How do substituent groups (G) on an aromatic ring influence the course of electrophilic aromatic substitution?
Asked by Topperlearning User | 24th Jul, 2014, 03:46: PM
Such substituent groups affect the electrophilic aromatic substitution in two ways :
a) Reactivity or rate of reaction: The ones more reactive than benzene are activating, and those less reactive are deactivating.
b)Orientation : Whether Electrophilic group enters ortho , meta or para position.
Answered by | 24th Jul, 2014, 05:46: PM
- Ch3 ch2 cl
- Halogens are deactivators but ortho and para directors. Justify with suitable examples
- How do the activating and deactivating effects account for the orientation of entering E+referred?
- Explain that halogens are o-, p- directors, but are deactivating.
- Compare the rate of nitration under similar conditions of Ph-O-Me and Ph-S-Me. Explain
- Why is PhNO2 a suitable solvent for the Friedel-Crafts alkylation of PhBr while benzene is not?
- Account for the greater reactivity and the o, p-orientation in electrophilic substitution of biphenyl despite the electron-attracting inductive effect of the phenyl group.
- How can a t-butyl substituent be used as a blocking group in aromatic electrophilic substitutions?
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