| http://www.w3.org/ns/prov#value | - The preferred temperature for the solution is ???77??? C. A strong base dissolved in a non-protic, inert solvent, such as hexanes, THF or ether, is added dropwise while maintaing a reaction temperature below 0??? C. and preferrably below ???60??? C. The preferred bases are alkyl lithium reagents and the most preferred is sec-butyl lithium.
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