Chemistry-
General
Easy
Question
Observe the esterification mechanisms for primary and tertiary alcohols.
Type.1
Mechanism
Type. 2
Mechanism
- (X) is optically active while (Y) is optically inactive
- Both (X) and (Y) are optically active
- Both (X) and (Y) are optically inactive
- (X) is optically inactive while (Y) is optically active
The correct answer is: (X) is optically active while (Y) is optically inactive
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Observe the esterification mechanisms for primary and tertiary alcohols.
Type.1
Mechanism
Type. 2
Mechanism
In the above reaction (P) and (Q) are respectively :
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Type.1
Mechanism
Type. 2
Mechanism
In the above reaction (P) and (Q) are respectively :
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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 :
Mechanism :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement.
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General reaction :
Mechanism :
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chemistry-General
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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 :
Mechanism :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement.
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I)
II)
III)
IV)
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General reaction :
Mechanism :
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 reacted with Br2 in excess of strong base
I)
II)
III)
IV)
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