1 research outputs found
A New Look at the Reactivity of TEMPO toward Diethylzinc
Reactions of diethylzinc with TEMPO
were investigated. Dropwise
addition of 1 equiv of TEMPO to Et<sub>2</sub>Zn at −10 °C
leads to the nitroxide complex EtZn(TEMPO) in high yield, whereas
upon addition of 2 equiv of TEMPO the corresponding homoleptic nitroxide
compound Zn(TEMPO)<sub>2</sub> is formed. Diffusion ordered NMR spectroscopy
experiments revealed that both zinc nitroxide compounds exist in monomeric
forms in solution, while single-crystal X-ray diffraction confirmed
their dimeric structure in the solid state