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The Woodward cis-hydroxylation is the chemical reaction of alkenes with iodine and silver acetate in wet acetic acid to form cis-diols. The reaction is named after its discoverer, Robert Burns Woodward.
Additional recommended knowledge
The reaction of the iodine with the alkene is catalyzed by the silver acetate, thus forming an iodinium ion (3). The iodinium ion is opened via SN2 reaction by acetic acid (or silver acetate) to give the first intermediate, the iodo-acetate (4). Through anchimeric assistance, the iodine is displaced via another SN2 reaction to give an oxonium ion (5), which is subsequently hydrolyzed to the give the mono-ester (6).
The mono-ester can be hydrolyzed using potassium hydroxide to form the corresponding diol.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Woodward_cis-hydroxylation". A list of authors is available in Wikipedia.|