UNIT4: Mechanisms and chemical reactions for aromatics

Flashcard maker : Lily Taylor
Nitration
What reaction converts a benzene into a nitro benzene
Concentrated hno3 in
Concentrated H2SO4
Below 55 degrees
Under reflux
What are the conditions and reagents of nitration
Electrophilic substitution
What is the mechanism of nitration
Concentrated sulphuric acid
What is the catalyst for nitration of benzene
Reduction of a nitrobenzene
How can you make a phenyl amine
Step 1: producing nitrobenzene
Electrophile substitution/ nitration of benzene

Step2: reduction of nitrobenzene to a phenyl amine

What are the two steps in the production of a phenyl amine
Methyl benzene can be nitrated to form trinitrotoluene = TNT
Which is an explosive
State a purpose for the nitration of benzene and the use of the product
Tin (Sn), concentrated HCl, NaOH (solution)
Heated under reflux
What are the conditions and reagents of the reduction of a nitrobenzene
(1) nitrobenzene compound is heated under reflux with the tin metal and concentrated HCl = forms a salt — [C6H5NH3+Cl-]

(2) an alakali (NaOH solution) is added to the salt to convert it into an aromatic amine = phenyl amine

What are the steps involved in the actual reduction of the nitrobenzene
There is no mechanism
What is the mechanism for the reduction of a nitrobenzene
Addition-elimination
What mechanism converts a phenyl amine into an N substituted amide
Acyl chloride
What reagent is used to convert a phenyl amine into an N substituted amide
Methyl chloride — [CH3COCl]
What would you use as your reagent if you wanted to convert phenyl amine into N- phenylethanamide

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