The major product formed in the reaction given below is
To determine the major product formed in the given reaction, we need to analyze the mechanism and the role of the reagents. The reaction involves the use of concentrated sulfuric acid (H2SO4), a strong acid that can act as a dehydrating agent.
- Initial Structure: The compound is a diol with two hydroxyl groups (-OH) on adjacent carbon atoms.
- Role of Concentrated H2SO4:
- Concentrated sulfuric acid can protonate the hydroxyl groups, facilitating their removal as water (H2O), a basic dehydration process.
- Formation of a Carbocation:
- Upon dehydration of one of the hydroxyl groups, a carbocation is formed. Due to the structure, the positive charge is stabilized by resonance and potentially by hyperconjugation from adjacent aromatic rings, which are electron-donating through resonance.
- Rearrangement and Elimination:
- There is a possibility of rearrangement leading to a more stable carbocation, followed by elimination of the second hydroxyl group, leading to the formation of a double bond.
- Final Product:
- The end product is a more stable, conjugated system due to the involvement of the aromatic rings.
Based on this analysis, the major product formed is the one most consistent with these steps and the role of concentrated sulfuric acid.
Therefore, the correct answer is the product shown above, which matches the dehydration and stabilization process described.
Important Questions from Reaction Mechanisms
Of the following statements regarding dissociative substitution in an octahedral transition metal complex,
(a) High steric hindrance between ligands in the metal complex favors fast dissociation of ligand.
(b) Increased charge on the metal atom/ion of the complex favours the acceptance of electron pair of the entering ligands.
(c) A pentacoordinated intermediate is observed.
(d) Nature of the entering ligand significantly influences the reaction.
Which are correct?
Hydrolysis of the purple isomer of the complex [Co(tren)(NH3)Cl]2+ [tren = Tris(2‐aminoethyl)amine] under basic conditions results in two products. The geometry of the intermediate involved in this reaction is
- The correct statement about base hydrolysis of [Co(py) 4 Cl 2 ]+ (py = pyridine) is
For the given reaction
[*Co(L)n]2+ + [Co(L)n]3+ → [*Co(L)n]3+ + [Co(L)n]2+
the correct statement with respect to the rate of electron transfer process is
o-phen = o-phenanthroline; *Co is labeled atom
The most stable vanadium species in aqueous medium is
