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چکیده
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In the first part of this study, a simple and practical method for preparation of new
ionic liquids is described. These ionic liquids react with palladium (II) to produce
palladium (0) catalyst which is proved by ultra-violet spectroscopy. The use of
this new system in Pd-catalyzed Heck reaction provides a useful protocol for the
efficient carbon-carbon bond formation in the absence of base. Also, the use of
these ionic liquids as reducing agent, ligand and reaction media in base- and
copper-free palladium catalyzed sonogashira reaction of aryl halides is explained.In the other part of this study, Pd-catalyzed direct coupling reaction of
chlorodiphenylphosphine or dichlorophenylphosphine with aryl iodides for
preparation of arylphosphines in the presence of tetrabutylammonium bromide is
reported.
Reactions
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