bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I)

Base Information

• Chemical Name: bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I)
• CAS No.: 821772-59-2
• Molecular Formula: C₂₄H₂₉BrN₃ORh
• Molecular Weight: 558.323
• Mol file: 821772-59-2.mol

Synonyms:bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I)

Chemical Property of bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I)

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

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Technology Process of bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I)

There total 1 articles about bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I) 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: 84.0%

di-μ-chlorobis(norbornadiene)dirhodium(I) + 1-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)-3-mesitylimidazolium bromide (478799-31-4) → bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I) (821772-59-2)

Guidance literature:

With potassium tert-butoxide; In tetrahydrofuran; under N2, Schlenk setup; Rh complex (0.186 mmol) and potassium tert-butoxide (2.2 equiv.) stirred in THF at room temp. for 0.5 h, soln. added tosoln. of imidazolium salt (2 equiv.) in THF at -78°C, mixt. stir red at room temp. overnight; centrifugation, supernantant sepd. and evapd., residue washed with pentane, recrystd. from CH2Cl2/Et2O; elem. anal.;

DOI:10.1002/ejic.200400182

Reference yield: 80.0%

sodium tetrafluoroborate (13755-29-8) + bromo[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I) (821772-59-2) → [1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I) tetrafluoroborate (821772-63-8)

Guidance literature:

In dichloromethane; water; under N2, Schlenk setup; solid NaBF4 (2 equiv.) added to soln. of Rh complex in CH2Cl2, degassed water added, stirred vigorously for 30 min; org. layer decanted, aq. phase washed with CH2Cl2, combined org. layers dried over Na2SO4, filtered, filtrate evapd., residue washed with Et2O, dried under vac.; elem. anal.;

DOI:10.1002/ejic.200400182

upstream raw materials:

1-(4,4-dimethyl-4,5-dihydrooxazol-2-yl)-3-mesitylimidazolium bromide

Downstream raw materials:

[1-(4,5-dihydro-4,4-dimethyloxazol-2-yl)-3-mesitylimidazol-2-ylidene](η4-2,5-norbornadiene)rhodium(I) tetrafluoroborate