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

doi:10.1021/ic000637j

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

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

Cycloaddition of CH₃CN to a Ph₂B(pz) fragment was discovered during explorations of the reactions of the new ligands Ph₂B(pz^R,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(pz^Ph,H)₂] with [Cu(CH₃CN)₄]SbF₆ afforded [Ph₂B(pz^Ph,H)₂]Cu-(Hpz^Ph,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-(pz^CH₃CH₃)₂] led to the product shown in the figure.

Original language	English (US)
Pages (from-to)	165-168
Number of pages	4
Journal	Inorganic chemistry
Volume	40
Issue number	1
DOIs	https://doi.org/10.1021/ic000637j
State	Published - Jan 1 2001

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@article{c61b31ea4bd14a3da68a481fc98baa3b,

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

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.",

author = "Schneider, {J. L.} and Young, {V. G.} and Tolman, {W. B.}",

year = "2001",

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T1 - Copper(I) chemistry of Bis(pyrazolyl)diphenylborate ligands

T2 - Formation of a heterocycle by Cu-mediated acetonitrile addition

AU - Schneider, J. L.

AU - Young, V. G.

AU - Tolman, W. B.

PY - 2001/1/1

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N2 - 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.

AB - 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.

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