1. Give the structures of the two major products in the following reaction. 2. Draw the…
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Question “1. Give the structures of the two major products in the following reaction. 2. Draw the…”
1. Give the structures of the two major products in the
following reaction.
2. Draw the major organic product of the following
Friedel–Crafts alkylation. (An excess of benzene is present.)
3. Draw the structure of the major nitration product from the
reaction of nitric acid with 1,3-dimethylbenzene. Show all formal
charges.
Answer
Bromination is an electrophilic substitution reaction that uses reagent while the electrophile is HTMLmedia_tag_1$. The selectivity of substitution on a benzene ring depends on the type of substituent
present on it.
Fredal crafts’ alkylation reaction, also known as electrophilic substitution reaction, is where the alkyl group acts like an electrophile. It is substituted on an alkyl ring using Lewis acids such
An electrophilic aromatic substitution reaction (EAS) is a key class of organic reaction in organic synthesis. This is where the Nitro
can replace the hydrogen attached to the aromatic ring. Concentrated nitric acid HTML5$ or concentrated sulfuric acid HTML6$ are used to treat the aromatic organic compound. The reaction temperature should not exceed 323K. The aromatic ring is where the Nitro group is substituted.
Bromination is the addition of a bromine to a reactant molecule by an electrophilic substation mechanism. The reagent is HTML7$ and generates HTMLmedia_tag_8$ion, which acts as an electrophile to react with the nucleophilic centre of the benzene rings. The selectivity of substitution on the benzene ring depends on the type of substituent
present on it.
Fredal creates alkylation. In this reaction, an Alkylhalide reacts to a Lewis acid. This produces an electrophile which attacks the benzene rings and forms an alkylsubstitutedbenzene.
Nitration: This is an aromatic electrophilic substitution process in which
groups attack the electron-rich aromatic rings followed by the removal and production of hydrogen.
Below is the general reaction scheme:
Below is the definition of generation electrophile
Below are the resonance structures of chlorobenzene
The above structures show that an electrophile can only be substituted at the negative charge of the ‘ortho’ and ‘para’ carbons (nucleophilic centre). Resonance structures are a better representation of this.
Below are the products of reaction:
The reaction of (Chloromethyl), cyclohexane and
Below is the mechanism to attack electrophile
Below is the mechanism of formation of nitronium Ion.
Below are the products of reaction:
Ans:
Below are the structures of the major products involved in the reaction.
Below is the major organic product of Friedel-Crafts’ alkylation
Below is the structure of the major product of the reaction of nitric Acid with 1,3-dimethylbenzene.
Conclusion
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