191978-49-1

Basic information

• Product Name: tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I)
• Synonyms: tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I)
• CAS NO: 191978-49-1
• Molecular Weight: 984.141
• Mol File: 191978-49-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I)(CAS DataBase Reference)
• NIST Chemistry Reference: tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I)(191978-49-1)
• EPA Substance Registry System: tetrakis(4-iodophenyl)cyclobutadienecyclopentadienylcobalt(I)(191978-49-1)

Safety Data

• Hazardous Substances Data: 191978-49-1(Hazardous Substances Data)

Upstream product

• 67973-34-6 1,2-bis(4-iodophenyl)acetylene 
• 12078-25-0 dicarbonylcyclopentadienylcobalt 

Relevant articles and documents

An improved protocol for the synthesis of [(ν4-C 4R4)Co(ν5-C5H5)] complexes

The reaction of bulky alkynes C2R2 with (ν5-C5H5)Co(CO)(dimethyl fumarate) under microwave irradiation provides complexes of the type [(ν4-C 4R4)Co(ν5-C5H5)] in good to excellent yields. This protocol represents a significant improvement over those reported previously. In particular, the formation of insertion products such as cyclopentadienones or cyclohexadienes can be avoided. In addition, because of the exceptional stability of (ν5-C 5H5)Co(CO)(dimethyl fumarate), the reactions can be carried out in crude solvents. The easy access to [(ν4-C 4R4)Co(ν5-C5H5)] complexes stimulated a study of their reactivity, notably under cross-coupling conditions.