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Additional recommended knowledge
where X in the arene compound can be a sulfone, a sulfide, an ether or any substituent capable of dislodging from the arene carrying a negative charge. The terminal functional group in the chain end Y is able to act as a strong nucleophile for instance an alcohol, amine or thiol.
In one modification called the Truce-Smiles rearrangement the incoming nucleophile is sufficiently strong that the arene does not require this additional activation, for example when the nucleophile is an organolithium. This reaction is exemplified by the conversion of an aryl sulfone into an sulfinic acid by action of n-butyllithium: 
This particular reaction requires the interaction of the alkyllithium group ortho to the sulfone group akin a directed ortho metalation.
A conceptually related reaction is the Chapman rearrangement.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Smiles_rearrangement". A list of authors is available in Wikipedia.|