08ae-76dc-4671-8341-358b41d65948%2Faitr8c5_processed.png&w=3840&q=75)
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