Pyramidal electrophilic aromatic substitution

The most vital and crucial aspect of construction reactions are essentially comprise of such reactions which help in developing the basic carbon-carbon single bonds (perhaps on which the rest of the pyramid is made subsequently). Therefore, such reactions primarily need a carbon nucleophile in order to make available the electrons for the bond formation besides, a carbon electrophile to accept them appropriately. In usual practice, the nucleophiles are typified by carbanions or their equivalent substitutes and also the jr-bonds of benzene rings (aromatic) or alkenes (aliphatic). Likewise, the electrophiles are examplified by electron-deficient carbon-atoms commonly attributed by three t3rpes of entities, such as carbonyls conjugated carbonyls and C-atoms that rapidly become electron-deficient on being deprived of an attached functional group. 

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