XI11 XIV was also made of the reaction between 9-phenanthrylmagnesium bromide and the ethyl ester of levulinic acid, in analogy with a condensation reported by Grignard, 6 but the chief product was phenanthrene. A very satisfactory route to the desired hydrocarbon was then found in the utilization of the recently described method of preparing arylacetaldehydes.'w (9-Phenanthryl)-propionaldehyde (XII) was obtained readily by the ...
