The following substituents affect the reactivity of an aromatic compound. Indica

Question

The following substituents affect the reactivity of an aromatic compound. Indicate the effect(s) that each group has upon the electron density of the aryl ring. Label 'NT' for no induction effect, '+I' for induction pushing electron density into the ring, or '-I' for induction pulling electron density out of the ring. Label 'NR' for no resonance effect, '+R' for resonance pushing electron density into the ring, or '-R' for resonance pulling electron density out of the ring. Indicate the overall effect each group has upon the reaction rate by labeling 'A' for activating and 'D' for deactivating.

Explanation / Answer

Effect of substituents on the aromatic ring

                                                   -CF3                       -OCOOCH3               -N(CH3)2     

Induction (NI/-I/+I)                        -I                                 -I                                +I

Resonance (NR/-R/+R)               NR                              +R                              +R

Activating/deactivating             deactivating              activating                    activating

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