Process for the preparation of ortho-substituted arylmetal compounds and their reaction with electrophilic reagents
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United States of America Patent
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Jul 16, 2002
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app pub date -
Dec 17, 1999
filing date -
Dec 19, 1998
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Abstract
Ortho-substituted arylmetal compounds are prepared by deprotonation of aromatics which have a hydrogen atom in the ortho position relative to at least one halogen atom, one trifluoromethoxy group, one dialkylamino group, one nitrile group, one alkoxy group or one dialkylamido group. The arylmetal compounds can then be reacted with electrophilic reagents. Deprotonation of the aromatics is carried out using alkyl- or arylmetal compounds or metal hydrides in the presence of a catalytic amount of a secondary metal amide.
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