In the RELATIVE REACTIVITIES OF AROMATIC COMPOUNDS lab, after
brominating (electrophilic aromatic bromination of aniline,
anisole,...
In the RELATIVE REACTIVITIES OF AROMATIC COMPOUNDS lab, after
brominating (electrophilic aromatic bromination of aniline,
anisole, and acetanilide). Your yield was below 75%, suggest a
reason for the low yield, not counting human error
Lab was done on bromination of acetanilide, aniline,
anisole.
One of three compound was dissolved in glacial acetic acid.
Bromine/hydrobromic acid mixture was added and continue to stir for
20minutes (for anisole heat the reaciton at 80C for 40minutes)
afther 20 minutes, trasnfer the mixture to a flask containing
water and satuarted sodium bisulife solution. Place it in ice bath
and let it crystalize. Do recrystalizaiton.
1. If the yield was low, explain the reason for the low yield
(NOT...
Organic II lab: Relative Rates of Electrophilic Aromatic
Substitution
In this experiment, acetic acid is used as a catalyst for the
electrophilic substitution on aromatic rings. Would this catalyst
work with nitrobenzene? Explain your answer.
_______________________________________________
What is the difference between:
acid-base
oxidation-reduction
nucleophilic substitution
elimination
electrophilic addition
nucleophilic addition
electrophilic aromatic substitution
If you can provide an example, that would be great :)
through a mechanistic analysis of the electrophilic aromatic
substitution of acetamidobenzene, explain why this compound mainly
substitutes mainly para. Suggest a reason why the reaction rate of
acetamidobenzene with electophiles is slower than the rate of the
reaction of aniline with electrophiles.
Explain why the methoxy group is a good activator and ortho-
para director in electrophilic aromatic substitution reactions. Use
resonance forms and the Wheland intermediate in your answer.
What precautions must be taken when using concentrated
acids?
(a) At what position will electrophilic aromatic substitution
occur for the following compounds?
bromobenzene
nitrobenzene
benzoic acid
toluene
phenol
benzaldehyde
(b) In the list above, which compound is the most reactive?
Briefly explain.
(c) Which compound is the least reactive? Briefly explain.
3. Using the quantities given in the Procedure, calculate the
theoretical yields for the mononitration of (a) acetanilide and (b)
methyl benzoate. Record your results here and in your...
Why
is electrophilic aromatic substitution (preparation of methyl
m-nitrobenzoate important in the real world? Why is it useful and
why do people care about it? Please specifically state its
significance and how it benefits society. What should one learn
from performing this reaction?