The major product ‘P’ for the following sequence of reactions is :
The major product ‘P’ for the following sequence of reactions is :
Show Hint
When solving reaction sequences:
Analyze each reagent step-by-step and apply known reaction mechanisms.
Clemmensen reduction (Zn/Hg, HCl) is used to reduce carbonyl groups to methylene (\(-\text{CH}_2-\)).
LiAlH\(_4\) reduces amides to amines.
The Correct Option is D
Solution and Explanation
1. First Step: Clemmensen Reduction (Zn/Hg, HCl):
The Clemmensen reduction converts the ketone group (\(-\text{C}= \text{O}\)) into a methylene (\(-\text{CH}_2-\)) group.
Starting compound:
\[\text{Ph-CH}_2-\text{CO-CH}_2-\text{CH}_2-\text{NH}_2.\]
After Clemmensen reduction:
\[\text{Ph-CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{NH}_2.\]
2. Second Step: LiAlH\(_4\) Reduction:
LiAlH\(_4\) reduces amides (\(-\text{CONH}_2\)) to amines (\(-\text{CH}_2-\text{NH}_2\)). In this compound, no further reduction occurs as the ketone has already been reduced to \(-\text{CH}_2-\) in the first step.
3. Final Product:
The major product (P) is:
\[\text{Ph-CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{NH}_2.\]
Final Answer: \(\text{Ph-CH}_2-\text{CH}_2-\text{CH}_2-\text{CH}_2-\text{NH}_2\).
Top Questions on Classification Of Organic Compounds
Match List-I with List-II: List-I
- JEE Main - 2025
- Chemistry
- Classification Of Organic Compounds
The correct increasing order of stability of the complexes based on \( \Delta \) value is:
- JEE Main - 2025
- Chemistry
- Classification Of Organic Compounds
- Which is a heterocyclic compound?
- KEAM - 2025
- Chemistry
- Classification Of Organic Compounds
- Among the given organic compounds, the total number of aromatic compounds is
- JEE Main - 2024
- Chemistry
- Classification Of Organic Compounds
- Given below are two statements: Statement I:
IUPAC name of \(HO–CH_2–(CH_2)_5–CH_2–COCH_3\) is 7-hydroxyheptan-2-one.
Statement II: 2-oxoheptan-7-ol is the correct IUPAC name for above compound.
In the light of the above statements, choose the most appropriate answer from the options given below:- JEE Main - 2024
- Chemistry
- Classification Of Organic Compounds
Questions Asked in JEE Main exam
- Let $\vec{a}=2\hat{i}-\hat{j}-\hat{k}$, $\vec{b}=\hat{i}+3\hat{j}-\hat{k}$ and $\vec{c}=2\hat{i}+\hat{j}+3\hat{k}$. Let $\vec{v}$ be the vector in the plane of $\vec{a}$ and $\vec{b}$, such that the length of its projection on the vector $\vec{c}$ is $\dfrac{1}{\sqrt{14}}$. Then $|\vec{v}|$ is equal to
- JEE Main - 2026
- Vector Algebra
A substance 'X' (1.5 g) dissolved in 150 g of a solvent 'Y' (molar mass = 300 g mol$^{-1}$) led to an elevation of the boiling point by 0.5 K. The relative lowering in the vapour pressure of the solvent 'Y' is $____________ \(\times 10^{-2}\). (nearest integer)
[Given : $K_{b}$ of the solvent = 5.0 K kg mol$^{-1}$]
Assume the solution to be dilute and no association or dissociation of X takes place in solution.- JEE Main - 2026
- Solutions
- The wavelength of photon 'A' is 400 nm. The frequency of photon 'B' is \(10^{16}\,\text{s}^{-1}\). The wave number of photon 'C' is \(10^{5}\,\text{cm}^{-1}\). The correct order of energy of these photons is:
- JEE Main - 2026
- General Chemistry
- Given below are two statements: Statement I: The increasing order of boiling point of hydrogen halides is HCl<HBr<HI<HF. Statement II: The increasing order of melting point of hydrogen halides is HCl<HBr<HF<HI. In the light of the above statements, choose the correct answer from the options given below:
- JEE Main - 2026
- General Chemistry
Inductance of a coil with \(10^4\) turns is \(10\,\text{mH}\) and it is connected to a DC source of \(10\,\text{V}\) with internal resistance \(10\,\Omega\). The energy density in the inductor when the current reaches \( \left(\frac{1}{e}\right) \) of its maximum value is \[ \alpha \pi \times \frac{1}{e^2}\ \text{J m}^{-3}. \] The value of \( \alpha \) is _________.
\[ (\mu_0 = 4\pi \times 10^{-7}\ \text{TmA}^{-1}) \]- JEE Main - 2026
- Ray optics and optical instruments