Cobalt,(1,2,3,4,5-eta)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete]

Base Information

• Chemical Name: Cobalt,(1,2,3,4,5-eta)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete]
• CAS No.: 105267-82-1
• Molecular Formula: C15H23 Co P2
• Molecular Weight: 324.288
• Mol file: 105267-82-1.mol

Synonyms:105267-82-1;Cobalt, (1,2,3,4,5-eta)cyclopentadienyl-(2,4-bis-(1,1-dimethylethyl)-1 ,3-diphosphete);Cobalt,(1,2,3,4,5-.eta.)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete];Cobalt, [(1,2,3,4-.eta.)-2,4-bis(1,1-dimethylethyl)-1,3-diphosphete](.eta.5-2,4-cyclopentadien-1-yl)-;Cobalt, (1,2,3,4,5-eta)cyclopentadienyl-(2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete);AVZPOUGNRCNJDI-UHFFFAOYSA-N

Chemical Property of Cobalt,(1,2,3,4,5-eta)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete]

Chemical Property:

• Vapor Pressure: 0.0237mmHg at 25°C
• Boiling Point: 257.2°Cat760mmHg
• Flash Point: 109.4°C
• PSA: 27.18000
• Density: g/cm³
• LogP: 5.74490
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 2
• Exact Mass: 326.076343
• Heavy Atom Count: 18
• Complexity: 237

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(C)(C)[C-]1P[C-](P1)C(C)(C)C.[CH-]1C=CC=C1.[Co]

Technology Process of Cobalt,(1,2,3,4,5-eta)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete]

There total 3 articles about Cobalt,(1,2,3,4,5-eta)cyclopentadienyl-[2,4-bis-(1,1-dimethylethyl)-1,3-diphosphete] 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: 67.0%

η5-cyclopentadienylbis(ethene)cobalt + 2,2-dimethylpropylidynephosphine (78129-68-7) → (η5-cyclopentadienyl)(η4-2,4-di-tert-butyl-1,3-diphosphacyclobutadiene)cobalt (105267-82-1)

Guidance literature:

In diethyl ether; pentane; byproducts: C2H4; Ar atmosphere; dropwise addn. of PCC(CH3)3 (20.0 mmol) in ether/pentaneto a soln. of the Co complex (7.8 mmol) in ether/pentane at -30°C; mixt. was kept at -5°C for 1 h;; evapn.; residue was dissolved in pentane; filtration through Florisil; filtrate was cooled at -78°C for 12 h; removal of solvent; dryingat 1E-3 torr; elem. anal.;;

Reference yield: 50.0%

η5-cyclopentadienylbis(ethene)cobalt + 2,2-dimethylpropylidynephosphine (78129-68-7) → (η5-cyclopentadienyl)(η4-2,4-di-tert-butyl-1,3-diphosphacyclobutadiene)cobalt (105267-82-1) + (η5-cyclopentadienyl)((η5-cyclopentadienyl)ethenecobalt)-μ-(η4-2,4-di-tert-butyl-1,3-diphosphacyclobutadiene)cobalt (109885-86-1)

Guidance literature:

In diethyl ether; pentane; Ar atmosphere, molar ratio complex/PC-t-Bu 1:1; chromy (Al2O3, toluene);

Reference yield: 16.0%

η5-cyclopentadienylbis(ethene)cobalt + 2,2-dimethylpropylidynephosphine (78129-68-7) + Bis(trimethylsilyl)ethyne (14630-40-1) → (η5-cyclopentadienyl)(η4-2,4-di-tert-butyl-1,3-diphosphacyclobutadiene)cobalt (105267-82-1) + η5-cyclopentadienyl-η4-{2-t-butyl-3,4-bis(trimethylsilyl)-1-phosphacyclobutadiene}-cobalt(I) + η5-cyclopentadienyl-η4-tetra(trimethylsilyl)cyclobutadiene-cobalt(I)

Guidance literature:

In toluene; CpCo(C2H4)2 (9.4 mmol) and Me3SiCCSiMe3 (20 mmol) dissolved in toluene and heated to reflux, at this temp. t-BuCP (7 mmol) and Me3SiCCSiMe3 (10 mmol) in toluene added over 5 h, further stirred for 2 h; filtered through Florisil, evapd., chromd. (column, Kieselgel 60, hexane), CpCo((CSiMe3)4) isolated from 1st yellow eluate, next red eluate yielded CpCo(t-BuCP(CSiMe3)2) after evapn., last eluate contained CpCo((t-BuCP)2); elem. anal.;

DOI:10.1016/0022-328X(87)80435-7

upstream raw materials:

2,2-dimethylpropylidynephosphine

Bis(trimethylsilyl)ethyne