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It depends upon incoming reagent, if nucleophile attacks on methanol then it undergoes nucleophilic reaction and if electrophile attacks on methanol then it undergoes electrophilic reaction i.e Methanol reacts with both....
Student of A-level, XII, From Moro, SOMIA AKBAR MEMON
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What is the mechanism of the sodium borohydride reaction with methanol?
The mechanism of the sodium borohydride reaction with methanol involves the transfer of a hydride ion from sodium borohydride to methanol, resulting in the formation of sodium methoxide and hydrogen gas. This reaction is a nucleophilic addition-elimination process, where the hydride ion acts as a nucleophile attacking the electrophilic carbon in methanol.
Why carbonyl compounds undergo nucleophilic addition reactions?
Carbonyl compounds are electrophilic due to the partially positive carbon atom. Nucleophiles are attracted to this electrophilic carbon atom, leading to a nucleophilic addition reaction. The nucleophile attacks the carbonyl carbon, forming a tetrahedral intermediate, which then collapses to form the final product.
Why the electrophilic substitution going to occur in furon thiophene and pyrole?
Electrophilic substitution occurs in furan, thiophene, and pyrrole because these compounds have a lone pair of electrons on the heteroatom (oxygen, sulfur, or nitrogen), making them nucleophilic and reactive towards electrophiles. The aromaticity of these compounds is also maintained during the substitution reaction, making them favorable candidates for electrophilic substitution.
What is electrophilic center?
An electrophilic center is a region in a molecule that is electron-deficient and is attracted to electron-rich species. These centers are where electrophilic reactions can occur, where the electrophile will attack nucleophiles to form new chemical bonds. Examples of electrophilic centers include carbocations and the positive ends of polar covalent bonds.
What are the properties and reactivity of the cycloheptatrienyl cation?
The cycloheptatrienyl cation is a stable aromatic compound with a planar structure. It is highly reactive due to its electron-deficient nature, making it prone to nucleophilic attack and electrophilic substitution reactions.
What is the mechanism of the sodium borohydride reaction with methanol?
The mechanism of the sodium borohydride reaction with methanol involves the transfer of a hydride ion from sodium borohydride to methanol, resulting in the formation of sodium methoxide and hydrogen gas. This reaction is a nucleophilic addition-elimination process, where the hydride ion acts as a nucleophile attacking the electrophilic carbon in methanol.
What is different between electrophilic and nucleophilic substation?
Electrophilic reagents are chemical species which in the course of chemical reactions, acquire electrons or a share in electrons from other molecules or ions. Nucleophilic reagents do the opposite of electrophilic reagents.
Why carbonyl compounds undergo nucleophilic addition reactions?
Carbonyl compounds are electrophilic due to the partially positive carbon atom. Nucleophiles are attracted to this electrophilic carbon atom, leading to a nucleophilic addition reaction. The nucleophile attacks the carbonyl carbon, forming a tetrahedral intermediate, which then collapses to form the final product.
Why halobenzenes are less reactive towards nucleophilic substitution reaction?
i think the question is wrong.benzene doesn't respond nucleophilic substitution respond electrophilic substitution it is electrophilic then due to resonance there is a partial double bond between carbon of benzene and halogens.so halobenzenes are chemically inert towards electrophilic substitution.
How do you write the nucleophilic substitution reactions for aniline and toluene?
aniline would go through an electrophilic substitution, it is a weak base
What is a hindered nucleophile?
A hindered nucleophile is a nucleophile that has steric hindrance around the nucleophilic center, making it less reactive due to difficulty in approaching the electrophilic site. This steric hindrance can result from bulky substituents nearby the nucleophilic atom.
Which class of organic molecules don't have nucleophilic and electrophilic centers?
Alkanes, a class of organic molecules, do not possess nucleophilic or electrophilic centers due to their saturated nature and lack of functional groups. They are composed solely of carbon and hydrogen atoms, connected by single bonds, which results in a relatively stable and inert structure. As a result, alkanes typically do not participate in reactions that involve nucleophiles or electrophiles.
Why the electrophilic substitution going to occur in furon thiophene and pyrole?
Electrophilic substitution occurs in furan, thiophene, and pyrrole because these compounds have a lone pair of electrons on the heteroatom (oxygen, sulfur, or nitrogen), making them nucleophilic and reactive towards electrophiles. The aromaticity of these compounds is also maintained during the substitution reaction, making them favorable candidates for electrophilic substitution.
Why is benzene undergoes electrophilic reaction rather then nucleophilic reaction?
Benzene predominantly undergoes electrophilic reactions because its aromatic structure stabilizes the developing positive charge on the carbon atoms during the reaction. The delocalized electron cloud in benzene makes it less reactive towards nucleophiles which prefer to attack electrophilic centers. This electronic stability of benzene is known as aromaticity.
What is electrophilic center?
An electrophilic center is a region in a molecule that is electron-deficient and is attracted to electron-rich species. These centers are where electrophilic reactions can occur, where the electrophile will attack nucleophiles to form new chemical bonds. Examples of electrophilic centers include carbocations and the positive ends of polar covalent bonds.
Are cyclic ethers more nucleophilic than free alcohols?
Yes, cyclic ethers are typically more nucleophilic than free alcohols due to the presence of the ring strain which increases the electrophilic character of the oxygen atom in the ring. This makes cyclic ethers more reactive towards electrophiles compared to free alcohols.
Why benzene undergo electrophilic substitution reaction easily and nucleophilic substution reaction with difficulty easily and?
the electron in benzene are delocalised making d ring to be elctron rich,thereby undergoing electrophilic substitution.benzene cannot undergo nucleophillic substitution,it can only undergo if it is substituted with an electron withdrawing group
