Because the electron density surrounding the nitrogen atom in methylamine is larger than that of phenylamine, the lone pair of electrons on the nitrogen atom are more readily transferred to a proton by methylamine than by phenylamine. Methylamine is a more powerful base.
The lone pair of the nitrogen atom in the amine group is "pulled in" towards this delocalisation, making the lone pair less accessible to attach to an incoming H+ ion. As a result, because its lone pair is less accessible, phenylamine is a weaker base than ethylamine. This argument has been supported by computational studies which show that the N-H bond in phenylamine is stronger than the C-H bond in ethylamine.
Because it has been employed as an election-donation group, methylamine is a stronger base than ammonia (methyl). As a result, the electron density of nitrogen atoms rises. As a result, it is a stronger base, whereas ammonia lacks an electron donating group. As a result, when compared to methylamine, it is a weak base.
Both PhCH2- and CH3CH2-are electron donating groups (thus benzylamine and ethylamine are stronger bases than ammonia), but the question is which of the two is more electron donating, which would be the CH3CH2-since the phenyl ring is somewhat electron withdrawing, as you mentioned. As a result, ethylamine is the more powerful base.
The answer is that both are about the same strength but since ethylamine has one additional hydrogen atom this means it can donate its electrons more easily than benzylamine.
Because the lone pair of electrons on the nitrogen atom in benzylamine is delocalized, it is a stronger base than aniline. In aniline, the lone pair of electrons on the nitrogen atom becomes delocalized. The molecular mass of benzylamine is greater than that of aniline. Therefore, benzylamine is a stronger base than aniline.
In conclusion, benzylamine is a strong base because its lone pair of electrons are delocalized over the whole molecule.
Only one of the hydrogen atoms in the ammonia molecule has been changed in primary amines. The most basic amine, CH3NH2, might be referred to as methylamine, methanamine, or aminomethane. At this level, the most popular term is methylamine, while the second compound depicted above is often known as ethylamine. Ammonia itself is a polar molecule, but both methylamine and ethylamine are nonpolar molecules.
Primary amines contain only one amino group, which is located at their center. They can be represented by the formula R-NH2 where R represents any organic group including alkyl, aryl, and heterocyclic groups. In general, biological activity increases with chain length up to about 12 carbons for a phenyl ring and then decreases beyond that point. Longer chains may be toxic.
Methylamine is not very reactive, but it does react with water to form ammonium hydroxide, which is used as a fertilizer and cleanser in gasoline stations. It also forms salts with various acids such as hydrochloric acid and nitric acid.
Ethylamine is more reactive than methylamine because it contains an additional electron pair in its valence shell. This causes it to participate in more chemical reactions, especially those involving electrophiles. Ethylamine is used in the manufacture of drugs, pesticides, and fertilizers. It is also a component of cigarette smoke.
Because diethylamine is an excellent base and can take a proton, it is required in excess to deprotonate the charged nitrogen in a-chloro-2,6-dimethylacetanilide. It is also used as a trap for amines that may be present in food.
Diethylamine is a colorless liquid that is soluble in both water and alcohol. It is slightly toxic by ingestion or inhalation and has a pungent odor like that of soap. The chemical formula for diethylamine is CH3CH2NHCH3. It has a molecular weight of 68.09 g/mol.
Diethylamine is used in the manufacture of various products including pesticides, pharmaceuticals, and rubber chemicals. It is also used as a component of some flame retardants and antiknock additives for gasoline.
People who work with diethylamine often wear protective clothing and equipment such as gloves, goggles, and a face mask. They should also use air purifying respirators when they are working in areas where there is evidence of contamination from this chemical.
The toxicity of diethylamine is so slight that only small amounts are needed to produce a result.