What is sulfonation reaction?
What is sulfonation reaction?
Aromatic sulfonation is an organic reaction in which a hydrogen atom on an arene is replaced by a sulfonic acid functional group in an electrophilic aromatic substitution. Aryl sulfonic acids are used as detergents, dye, and drugs.
What is the electrophile for Sulphonation of benzene?
The electrophile involved in the sulphonation of benzene is SO3.
Which electrophile formed in Sulphonation reaction?
Sulfur trioxide
The formation of the electrophile Sulfur trioxide is an electrophile because it is a highly polar molecule with a fair amount of positive charge on the sulfur atom. It is this which is attracted to the ring electrons.
Why does benzene give electrophilic substitution reaction?
Benzene is a planar molecule having delocalized electrons above and below the plane of the ring. Hence, it is electron-rich. As a result, it is highly attractive to electron-deficient species i.e., electrophiles. Therefore, it undergoes electrophilic substitution reactions very easily.
What is an electrophilic aromatic substitution for benzene?
Electrophilic Aromatic Substitution • benzene’s pi electrons are available to attack a strong electrophile to give a carbocation • Resonance-stabilized carbocation is called a sigma complexbecause the electrophile is joined to the benzene ring by a new sigma bond
What is the sulfonation of benzene?
Sulfonation of benzene is a process of heating benzene with fuming sulphuric acid (H 2SO 4 +SO 3) to produce benzenesulfonic acid.
What is the catalyst used in the bromination of benzene?
Electrophilic Aromatic Substitution: Bromination In the brominationof benzene a catalyst, such as FeBr3, is used © 2013 Pearson Education, Inc. 88 Electrophilic Aromatic Substitution: BrominationPreliminary Step • Electrophile must be activated before electrophilic aromatic substitution can occur
What is the electrophilic aromatic substitution for HNO3?
17 Electrophilic Aromatic Substitution: Nitration • Sulfuric acid acts as a catalyst, allowing the reaction to be faster and at lower temperatures. • HNO3and H2SO4react together to form the electrophile of the reaction: nitroniumion (NO2+).
