Question

Name: TA: Partner: 1) Arrange the assigned benzene substituents in order of reactivity in EAS reactions. Explain the trend (1.5 points) 2) Use your knowledge of resonance, aromaticity, and general stability trends to analyze the following sets of reactions, explain why each reaction is fast or slow (1.5 points) CH3OH CH3OH fast slow + Br

Answer 1

Hello, i am sorry to say that as per Chegg guidelines experts can answer only one full question that too first question only. I request you to please post remaining question as separate one since my allotted time could not permit me to answer more than one question also. Thank you in advance for your continued support to us.

EAS (Electrophilic Aromatic Substitution) is influenced by presence of the electron donating group (EDG) or electron withdrawing (EWG) groups present on the aromatic ring (benzene ring).

EDG enhances rate of further substitution, while EWG declines rate of substitution. Because EDG increases availability of electrons on ring system, whereas EWG decreases electron density around ring system. We know benzene ring always carries negative charge in the ring (behaves as electron rich species - so that we call it as nucleophile (nucleus (positive charge) loving species), hence we can replace an atom or group on ring as a electrophile (electron loving species - means such atom or group will be removed as positive charge species - electron loving species - electrophiles)

EDG ==> -NHCOR, -NHR, -SR - all these groups are attached to benzene ring directly with 'N' and 'S' atoms, which can donate a pair of electrons (lone pair of electrons), hence increases rate of substitution.

order will be: -NHR > -NHCOR > -SR

while -COOR group is EWG

Final answer: -NHR > -NHCOR > -SR > -COOR

Name: TA: Partner: 1) Arrange the assigned benzene substituents in order of reactivity in EAS reactions. Explain the trend (1.5 points) month > Artly > pomen > pio decreasing order of reactivity

Hope this helped you!

Thank You So Much!

Please Rate this answer as you wish.("Thumbs Up")