bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

Base Information

Chemical Name:bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate
CAS No.:887259-12-3
Molecular Formula:BF₄*C₃₆H₂₉OW
Molecular Weight:748.28
Hs Code.:

Synonyms:

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

Chemical Property:

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Technology Process of bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

There total 1 articles about bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 80.0%

: 67969-82-8
tetrafluoroboric acid diethyl ether

: 12128-81-3
tricarbonyl(η6-cycloheptatriene)tungsten

: 501-65-5
diphenyl acetylene

: 887259-12-3
bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

Guidance literature:: In dichloromethane; under N2; HBF4*OEt2 added dropwise to stirred soln. of W complex in CH2Cl2 at -78°C; 5 min; warmed to room temp.; stirred for 30 min; Ph2C2 added; stirred for 30 min; solvent removed under reduced pressure; washed with cold dry ether; recrystd. from CH2Cl2-Et2O; isolated by filtration; elem. anal.;
DOI:10.1021/om060111s

Reference yield: 90.0%

: 887259-12-3
bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

: 22560-16-3
lithium triethylborohydride

: 887259-15-6
bis(η2-diphenylacetylene)(carbonyl)(σ,η3-cycloheptenediyl)tungsten(II)

Guidance literature:: In tetrahydrofuran; diethyl ether; under N2; THF soln. of LiBHEt3 added dropwise to stirred soln. of W complex in ether at -78°C; slowly warmed to room temp. over 30 min; filtered through Celite; filtrate dried under reduced pressure; cromd. (silica gel, n-hexane); solvent removed in vac.; elem. anal.;
DOI:10.1021/om060111s

Reference yield:

: 887259-12-3
bis(η2-diphenylacetylene)(carbonyl)(η5-cycloheptadienyl)tungsten(II) tetrafluoroborate

: 591-51-5
phenyllithium

: bis(η2-diphenylacetylene)(carbonyl)(σ,η3-Ph-cycloheptenediyl)tungsten(II)

: bis(η2-diphenylacetylene)(carbonyl)(σ,η3-Ph-cycloheptenediyl)tungsten(II)

Guidance literature:: In tetrahydrofuran; diethyl ether; under N2; THF soln. of PhLi added dropwise to stirred soln. of W complexin ether at -78°C; slowly warmed to room temp. over 30 min; filtered through Celite; filtrate dried under reduced pressure; cromd. (alumina, n-hexane-THF); solvent removed in vac.; mixt. of two isomers (3:1) obtained, total yield 75%;
DOI:10.1021/om060111s