A student, Flick Flaskflinger, in his twelfth year of graduate work, needed to prepare ethylmagnesium brdmide from ethyl bromide and magnesium, but found that his laboratory was out of diethyl ether. From his years of accumulated knowledge, he recalled that Grignard reagents will form in other ether solvents. He therefore attempted to form ethylmagnesium bromide in the ether C2H5-O-CH2CH2OH and was shocked to find that no Grignard reagent was present after several hours' stirring. Explain why Flick's reaction failed.