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Turning down the heat: The first room temperature Pd-catalyzed synthesis of phenols from aryl bromides and chlorides is presented. Stoichiometric studies of Pd-mediated hydroxylation of aryl halides employing a bulky imidazolyl-phosphine ligand and the novel palladium precursor [Pd(cod)(CH2SiMe3)2] led to development of efficient catalytic synthesis of phenols under ambient conditions (see scheme; Ad=adamantyl, cod=1,5-cyclooctadiene).
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Sergeev et al. (2009) studied this question.
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