Question

1)Describe the generalized Friedel-crafts reaction.
2)specifically for dimethoxybenze, why is it difficult to stop the reaction after one alkylation and indeed, why is the dialkylated product expected to be predominant.
3) give a detailed mechanism including all resonance isomers for intermediates (show electron flow) for the friedel-crafts reaction.
4) since both the t-butyl and the methoxy groups are activating groups for this reaction, why are 1,3,4-tri-t-butyl-2,5-dimethoxy benzene and 1,3,4,6-tetra-t-butyl-2,5-dimethoxy benzene not also produced by further alkylation of 1,3-di-t-butyl-2,5-dimethoxy benzene?

Answer 1