а. Н2 + Pd-С b. H2 + Lindlar catalyst c. Na, NH3 d. CH3CO3H е. [1] CH3СO3Н;B (2] H2О, НО- f. [1] OsO4; [2] NaHSO3, H20 g. КMnO4, H2С, Но- h. [1] LIAIH4 / [2] H2O i. [1] O3 / [2] CH3SCH3 j. MCPBA k. Product in (j); then [1] LIAIH4 / [2] 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.
Write down the product formed when the reagent shown below reacts with the following reagents
![а. Н2 + Pd-С
b. H2 + Lindlar catalyst
c. Na, NH3
d. CH3CO3H
е. [1] CНЗСО3Н; [2] Н2О, НО-
f. [1] OsO4; [2] NaHSO3, H20
g. КMnO4, H20, НО-
h. [1] LIAIH4 / [2] H2O
i. [1] O3 / [2] CH3SCH3
j. MCPBA
k. Product in (j); then [1] LIAIH4 / [2] H2O](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F843f2890-ec31-4b03-9641-759216d6fffc%2F3e2b092c-3a59-4132-9cfb-96263773da32%2Fhhhl97d_processed.png&w=3840&q=75)
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