Benzaldehyde → 1,1-Diphenylethylene

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Reaction Steps

For instance, vinylnaphthalene is prepared by reacting formylnaphthalene with a Grignard reagent such as methylmagnesium iodide, and then dehydrating. Phenyl(vinylphenyl)ethane is prepared by reacting diphenylethane with acetyl chloride in the presence of a Friedel-Crafts catalyst to obtain phenyl(acetylphenyl)ethane, reducing by sodium borohydride, and then dehydrating. Phenyl(isopropenylphenyl)ethane is prepared by reacting phenyl(formylphenyl)ethane with a Grignard reagent such as methylmagnesium iodide, and then dehydrating. 1,2-Diphenylethylene is prepared by reacting benzaldehyde with benzylmagnesium bromide, and then dehydrating. 1,2-Diphenylpropene is also prepared by a similar method. 1,1-Diphenylethylene is prepared by reacting diphenyl ketone with a Grignard reagent such as methylmagnesium iodide, and then dehydrating.

Provenance & Evidence