KnowraWittig reactionLinked fromLinked fromThe 7 pages that link to Wittig reaction, each with the reason it gives.All 7Broader topic 3Related 2Compared with 2Olefin metathesisCompared with: Unlike metathesis, it forms a double bond by replacing a carbonyl oxygen with a carbon substituent.Organophosphorus chemistryBroader topic: It is a signature carbon–carbon bond-forming use of organophosphorus reagents.Atom economyBroader topic: It forms a stoichiometric phosphorus-containing by-product, illustrating a penalty in atom economy.Sodium hydrideRelated: Sodium hydride can deprotonate phosphonium salts to form the required ylide.Aldol condensationCompared with: It forms alkenes from carbonyl compounds without aldol addition or dehydration.PhosphineBroader topic: The ylide reagent is commonly prepared from a phosphine and an alkyl halide.Non-nucleophilic baseRelated: A non-nucleophilic base can generate the ylide from its phosphonium precursor.