pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten

Base Information

• Chemical Name: pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten
• CAS No.: 228088-61-7
• Molecular Formula: C₂₂H₁₈N₂O₅W
• Molecular Weight: 574.245
• Mol file: 228088-61-7.mol

Synonyms:pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten

Chemical Property of pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten

Chemical Property:

Purity/Quality:

Safty Information:

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MSDS Files:

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Technology Process of pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten

There total 3 articles about pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten 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: 83.0%

pentacarbonyl(imidazolidin-2-ylidene)tungsten (88157-00-0) + benzyl chloride (100-44-7) → pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten (228088-61-7)

Guidance literature:

With NaH; In tetrahydrofuran; N2-atmosphere; stirring soln. of W-complex and NaH for 24 h at room temp., addn. of benzyl chloride (4 equiv.), stirring for 2 h; addn. of H2O, evapn., chromy. (SiO2, EtOAc:hexane 1:4); elem. anal.;

DOI:10.1021/om981023d

Reference yield: 83.0%

pentacarbonyl(imidazolidin-2-ylidene)tungsten (88157-00-0) + benzyl bromide (100-39-0) → pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten (228088-61-7)

Guidance literature:

With NaH; In not given; deprotonation of W-contg. compd. with an excess NaH followed by treatment of benzyl bromide; according to R.-Z. Ku et al., Organometallics, 1999, 18, 2145-2154;

DOI:10.1039/b814234c

Reference yield:

pentacarbonyl(imidazolidin-2-ylidene)tungsten (88157-00-0) → pentacarbonyl(1,3-dibenzylimidazolidin-2-ylidene)tungsten (228088-61-7)

Guidance literature:

With sodium hydride; In not given; (N2); treatment of W(CO)5(C3H6N2) with benzyl halide in the presence of NaH according to: Ku, R.-Z.; Huang, J.-C.; Cho, J.-Y.; Kiang, F.-M.; Reddy, K.R.; Chen, Y.-C.; Lee, K.-J.; Lee,J.-H.; Lee,G.-H.; Peng,S.-M.; Liu,S.-T. Organometallics 1999, 18, 2145;

DOI:10.1021/om900776j

upstream raw materials:

pentacarbonyl(imidazolidin-2-ylidene)tungsten

benzyl chloride

benzyl bromide

Downstream raw materials:

bis(1,3-dibenzylimidazolidin-2-ylidene)dichloropalladium(II)

cis-tetracarbonyl(1,3-dibenzylimidazolidin-2-ylidene)(triphenylphosphine)tungsten

fac-(1,3-dibenzylimidazolidin-2-ylidene)(P,P'-bis(diphenylphosphino)ethane)tricarbonyltungsten