2. Label each compound "YES" or "NO" to indicate if it is aromatic or not. For each anti- and non-aromatic compound, provide at least one reason why it is not aromatic. •N -CEN
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 explain each question in details. thanks
![2. Label each compound "YES" or "NO" to indicate if it is aromatic or not. For each anti- and
non-aromatic compound, provide at least one reason why it is not aromatic.
N
N
-CEN
BH
HN-
HN-
+](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F303ccd0e-2dda-49db-acba-28752381abfe%2F78dc942f-6fca-411f-bb06-73ad80e3b95a%2Fx13bow_processed.png&w=3840&q=75)
![8.2
1. Match each compound to its (partial) 'H NMR spectrum:
Br
OH
NHCOR
CO2H
CI
NO 2
.CO2H
& రెడ్ డోర్
OAC
7.6
7.6 7.4
7.4
7.2
7.6
L/L
7.2
7.0
CI
7.4
7.2 7.0
8.1 8.0 7.6 7.5 7.4
7.8
7.6
8.3
7.4 7.2
CO 2 R
NO₂
8.2
7.0
8.1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F303ccd0e-2dda-49db-acba-28752381abfe%2F78dc942f-6fca-411f-bb06-73ad80e3b95a%2F6czspkw_processed.png&w=3840&q=75)
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