Chemistry-
General
Easy
Question
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
- B & C both are correct
The correct answer is:
Related Questions to study
chemistry-
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Arrange the following amides according to their relative reactivity when react with Br2 in excess of strong base
I) 
II) 
III) 
IV) <img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/582432/1/1074906/Picture715.png" alt="" width="173" height="78"
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Arrange the following amides according to their relative reactivity when react with Br2 in excess of strong base
I)
II)
III)
IV) <img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/582432/1/1074906/Picture715.png" alt="" width="173" height="78"
chemistry-General
chemistry-
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Which of the following compound(s) cannot give Hofmann rearrangement :
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Which of the following compound(s) cannot give Hofmann rearrangement :
chemistry-General
physics-
A cuboid ABCDEFGH is anisotropic with 
. Coefficient of superficial expansion of faces can be
A cuboid ABCDEFGH is anisotropic with . Coefficient of superficial expansion of faces can be
physics-General
chemistry-
Statement - 1 : The base catalysed hydrolysis of easter order is
1) CH3 – COOCH3 > CH3COOC2H5 > CH3 – COOCH(CH3)2
2) 
Statement - 2 : 
Th is sterically as well as electronically controlled reaction.
Statement - 1 : The base catalysed hydrolysis of easter order is
1) CH3 – COOCH3 > CH3COOC2H5 > CH3 – COOCH(CH3)2
2)
Statement - 2 : Th is sterically as well as electronically controlled reaction.
chemistry-General
chemistry-
Final product is
Final product is
chemistry-General
chemistry-
Product ‘W’ is :–
Product ‘W’ is :–
chemistry-General
chemistry-
X, Y are
X, Y are
chemistry-General
chemistry-
chemistry-General
chemistry-
chemistry-General
chemistry-
What will be the most probable product when compound ‘X’ is treated with two equivalents of NaOH,
What will be the most probable product when compound ‘X’ is treated with two equivalents of NaOH,
chemistry-General
physics-
The load versus strain graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line
The load versus strain graph for four wires of the same material is shown in the figure. The thickest wire is represented by the line
physics-General
physics-
A stopper is used to block a small hole at the base of a vessel. Force exerted by liquid on stopper is F1 The stopper is then removed. Force experienced by vessel due to issuing liquid now is F2 neglect atmospheric pressure, F1/F2 = ?
A stopper is used to block a small hole at the base of a vessel. Force exerted by liquid on stopper is F1 The stopper is then removed. Force experienced by vessel due to issuing liquid now is F2 neglect atmospheric pressure, F1/F2 = ?
physics-General
chemistry-
The basically order of I, II and III is
The basically order of I, II and III is
chemistry-General
chemistry-
Aniline reacts with mixed acid (conc. HNO3 and conc. H2SO4 ) at 288 K to give P (51%), Q (47%) and R (51%), Q(47%) and R (2%). The major product(s) of the following reaction sequence is/are
Aniline reacts with mixed acid (conc. HNO3 and conc. H2SO4 ) at 288 K to give P (51%), Q (47%) and R (51%), Q(47%) and R (2%). The major product(s) of the following reaction sequence is/are
chemistry-General
chemistry-
An organic acid P (C11H12O2) can easily be oxidized to a dibasic acid which reacts with ethyleneglycol to produce a polymer decron. Upon ozonolysis, P gives an aliphatic ketone as one of the products. P undergoes the following reaction sequences to furnish R via Q. The compound P also undergoes another set of reactions to produce S
The compound S is
An organic acid P (C11H12O2) can easily be oxidized to a dibasic acid which reacts with ethyleneglycol to produce a polymer decron. Upon ozonolysis, P gives an aliphatic ketone as one of the products. P undergoes the following reaction sequences to furnish R via Q. The compound P also undergoes another set of reactions to produce S
The compound S is
chemistry-General
