Figure 8-5 shows a mechanistic scheme for an organic reaction. Step 1 is an example of [Select] Step 2 is an example of [Select] Step 4 is an example of [Select]
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.
here is only one correct answer for each blank.
Answer choice for blank 1:
- proton transfer
- rearrengments with a hydride shift
- rearrengments with a alkyl shift
Answer choice for blank 2:
- proton transfer
- rearrengments with a hydride shift
- rearrengments with a alkyl shift
Answer choice for blank 3:
- proton transfer
- rearrengments with a hydride shift
- rearrengments with a alkyl shift
![Figure 8-5 shows a mechanistic scheme for an organic reaction.
- **Step 1** is an example of [Select].
- **Step 2** is an example of [Select].
- **Step 4** is an example of [Select].
(Note: This image contains dropdown menus with options for selecting the type of chemical reaction depicted by each step. However, the specific options available are not shown in the image.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53ee66c5-92fc-4868-ac88-c55611510c09%2F9821db8d-8920-40c6-b464-04643aea66fc%2F851zx6_processed.png&w=3840&q=75)
The given reaction is an acid catalysed water addition reaction of alkene. The reaction goes through the formation of three intermediates. We have to identify the types of reactions.
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