A New, General Route to (μ-Bis(carbene))ditungsten Complexes: X-ray Crystal Structure of (CO)5W(C(OCH3)CH2[CH(CH2)3C(CH2CH=CH2)]C-(OCH3)|W(CO)5

David W. Macomber; Mu Huang Hung; Akhilkumar G. Verma; Robin D. Rogers

doi:10.1021/om00099a034

A New, General Route to (μ-Bis(carbene))ditungsten Complexes: X-ray Crystal Structure of (CO)₅W(C(OCH₃)CH₂[CH(CH₂)₃C(CH₂CH=CH₂)]C-(OCH₃)|W(CO)₅

David W. Macomber, Mu Huang Hung, Akhilkumar G. Verma, Robin D. Rogers

Medicine - Geriatrics, Palliative and Primary Care (GPPC)

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

50 Scopus citations

Abstract

CR¹R²]^-Li⁺(2) react with α, β-unsaturated carbene complexes (Co)5W[C(Och₃)C(R⁴)=CHR³] (3) to produce the intermediate α-lithio (μ-bis(carbene))ditungsten anions (CO)₅W[C(OCH₃)C(R¹)(R²)CH(R³)C(R⁴)C(OCH₃)]W(CO)₅^-Li⁺(4), which were subsequently quenched with electrophilic reagents (E-X = CH₃OSO₂CF₃, CH₂=CHCH₂Br, PhCH₂Br, Me₃SiCl, HCI) to afford good yields of the desired (μ-bis-(carbene))ditungsten complexes (CO)₅W[C(OCH₃)C-(R¹)(R²)CH(R³)C(R⁴)(R⁵)C(OCH₃)]W(CO)₅(5). Complex 5j (R¹ = R² = H; R³, R⁴ = (-CH₂-)₃; R⁵ = CH₂CH=CH₂), which was the only diastereomer formed, was characterized by X-ray crystallography and showed the two large tungsten carbene fragments to be on the same side of the cyclopentane ring. α-Lithio carbene anions (CO)₅W[C(OCH₃)-.

Original language	English (US)
Pages (from-to)	2072-2074
Number of pages	3
Journal	Organometallics
Volume	7
Issue number	9
DOIs	https://doi.org/10.1021/om00099a034
State	Published - Sep 1988

Access

10.1021/om00099a034

OpenUrl availability

Full text

Cite this

@article{912c93262b63466e8feb05cab86068c4,

title = "A New, General Route to (μ-Bis(carbene))ditungsten Complexes: X-ray Crystal Structure of (CO)5W(C(OCH3)CH2[CH(CH2)3C(CH2CH=CH2)]C-(OCH3)|W(CO)5",

abstract = "CR1R2]-Li+(2) react with α, β-unsaturated carbene complexes (Co)5W[C(Och3)C(R4)=CHR3] (3) to produce the intermediate α-lithio (μ-bis(carbene))ditungsten anions (CO)5W[C(OCH3)C(R1)(R2)CH(R3)C(R4)C(OCH3)]W(CO)5-Li+(4), which were subsequently quenched with electrophilic reagents (E-X = CH3OSO2CF3, CH2=CHCH2Br, PhCH2Br, Me3SiCl, HCI) to afford good yields of the desired (μ-bis-(carbene))ditungsten complexes (CO)5W[C(OCH3)C-(R1)(R2)CH(R3)C(R4)(R5)C(OCH3)]W(CO)5(5). Complex 5j (R1 = R2 = H; R3, R4 = (-CH2-)3; R5 = CH2CH=CH2), which was the only diastereomer formed, was characterized by X-ray crystallography and showed the two large tungsten carbene fragments to be on the same side of the cyclopentane ring. α-Lithio carbene anions (CO)5W[C(OCH3)-.",

author = "Macomber, {David W.} and Hung, {Mu Huang} and Verma, {Akhilkumar G.} and Rogers, {Robin D.}",

year = "1988",

month = sep,

doi = "10.1021/om00099a034",

language = "English (US)",

volume = "7",

pages = "2072--2074",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "9",

}

TY - JOUR

T1 - A New, General Route to (μ-Bis(carbene))ditungsten Complexes

T2 - X-ray Crystal Structure of (CO)5W(C(OCH3)CH2[CH(CH2)3C(CH2CH=CH2)]C-(OCH3)|W(CO)5

AU - Macomber, David W.

AU - Hung, Mu Huang

AU - Verma, Akhilkumar G.

AU - Rogers, Robin D.

PY - 1988/9

Y1 - 1988/9

N2 - CR1R2]-Li+(2) react with α, β-unsaturated carbene complexes (Co)5W[C(Och3)C(R4)=CHR3] (3) to produce the intermediate α-lithio (μ-bis(carbene))ditungsten anions (CO)5W[C(OCH3)C(R1)(R2)CH(R3)C(R4)C(OCH3)]W(CO)5-Li+(4), which were subsequently quenched with electrophilic reagents (E-X = CH3OSO2CF3, CH2=CHCH2Br, PhCH2Br, Me3SiCl, HCI) to afford good yields of the desired (μ-bis-(carbene))ditungsten complexes (CO)5W[C(OCH3)C-(R1)(R2)CH(R3)C(R4)(R5)C(OCH3)]W(CO)5(5). Complex 5j (R1 = R2 = H; R3, R4 = (-CH2-)3; R5 = CH2CH=CH2), which was the only diastereomer formed, was characterized by X-ray crystallography and showed the two large tungsten carbene fragments to be on the same side of the cyclopentane ring. α-Lithio carbene anions (CO)5W[C(OCH3)-.

AB - CR1R2]-Li+(2) react with α, β-unsaturated carbene complexes (Co)5W[C(Och3)C(R4)=CHR3] (3) to produce the intermediate α-lithio (μ-bis(carbene))ditungsten anions (CO)5W[C(OCH3)C(R1)(R2)CH(R3)C(R4)C(OCH3)]W(CO)5-Li+(4), which were subsequently quenched with electrophilic reagents (E-X = CH3OSO2CF3, CH2=CHCH2Br, PhCH2Br, Me3SiCl, HCI) to afford good yields of the desired (μ-bis-(carbene))ditungsten complexes (CO)5W[C(OCH3)C-(R1)(R2)CH(R3)C(R4)(R5)C(OCH3)]W(CO)5(5). Complex 5j (R1 = R2 = H; R3, R4 = (-CH2-)3; R5 = CH2CH=CH2), which was the only diastereomer formed, was characterized by X-ray crystallography and showed the two large tungsten carbene fragments to be on the same side of the cyclopentane ring. α-Lithio carbene anions (CO)5W[C(OCH3)-.

UR - http://www.scopus.com/inward/record.url?scp=0000339319&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000339319&partnerID=8YFLogxK

U2 - 10.1021/om00099a034

DO - 10.1021/om00099a034

M3 - Article

AN - SCOPUS:0000339319

SN - 0276-7333

VL - 7

SP - 2072

EP - 2074

JO - Organometallics

JF - Organometallics

IS - 9

ER -

A New, General Route to (μ-Bis(carbene))ditungsten Complexes: X-ray Crystal Structure of (CO)₅W(C(OCH₃)CH₂[CH(CH₂)₃C(CH₂CH=CH₂)]C-(OCH₃)|W(CO)₅

Abstract

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this