Copper(I) chemistry of Bis(pyrazolyl)diphenylborate ligands: Formation of a heterocycle by Cu-mediated acetonitrile addition

J. L. Schneider, V. G. Young, W. B. Tolman

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Abstract

Cycloaddition of CH3CN to a Ph2B(pz) fragment was discovered during explorations of the reactions of the new ligands Ph2B(pzR,R′)2- (pz = 3,5-R,R′-pyrazolyl; R = Ph, R′ = H and R and R′ = CH3) with [Cu(CH3-CN)4]SbF6. Thus, while treatment of Na[Ph2B(pzPh,H)2] with [Cu(CH3CN)4]SbF6 afforded [Ph2B(pzPh,H)2]Cu-(HpzPh,H that exhibited the expected bidentate coordination of the bis(pyrazolyl)borate ligand in its X-ray crystal structure, the analogous reaction with Na[Ph2B-(pzCH3CH3)2] led to the product shown in the figure.

Original languageEnglish (US)
Pages (from-to)165-168
Number of pages4
JournalInorganic chemistry
Volume40
Issue number1
DOIs
StatePublished - Jan 1 2001

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