Cooperation of aryliminodimagnesium molecules: Deoxygenation of azoxyarenes by mono- and bifunctional reagents in comparison with that by phosphorus(III) reagents
proposed. This unfamiliar concept for reactions of magnesium reagents was studied further. Supporting evidence was obtained from the retarding effect of trimethylene chains of nitro [3.3] metacyclophanes and the derived azoxy [3.3] metacyclophanes and also from the effect of the length of bis-IDMg's central α,ω-polymethylenedioxy chain appropriate for azoxy deoxygenation. By comparison with deoxygenation