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.
Post lab 6
![Fill up the table:
Test tube
A
ISO amy
B
ethanol
C
methanol
Test tube
A
Observations
Before: (include the scents before and after the reaction) After:
strong alcond ador
burnt-alcohol odor
D
ethanol
Characterization
Fill up the table:
C
glacial acetic: vinegar
wine-like odor
glacial acetic: vinegour
alcoholic odor
Salicyclic: wintergreen
wine-like odor
salicyclic: wintergreen
changed color
plastic-balloon like odor
clear color
vicks vaporub odor
clear color
vicks vaporub odor
clecur colon w/ precipitation
Observations
Not Applicable
white color with cloudy-like formations](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7dc62edc-f1e9-4293-8110-d14f900a852a%2F4ae810b7-b887-4237-8db0-112e7542d8c6%2Fty51m2l_processed.jpeg&w=3840&q=75)
![2. Using the given reaction of esterification, complete the table below by drawing
the synthesized ester in each specified test tube in the experiment:
Test tube
A
C
D
Ester](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7dc62edc-f1e9-4293-8110-d14f900a852a%2F4ae810b7-b887-4237-8db0-112e7542d8c6%2Ffjp7bec_processed.jpeg&w=3840&q=75)
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