2,3-Bis(bromo­meth­yl)-1,4-dimethoxy­benzene

In the title compound, C₁₀H₁₂Br₂O₂, all bond lengths and angles are generally within the normal ranges. The crystal packing is stabilized mainly by van der Waals forces.

1-Bromo-3,4-bis­(bromo­meth­yl)-2,5-dimethoxy­benzene

1,4-Dimeth­oxy-2,3-dimethyl­benzene was brominated under radical conditions to give the title compound, C₁₀H₁₁Br₃O₄. The bond lengths and angles are generally within the normal ranges. The crystal packing is stabilized by weak inter­molecular C—H...O and C—H...Br hydrogen bonds.

Diethyl 5-bromo-4,7-dimethoxy­indan-2,2-dicarboxyl­ate

The title compound, C₁₇H₂₁BrO₆, was prepared by nucleophilic alkyl­ation of 1-bromo-3,4-bis(bromomethyl)-2,5-di­methoxy­benzene. It crystallizes with two independent mol­ecules in the asymmetric unit. The bond lengths and angles are generally within the normal ranges. The crystal packing is stabilized by weak inter­molecular C—H...O hydrogen bonds and weak C—H...π(arene) inter­actions.

Diethyl 4,7-dimethoxy­indan-2,2-dicarboxylate

The title compound, C₁₇H₂₂O₆, crystallizes with two independent mol­ecules in the asymmetric unit. The bond lengths and angles are generally within the normal ranges. The crystal packing is stabilized by weak inter­molecular C—H...O hydrogen bonds and weak C—H...π(arene) inter­actions.