1092707-34-0

Basic information

• Product Name: (η5-cyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetra(para-trifluorophenyl)cobaltacyclopentadiene
• Synonyms: (η5-cyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetra(para-trifluorophenyl)cobaltacyclopentadiene
• CAS NO: 1092707-34-0
• Molecular Weight: 814.807
• Mol File: 1092707-34-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (η5-cyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetra(para-trifluorophenyl)cobaltacyclopentadiene(CAS DataBase Reference)
• NIST Chemistry Reference: (η5-cyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetra(para-trifluorophenyl)cobaltacyclopentadiene(1092707-34-0)
• EPA Substance Registry System: (η5-cyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetra(para-trifluorophenyl)cobaltacyclopentadiene(1092707-34-0)

Safety Data

• Hazardous Substances Data: 1092707-34-0(Hazardous Substances Data)

Upstream product

• 26305-75-9 chlorotris(triphenylphosphine)cobalt(I) 
• 5216-31-9 1,2-bis(4-fluorophenyl)acetylene 

Relevant articles and documents

Synthesis and 1H NMR spectroscopic properties of substituted (η4-tetraarylcyclobutadiene)(η5-cyclopentadienyl)cobalt metallocenes

The reaction of diarylacetylenes with CoCl(PPh3)3 and sodium cyclopentadienylide or sodium carbomethoxycyclopentadienylide gave (η4-tetra-arylcyclobutadiene)(η5-cyclopentadienyl)cobalt and (η4-tetra-arylcyclobutadiene)(η5-carbomethoxycyclopentadienyl)cobalt, respectively, where aryl = para-XC6H4 (X = CF3, F, MeO). The reaction was unsuccessful for the synthesis of (η4-tetra(para-methoxyphenyl)cyclobutadiene)(η5-cyclopentadienyl)cobalt, which was synthesised instead from dicarbonyl(η5-cyclopentadienyl)cobalt. In all of the examples starting with CoCl(PPh3)3 an intermediate (η5-cyclopentadienyl)- or (η5-carbomethoxycyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetraarylcobaltacyclopentadiene complex was isolated, and two examples were characterised by X-ray crystallography. Heating the (η5-cyclopentadienyl)- or (η5-carbomethoxycyclopentadienyl)(triphenylphosphine)-2,3,4,5-tetraarylcobaltacyclopentadiene complexes resulted in clean conversion to the corresponding metallocenes. The influence of the para-aryl substituents on the 1H NMR of the cyclopentadienyl moiety is tabulated, together with the influence of a range of R substituents in (η4-tetraphenylcyclobutadiene)(η5-RC5H4)cobalt (R = CO2Me, CH2OH, Me, CHO, CCH, CO2H, CN, CONHR1, 2-oxazolinyl, NH2, NHAc, HgCl, Br, I, SiMe3, SnMe3, Ph).