4. Draw the product to each of the following reactions. a. b. HO- HO H HO HO HO HO CHO -H -H -OH -H CH₂OH CHO H -H H CH₂OH 1) NH₂OH 2) Ac₂0, heat 3) NaOH, H₂O 1) HCI, NaCN 2) H₂, Lindlar's catalyst 3) HCI, H₂O
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.
Draw the product to each of the following reactions.
![4. Draw the product to each of the following reactions.
a.
b.
HO
HO
H-
HO
HO
HO
HO
CHO
∙H
-H
-OH
-H
CH₂OH
CHO
-H
-H
-H
+
CH₂OH
1)NH₂OH
2) Ac₂O, heat
3) NaOH, H₂O
1) HCI, NaCN
2) H₂, Lindlar's catalyst
3) HCI, H₂O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd859d598-50bb-4ccc-a26f-3606b98e6f85%2F30307dd0-4468-417e-8f86-06ef6ac02b60%2F5vyuopi_processed.jpeg&w=3840&q=75)
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