Hinsberg's reagent is
- $C_6H_5COCl$
- $CH_3COCI$
- $C_6H_5CH_2Cl$
- $C_6H_5SO_2Cl$
The Correct Option is D
Approach Solution - 1
Approach Solution -2
Hinsberg's reagent is an amine derivatizing reagent used for the identification and separation of primary, secondary, and tertiary amines. It is also known as benzenesulfonyl chloride or benzenesulfonic acid amide.
The reagent is \( \text{C}_6\text{H}_5\text{SO}_2\text{NH}_2 \), which is benzenesulfonamide. It reacts with amines to form sulfonamide derivatives, which can then be used to distinguish between primary, secondary, and tertiary amines based on their solubility and behavior in basic conditions.
Thus, the correct answer is option (D).
Approach Solution -3
Hinsberg’s reagent is benzenesulfonyl chloride (C\(_6\)H\(_5\)SO\(_2\)Cl), which is used in the Hinsberg test to distinguish primary, secondary, and tertiary amines. In this test, the amine reacts with Hinsberg’s reagent to form a sulfonamide derivative. The sulfonamide formed from a primary amine is soluble in alkaline solution, while that formed from a secondary amine is insoluble. Tertiary amines do not react with Hinsberg’s reagent.
Thus, the correct answer is C\(_6\)H\(_5\)SO\(_2\)Cl.
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Amines are usually formed from amides, imides, halides, nitro compounds, etc. They exhibit hydrogen bonding which influences their physical properties. In alkyl amines, a combination of electron releasing, steric and H-bonding factors influence the stability of the substituted ammonium cations in protic polar solvents and thus affect the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia. Amines being basic in nature, react with acids to form salts. Aryldiazonium salts, undergo replacement of the diazonium group with a variety of nucleophiles to produce aryl halides, cyanides, phenols and arenes.
How can you convert the following:
(i) Ethanoic acid to methanamine
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Concepts Used:
Amines
Amine is a type of compound which is derived from ammonia (NH3). According to Organic chemistry, they are basically classified as the functional groups of the organic nitrogen compounds that contain nitrogen atoms with a lone pair.
Amine - Types
Primary Amines:
It is formed when one hydrogen atom in ammonia is substituted by an alkyl or aromatic group. Amino acids and methyl amine are the best examples that why aromatic amines include aniline.
Secondary Amines:
Amines that have two organic substitutes either alkyl or aryl ones or both and are bound to the nitrogen together with one hydrogen are termed as secondary amines. For Example, Dimethylamine.
Tertiary Amines:
Tertiary Amines are the amines where the nitrogen consists of three organic substitutes. For example, Trimethylamine and EDTA.