A study of Co-2(alkyne)(binap)(CO)(4) complexes (BINAP = (1,1 '-binaphthalene)-2,2 '-diylbis(diphenylphosphine))

Gibson, S.E.; Kaufmann, K.A.C.; Loch, J.A.; Steed, J.W.; White, A.J.P.

Abstract

Understanding the interaction of chiral ligands, alkynes, and alkenes with cobaltcarbonyl sources is critical to learning more about the mechanism of the catalytic, asymmetric Pauson-Khand reaction. We have successfully characterized complexes of the type [Co-2(alkyne)(binap)(CO)(4)] (BINAP = (1,1'-binaphthalene)-2,2'diylbis(diphenylphosphine)) and shown that diastereomer interconversion occurs under Pauson-Khand reaction conditions when alkyne =HC equivalent to CCO2Me. Attempts to isolate [Co-2(alkyne)(binap)(CO)(x)] complexes with coordinated alkenes led to the formation of cob altacyclopentadiene species.

Citation

Gibson, S., Kaufmann, K., Loch, J., Steed, J., & White, A. (2005). A study of Co-2(alkyne)(binap)(CO)(4) complexes (BINAP = (1,1 '-binaphthalene)-2,2 '-diylbis(diphenylphosphine)). Chemistry - A European Journal, 11(8), 2566-2576

• Journal Article Type: Article
• Publication Date: 2005-04
• Journal: Chemistry - A European Journal
• Print ISSN: 0947-6539
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 8
• Pages: 2566-2576