The reaction of tetrahalogeno-o-benzoquinones with 2,3-dimethylbut-2-ene
Abstract
The reaction of tetrachloro- and tetrabromo-o-benzoquinones with 2,3-dimethylbut-2-ene leads to products derived from overall direct addition, as well as from dehydrogenation; tetrachloro-o-benzoquinone also forms a novel 2 : 1 adduct.