What is the major organic product obtained from the following Claisen reaction? a. 1 b. 2 c. 3 OCH3 1. NaOCH3 CH₂OH Ph 2. H₂O* OCH3 Ph Ph OCH3 Ph OCH₂ 2 4 Ph OCHS OCH₁
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.
ch2
![What is the major organic product obtained from the following Claisen reaction?
i
OCH3
a. 1
b. 2
⠀
c. 3
d. 4
1. NaOCH3
CH3OH
Ph
2. H₂O*
OCH3
Ph
1
OCH3 Ph
2
Ph
z z
Ph
4
OCH
OCH3
OCH₁](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6b0e48fb-2c03-4cd4-ad19-cc0211c37c23%2F011ad3e8-5bee-44ca-a47b-221fd57207fd%2Fqk4oa0k_processed.jpeg&w=3840&q=75)
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