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Wittig Reaction - onsbond to aken fr om Wikipedia.or g...

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bons (PAH), anthracene is not carcinogenic but has been recently included in the Substances of Very High Concern list (SVHC) by the Euro one bond to a carbon bearing a negative charge and two substituents, commonly alkyl groups. Ylids can be 'stabilised' or 'non-stabilised'. No ormation taken from Wikipedia.org Fadi Alyass (003973694) S TEREOSPECIFIC W ITTIG S YNTHESIS 2.3.2010 Purpose The wittig reaction is used for the synthesis of alkenes, and to create new carbon-carbon bonds. It uses a compound with a carbonyl as the electrophile, and a triphenyl-phosphorus ylide. The wittig reaction joins 2 carbons a phosphorus, and an oxygen (from the carbonyl). The “driving force” of this reaction is the Phosphorous-Oxygen bond. Phosphorous and Oxygen have a very high affinity for each other. In fact, they are a key component in all carbon-based life, because their bonds carry such great energy (key component of ATP). Reagents - 9-anthraldehyde (0.50g) C 15 H 11 O - Benzyltriphenylphosphonium (0.95g) C 18 H 15 P - Methylene Chloride (about 10mL) CH 2 Cl 2 - 50% Sodium Hydroxide (1.25mL) NaOH Product Data and Balanced Equation: .
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Mechanism
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