(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

Base Information

Chemical Name:(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)
CAS No.:199849-99-5
Molecular Formula:C₃₅H₂₅Co
Molecular Weight:504.577
Hs Code.:

Synonyms:(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

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Chemical Property of (η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

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Technology Process of (η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

There total 3 articles about (η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(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: 63.0%

: 199850-04-9,199850-02-7
(η4-tetraphenylcyclobutadiene)(η5-chloroethenylcyclopentadienyl)cobalt

: 199849-99-5
(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

Guidance literature:: With n-butyllithium; In tetrahydrofuran; hexane; (Ar); 1.38 M soln. of n-BuLi in hexahe was added to soln. of cobalt complex in THF at -30/-40°C, afred 15 min reaction mixture was cooledto -84°C, H2SO4 (from 4:1 H2O/conc. H2SO4) was added, warmed to room temp.; evapd., partitioned between Et2O and brine, organic layer separated, dried over MgSO4, evapd., column chromy. (silica gel, CH2Cl2/petroleum ether);
DOI:10.1016/j.jorganchem.2008.09.004

Reference yield: 59.0%

: (η(5)-(E)-chloroethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

: 199849-99-5
(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

Guidance literature:: With C₆H₅Li; In tetrahydrofuran; byproducts: LiCl; under Ar, excess of PhLi was added to Co-complex in THF, mixt. was stirred for 20 h and hydrolyzed with brine; aq. layer was extd. 4 times with Et2O, org. layer was dried with MgSO4, solvent was removed, chromy. (alumina, neutral III, light petroleum ether);
DOI:10.1002/1099-0682(200208)2002:8<2040::AID-EJIC2040>3.0.CO;2-W

Reference yield: 46.0%

: 12427-78-0
(η4-tetraphenylcyclobutadiene)(η5-cyclopentadienylcarboxaldehyde)cobalt

: 5293-84-5
chloromethyltriphenylphosphonium chloride

: 199849-99-5
(η(5)-ethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

: (η(5)-(E)-chloroethenylcyclopentadienyl)(η(4)-tetraphenylcyclobutadienyl)cobalt(I)

Guidance literature:: With C(CH₃)3OK; In tetrahydrofuran; under Ar, Co-complex in THF was added to mixt. of excess of C(CH3)3OK and phosphonium salt in THF at -70 °C, mixt. was stirred for 30 minboth at -65 and 25 °C, excess of C(CH3)3OK was added, mixt. was refluxed for 17 h; cooling, H2O was added, aq. layer was washed 4 times with Et2O, org. layer was dried with MgSO4, solvent was removed, chromy. (alumina, light petroleum ether, light petroleum ether/Et2O (10:1));
DOI:10.1002/1099-0682(200208)2002:8<2040::AID-EJIC2040>3.0.CO;2-W