One pot synthesis of η3-butadienyl complexes of Mo(II) or W(II): Crystal structure of [MoCl(CO)2(η3-CH2C(CONHCH2Ctriple bondCH)Cdouble bondCH2)(2,2′-bipyridine)]

Hodson, Annabelle; Coles, Simon; Hursthouse, Michael

Abstract

A one pot reaction of [M(CO)4L2] (M = Mo, L2 = 2,2′-bipyridine, 1,10-phenanthroline; M = W, L2 = 2,9-dimethyl-1,10-phenanthroline) with 1,4-dichloro-2-butyne and Ph4PCl was examined in chlorinated solvents over the range 40–129 °C. Production of either [MCl(CO)2(η3-CH2C(COCl)Cdouble bondCH2)L2] (4) or [MCl2(CO)(η2-ClCH2Ctriple bondCCH2Cl)L2] was found to be dependent upon the solvent temperature, and these reactions were found to be insensitive to the presence of water. Under controlled conditions, one pot reactions carried out in the presence of alcohols, amines or thiols gave related ester, amide or thioester substituted η3-butadienyl complexes in good yield. The structure of the propargyl amide complex was confirmed by X-ray analysis.

• Journal Article Type: Article
• Acceptance Date: Oct 25, 2006
• Online Publication Date: Nov 10, 2006
• Publication Date: Apr 11, 2007
• Deposit Date: Mar 13, 2025
• Print ISSN: 0277-5387
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 26
• Issue: 6
• Pages: 1285-1291
• DOI: https://doi.org/10.1016/j.poly.2006.10.040
• Public URL: https://uwe-repository.worktribe.com/output/13936842