Biologically active adrenaline and ephedrine used to increase blood pressure contain :
- Primary amino group
- Secondary amino group
- Tertiary amino group
- Quaternary ammonium salt
The Correct Option is B
Approach Solution - 1
- Adrenaline and ephedrine are both sympathomimetic amines that act on the sympathetic nervous system, primarily used to increase blood pressure.
- These compounds both contain a secondary amino group, which means the nitrogen atom is bonded to two carbon atoms (part of an alkyl or aryl group) and one hydrogen atom.
- The secondary amino group is critical for their biological activity, as it plays a key role in interacting with receptors that regulate blood pressure.
Thus, the correct answer is (B) Secondary amino group.
Approach Solution -2
Both adrenaline (epinephrine) and ephedrine have a secondary amino group in their structure, which is crucial for their biological activity in stimulating the central nervous system and increasing blood pressure.
Top Questions on Amines
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- Write short notes on the following:
(i) Carbylamine reaction
(ii) Hofmann–bromamide reaction
(iii) Diazotisation - The purification method based on the following physical transformation is: \[ {Solid} \xrightarrow{{Heat}} {Vapour} \xrightarrow{{Cool}} {Solid} \]
The total number of compounds from below when treated with hot KMnO4 giving benzoic acid is:
- Identify correct statements: (A) Primary amines do not give diazonium salts when treated with \({NaNO}_2\) in acidic condition.
(B) Aliphatic and aromatic primary amines on heating with \({CHCl}_3\) and ethanolic \({KOH}\) form carbylamines.
(C) Secondary and tertiary amines also give carbylamine test.
(D) Benzenesulfonyl chloride is known as Hinsberg’s reagent.
(E) Tertiary amines react with benzenesulfonyl chloride very easily.
Choose the correct answer from the options given below:
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