2. NaHSO3 3.Execss 1. ZnCl2, CH3OH (excess), H20 Me,SO4 00 NN PP C3H3O4 C3H1004 Hints Step 1. Conjugate addition, aromatization, air oxidation, followed by conjugate addition, Step 2: A reduction occurs.
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.
Please provide structures for the given reactions NN, OO, and PP
![2. NaHSO3
(excess), H20
3.Execss
1. ZnCl2,
CH3OH
Me,SO4
NN
PP
C3H3O4
C3H1004
Hints
Step 1. Conjugate addition, aromatization, air oxidation,
followed by conjugate addition,
Step 2: A reduction occurs.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6a58d60b-252a-4f5e-9318-e00155c64377%2Fc490269c-6f8e-4211-87f9-e7aca7c4810b%2Fd1qdjz_processed.jpeg&w=3840&q=75)
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