What is the major product of the following reaction sequence? D = deuterium, an isotope of hydrogen. Chiral products are racemic. H/Pdlindlar RCO,H HBr ? a. -D но O b. none of the other answers c. HO -D Br Od. Br -D но он -D
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.
![What is the major product of the following reaction sequence? D = deuterium, an isotope of hydrogen. Chiral products are racemic.
H,Pdlindlar RCO,H
-D
HBr
O a.
-D
но
b.
none of the other answers
Oc.
OH
-D
Br
d.
Br
-D
но
Oe.
OH
-D
Br](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F71c7b7fd-d571-4290-88ce-384331a57a9d%2F71170df0-add6-4ff0-ab07-82a196d16a72%2F8595vln_processed.png&w=3840&q=75)
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