[1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride

Base Information

• Chemical Name: [1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride
• CAS No.: 148423-37-4
• Molecular Formula: C₃₉H₃₈Cl₂Zr
• Molecular Weight: 668.861

Synonyms:[1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride

Chemical Property of [1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride

Chemical Property:

Purity/Quality:

98% ^*data from raw suppliers

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Technology Process of [1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride

There total 3 articles about [1-(η⁵-cyclopentadien-1-yl)-1-(η⁵-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]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: 48.0%

zirconium(IV) chloride (10026-11-6) + 1-(cyclopentadien-1-yl)-1-(2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane → [1-(η5-cyclopentadien-1-yl)-1-(η5-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride (148423-37-4)

Guidance literature:

1-(cyclopentadien-1-yl)-1-(2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane; With n-butyllithium; In diethyl ether; hexane; for 24h; Inert atmosphere; Cooling with ice;

zirconium(IV) chloride; In diethyl ether; hexane; pentane; for 90h; Cooling with ice; Inert atmosphere;

Reference yield: 29.5%

2Li(1+)*C5H4C(C6H5)2C5C8H6(C4H9)2(2-)=Li2C5H4C(C6H5)2C5C8H6(C4H9)2 + zirconium(IV) chloride (10026-11-6) → [1-(η5-cyclopentadien-1-yl)-1-(η5-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride (148423-37-4)

Guidance literature:

In petroleum ether; HfCl4 was added to Li-compound, petroleum ether was condensed at -78°C, cold bath are removed, allowed to warm slowly, 23 h (Ar or N2); solvent was removed, extd. in a cellulose extn. thimble with CH2Cl2 overnight, filtered, reduced in vol., ppt. was dried in vac.; elem. anal.;

DOI:10.1021/om030333f

Reference yield:

zirconium(IV) chloride (10026-11-6) + 2,7‐di‐tert‐butyl‐9‐(cyclopentadienyldiphenylmethyl)‐9H‐fluorene (162024-88-6) → [1-(η5-cyclopentadien-1-yl)-1-(η5-2,7-di-tert-butylfluoren-9-yl)-1,1-diphenylmethane]zirconium dichloride (148423-37-4)

Guidance literature:

With n-butyllithium; In diethyl ether; hexane; byproducts: LiCl; stirring ligand (in ether) with 2 equiv. BuLi (in hexane) for 8 h at room temp., addn. of 1 equiv. HfCl4, stirring for 3-4 h; depending on soly. of product (not specified): filtration off of LiCl orevapn. and extn. into CH2Cl2 or filtration (Na2SO4) and dissoln. in CH2 Cl2 or PhMe; recrystn. (ether, -25°C or CH2Cl2, -78°C);

DOI:10.1016/0022-328X(95)06045-X

upstream raw materials:

zirconium(IV) chloride

2,7‐di‐tert‐butyl‐9‐(cyclopentadienyldiphenylmethyl)‐9H‐fluorene

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