2. Fill in the missing reagent and/or product for each of the following reactions. 2 요 H OEt H. CHO ? C6H5CHO -OH, H₂O CN CN NaOEt, EtOH 1) NaOEt 2) H3O+ 1) NaOEt 2) H3O+ 1) NaOEt 2) H₂O H+, H₂O ? OEt
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.
![2. Fill in the missing reagent and/or product for each of the following reactions.
2
요
H
OEt
H.
CHO
?
C6H5CHO
-OH, H₂O
CN CN
NaOEt, EtOH
1) NaOEt
2) H3O+
1) NaOEt
2) H3O+
1) NaOEt
2) H₂O
H+, H₂O
?
OEt](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec25ea6e-d2e4-40f9-8f5c-5481accf6b27%2Fd0643911-769d-4600-869c-da323a8c4fe2%2Fke2lkib_processed.png&w=3840&q=75)
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