Bis(ethylcyclopentadienyl)zirconium dichloride

Base Information

• Chemical Name: Bis(ethylcyclopentadienyl)zirconium dichloride
• CAS No.: 73364-08-6
• Molecular Formula: C₁₄H₁₈Cl₂Zr
• Molecular Weight: 348.427
• Mol file: 73364-08-6.mol

Synonyms:1,3-Cyclopentadiene,1-ethyl-, zirconium complex; Bis(ethylcyclopentadienyl)zirconium dichloride;Bis(p-ethylcyclopentadienyl)dichlorozirconium

Chemical Property of Bis(ethylcyclopentadienyl)zirconium dichloride

Chemical Property:

• PSA: 0.00000
• LogP: 4.98240
• Sensitive.: moisture sensitive

Purity/Quality:

98%Min ^*data from raw suppliers

Bis(ethylcyclopentadienyl)zirconium dichloride, min. 97% ^*data from reagent suppliers

Safty Information:

• Safety Statements: 24/25

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of Bis(ethylcyclopentadienyl)zirconium dichloride

There total 2 articles about Bis(ethylcyclopentadienyl)zirconium dichloride 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: 50.0%

lithium ethylcyclopentadienide + zirconium(IV) chloride (10026-11-6) → bis(ethylcyclopentadienyl)zirconium dichloride (73364-08-6)

Guidance literature:

In tetrahydrofuran; addn. of ZrCl4 at 0°C to freshly prepared C5H4C2H5Li in THF withstirring over 0.5 h, mixture stirred for further 24 h at 20°C; THF removed under vac., residue extd. with boiling toluene and little activated charcoal, filtered, addn. of hexane to filtrate, cooling to -30°C, elem. anal.;

DOI:10.1039/DT9810000805

Reference yield: 46.0%

trifluoromethanesulfonic acid ethyl ester (425-75-2) + lithium cyclopentadienide + zirconium(IV) chloride (10026-11-6) → bis(ethylcyclopentadienyl)zirconium dichloride (73364-08-6)

Guidance literature:

With n-butyllithium; In 1,2-dimethoxyethane; soln of LiCp and EtOtf stirred under N2 at 0°C, then for 1 h at room temp. and recooled to 0°C, treated with n-BuLi in hexane, after 2 h ZrCl4 in glyme was added, stirred overnight; filtered, evapd. to dryness under vac., recrystd. from hot hexane; elem. anal.;

Reference yield: 58.0%

bis(ethylcyclopentadienyl)zirconium dichloride (73364-08-6) + benzylmagnesium chloride (6921-34-2) → Zr(CH3CH2C5H4)2(CH2C6H5)2

Guidance literature:

In diethyl ether; byproducts: MgCl2; to a suspn. of zirconocene dichloride in diethyl ether a soln. of benzylmagnesium chloride is added, mixt. is stirred for 12 h (Ar); solvent is distd. off, residue is taken up with n-pentane, soln. is filtered and the volume is reduced, cooled to -20°C, elem. anal.;

upstream raw materials:

trifluoromethanesulfonic acid ethyl ester

zirconium(IV) chloride

Refernces

• 1、 Lappert, Michael F.,Pickett, Christopher J.,Riely, Paul I.,Yarrow, Paul I. W.. "METALLOCENE DERIVATIVES OF EARLY TRANSITION METALS. PART 2. SUBSTITUTED CYCLOPENTADIENYL GROUP 4A DICHLORO-METALLOCENE COMPLEXES (M=Zr OR Hf; R=Me, Et, Pri, But, OR SiMe3), THEIR MONO- AND DI-ALKYL DERIVATIVES (X=Cl OR R';R'= CH2SiMe3 OR CH2CME3...". . p. 805 - 813. Retrieved 2007/10/02.