The oxidative coupling of benzoic acids with internal alkynes effectively proceeds in the presence of [Cp*RhCl2](2) and Cu(OAc)(2)center dot H2O as catalyst and oxidant, respectively, to produce the corresponding isocoumarin derivatives. The copper salt can be reduced to a catalytic quantity under air. Interestingly, by using [Cp*IrCl2](2) in place of [Cp*RhCl2](2), the substrates undergo 1:2 coupling accompanied by decarboxylation to afford naphthalene derivatives exclusively. In this case, Ag2CO3 acts as an effective oxidant.
机构:Univ So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USA
Conley, Brian L.
Tenn, William J., III
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Young, Kenneth J. H.
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Ganesh, Somesh K.
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Meier, Steven K.
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Ziatdinov, Vadim R.
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Mironov, Oleg
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Oxgaard, Jonas
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Gonzales, Jason
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Goddard, William A., III
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Periana, Roy A.
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Univ So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USAUniv So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USA
机构:Univ So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USA
Conley, Brian L.
Tenn, William J., III
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Tenn, William J., III
Young, Kenneth J. H.
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Ganesh, Somesh K.
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Meier, Steven K.
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Oxgaard, Jonas
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Oxgaard, Jonas
Gonzales, Jason
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Univ So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USAUniv So Calif, Donald P & Katherine B Loker Hydrocarbon Res Inst, Los Angeles, CA 90089 USA