/ Dictionary / Index F Friedel-Crafts reaction: Meaning and Definition of Find definitions for: Frie•del'-Crafts' reac"tion Pronunciation: (frē-del'krafts', -kräfts'), [key] a reaction for the synthesis of hydrocarbons and ketones by the alkylation or acylation of an aromatic compound in the presence of a catalyst, typically anhydrous aluminum chloride. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. friedcake Friedman Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language