Benzene reactions Flashcards
What group is added when benzene undergoes nitration?
NO2
How do you create the NO2+ ion?
HNO3 + H2SO4 -> NO2+ +HSO4- + H2O
What are the reagents and conditions for the nitration of benzene
Conc H2SO4
HUR
What is the name of the mechanism when a NO2+ ion is substituted on?
Electrophilic substitution
What is the reaction for the production of the halogen radical used with benzene?
R2+ FeBr3 -> R+ + FeBr4-
What is produced when a halogen is substituted on a benzene?
-halogen benzene
-HR
What the definition of alkylation?
Substitution with r using RCl
What is the halogen carrier for alkylcarrier?
AlCl3
What is the other product for alkylation?
RCl
What is added in acylation process
-Acycl Chloride
-COCl
What are the products for the Halogenation of a phenol?
-2,4,6 halogen molecule with benzene
-3HR
What are the observations when phenol undergoes halogenation?
-Colour change from orange to colourless
-White precipitate formed
What is the name of a NH2 group bonded to a benzene ring?
Phenylamine
What are the observations for the formation of phenylamine?
Orange to colourless only
Draw the mechanism of nitration of benzene
-arrow starting from benzene ring to NO2+ ion
-2 lines coming off from benzene, U shape in benzene with + in middle, arrow coming from middle of line to centre from H+
- Nitrobenzene and H+ ion products
