2. When the molecule shown below is heated up in water, two alcohols that are constitutional isomers are formed. Predict the structures for the two alcohols. Which do you suppose would be major? Why? Show the mechanism for the reaction you are proposing. Is your mechanism an SN1, SN2, E1, or E2 pathway? b Br. Which major? alcohol A or alcohol B Why major? mechanism: Mechanism pathway: SN1 SN2 El alcohol A alcohol B Are your alcohols A and B constitutional isomers? Y N E2
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.
![**Transcription for Educational Website:**
**Question 2:**
When the molecule shown below is heated up in water, two alcohols that are constitutional isomers are formed. Predict the structures for the two alcohols. Which do you suppose would be major? Why? Show the mechanism for the reaction you are proposing. Is your mechanism an Sn1, Sn2, E1, or E2 pathway?
![Chemical Structure]
- **Structure:** A six-membered carbon ring with a bromine atom (Br) and a hydrogen atom (H) attached.
This molecule reacts to form:
- **Alcohol A**
- **Alcohol B**
**Questions:**
1. Which is major? Alcohol A or Alcohol B
2. Are your alcohols A and B constitutional isomers? Y N
**Mechanism:**
(Provide a detailed mechanism for the reaction.)
**Pathway Options:**
- Sn1
- Sn2
- E1
- E2
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**Explanation of Diagrams:**
The chemical reaction depicts the conversion of a brominated cyclic compound into alcohols through nucleophilic substitution (or elimination) pathways. The aforementioned pathways (Sn1, Sn2, E1, E2) refer to different reaction mechanisms. Predicting the major product requires understanding the reaction conditions affecting the stability of intermediates and the likelihood of each pathway. Additionally, constitutional isomerism is based on the arrangement of atoms—alcohols A and B should be examined for structural differences.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F593e4a4c-a9fc-4231-bacd-fbc9affb1612%2Fac7c1534-5bdf-45b3-8f16-a4ee3f160d18%2F95grap_processed.jpeg&w=3840&q=75)
Note- Since the given question is a multiple question, hence I solved first question according to rules of Bartleby. Please repost rest question separately.
Here we have to predict the major product, cause of major product and mechanism of reaction.
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