Amines

What is the hybridization of the nitrogen atom in amines?

Why is the $C-N-E$ bond angle in amines less than $109.5^\circ$ ?

What is the geometry of amines?

What is the IUPAC name for $CH_3NH_2$ ?

What is the common name for $C_6H_5NH_2$ ?

What is the IUPAC name for $H_2N-CH_2-CH_2-NH_2$ ?

How are N-substituted amines named in IUPAC?

Compare the boiling points of primary, secondary, and tertiary amines.

Why do alcohols have higher boiling points than amines of similar mass?

Are lower aliphatic amines soluble in water? Why?

Reagents used in the reduction of nitro compounds to amines?

Why is $Fe/HCl$ preferred for reducing nitro compounds?

What is Ammonolysis?

What is the major disadvantage of ammonolysis of alkyl halides?

Reagents used for reduction of nitriles to primary amines?

Reagents used for reduction of amides to amines?

What is Gabriel Phthalimide synthesis used for?

Why can't aromatic primary amines be prepared by Gabriel synthesis?

What is the Hoffmann bromamide degradation reaction?

How does the basicity of amines compare to ammonia?

Order of basicity of methylamines in aqueous phase?

Order of basicity of ethylamines in aqueous phase?

Why are aliphatic amines stronger bases than ammonia?

Why is aniline a weaker base than ammonia?

Product of acylation of amines?

What is the Carbylamine reaction?

Is the Carbylamine test given by secondary or tertiary amines?

Reaction of primary aliphatic amines with Nitrous acid?

Reaction of aromatic amines with Nitrous acid at low temp (273-278 K)?

What is Hinsberg's reagent?

Observation of reaction of primary amine with Hinsberg's reagent?

Observation of reaction of secondary amine with Hinsberg's reagent?

Observation of reaction of tertiary amine with Hinsberg's reagent?

Why is the product of primary amine + Hinsberg reagent soluble in alkali?

Why is the $-NH_2$ group ortho-para directing?

Product of bromination of aniline with bromine water?

How to get monobromoaniline from aniline?

Why does nitration of aniline give a significant amount of meta-isomer?

Product of sulphonation of aniline?

Does aniline undergo Friedel-Crafts reaction?

General formula of diazonium salts?

Why are aromatic diazonium salts more stable than aliphatic ones?

Sandmeyer reaction reagents?

Gattermann reaction reagents?

How to prepare Iodobenzene from diazonium salt?

How to prepare Fluorobenzene from diazonium salt?

Product of reduction of diazonium salts with $H_3PO_2$ or Ethanol?

Product of hydrolysis of diazonium salts (warming with water)?

Reaction of diazonium salt with $HBF_4$ followed by $NaNO_2/Cu, \Delta$ ?

Product of coupling benzene diazonium chloride with Phenol?

pH condition for coupling with Phenol?

Product of coupling benzene diazonium chloride with Aniline?

pH condition for coupling with Aniline?

Important use of quaternary ammonium salts?

Medical use of Novocain?

Medical use of Benadryl?

Is the nitrogen in Trimethylamine chiral?

Test to distinguish between Aniline and Ethylamine?

Test to distinguish between Methylamine and Dimethylamine?

Why does solvation effect stabilize protonated amines?

What is the chemical name and structure of the Hinsberg Reagent?

Observation when a Primary Amine reacts with Hinsberg reagent followed by aqueous $KOH$ ?

Observation when a Secondary Amine reacts with Hinsberg reagent followed by aqueous $KOH$ ?

Observation when a Tertiary Amine is treated with Hinsberg reagent?

What are the reagents and specific observation for a positive Carbylamine Test?

Which specific types of amines give a positive Carbylamine test?

What happens when a Primary Aliphatic Amine reacts with $HNO_2$ ( $NaNO_2/HCl$ ) at $0-5^\circ C$ ?

What happens when a Primary Aromatic Amine (e.g., Aniline) reacts with $HNO_2$ at $0-5^\circ C$ ?

What is the characteristic observation for Secondary Amines (Aliphatic or Aromatic) with $HNO_2$ ?

What is the purpose of Libermann's Nitroso Test?

How do Tertiary Aliphatic Amines react with $HNO_2$ ?

How do Tertiary Aromatic Amines (e.g., N,N-dimethylaniline) react with $HNO_2$ ?

What indicates a positive Azo Dye Test for primary aromatic amines?

What are the reagents and product for Hofmann's Mustard Oil Reaction?

How can a mixture of $1^\circ, 2^\circ, \text{and } 3^\circ$ amines be separated chemically?

Why can Gabriel Phthalimide synthesis prepare pure $1^\circ$ aliphatic amines but not $1^\circ$ aromatic amines (like Aniline)?

While acidic or basic hydrolysis can cleave N-alkylphthalimide to release the amine, what reagent is often preferred for milder cleavage, and what is ...

Write the balanced general equation for the Hoffmann Bromamide reaction of an amide ( $R-CONH_2$ ) and state how many moles of base are consumed pe...

What is the rate-determining rearrangement step in the Hoffmann Bromamide mechanism, and what is the stable intermediate formed immediately after this...

If the migrating group 'R' in the starting amide ( $R-CONH_2$ ) is chiral, what is the stereochemical outcome regarding that chiral center in the p...

Which is a stronger base: Benzenamine (Aniline) or Phenylmethanamine (Benzylamine)? Explain the structural reason.

Compare the basic strength of Aniline, N-Methylaniline, and N,N-Dimethylaniline. Does adding methyl groups to the nitrogen increase or decrease basici...

Why is the reduction of nitro compounds with Fe scrap and HCl preferred over Sn/HCl?

In the nitration of benzene using a mixture of conc. $H_2SO_4$ and conc. $HNO_3$ , what is the specific role of $HNO_3$ ?

Why does direct nitration of aniline yield a significant amount (47%) of the meta-nitro derivative, despite $-NH_2$ being an ortho-para director?

What is the role of Pyridine in the acylation reaction of amines with acetyl chloride?

Which reagents can convert Benzenediazonium chloride directly into Benzene?

Which is more volatile: $CH_3CH_2CH_2NH_2$ (I) or$(CH_3)_3N$ (II)? Why?

Under what pH conditions is the coupling reaction of aryldiazonium chloride with Aniline carried out?

Which of these will not undergo azo coupling with benzene diazonium chloride: Aniline, Phenol, Anisole, or Nitrobenzene?

What are the products when Methylamine ( $CH_3NH_2$ ) reacts with Nitrous acid ( $HNO_2$ )?

What is the IUPAC name of Allyl amine?

How does the product of Aniline bromination differ in $CS_2$ (non-polar) versus Aqueous (polar) medium?

Why is Acylation preferred over direct Alkylation to prepare mono-substituted amine derivatives?

Why does Sulphanilic acid (p-aminobenzenesulphonic acid) exist as a Zwitter ion?

Which specific species are involved/consumed in the Carbylamine test?

What reagent serves as the source of Nitrogen in the Gabriel synthesis of amines?

Why does acetylation of the $-NH_2$ group in aniline reduce its activating effect towards electrophilic substitution?

Which is the most reactive amine towards dilute HCl: $CH_3NH_2$ , $(CH_3)_2NH$ , or $(CH_3)_3N$ ?

Arrange $CH_3CH_2CH_3$ , $CH_3CH_2NH_2$ , and $CH_3CH_2OH$ in increasing order of dipole moment.

What is the best reagent to convert a Nitrile ( $R-CN$ ) into a Primary Amine ( $R-CH_2NH_2$ )?

Which method yields an amine with one carbon atom less than the starting material?

Which reaction is used to prepare Fluorobenzene from aniline? (Hint: Not Sandmeyer).

What is the product when Benzylamine ( $C_6H_5CH_2NH_2$ ) reacts with $HNO_2$ ?

Which of the following cannot be prepared by Sandmeyer’s reaction: Chlorobenzene, Bromobenzene, Iodobenzene?

Why is N,N-Diethylbenzenesulphonamide insoluble in alkali, while the N-Ethyl analogue is soluble?

What is the product when 2-phenylpropanamide is reacted with $LiAlH_4$ in ether?

What is a major disadvantage of preparing amines via Ammonolysis of alkyl halides?

In the bromination of aniline, the Arenium ion intermediate is stabilized by resonance. Which atom bears the positive charge in the most stable contri...