Hydrido(3-hydroxyalkynyl) Complexes as Intermediates in the Activation of Propargyl Alcohol Derivatives by [Cp*RuCl(dippe)] [Cp* = C5Me5, dippe = 1,2-bis(diisopropylphosphanyl)ethane]

✍ Scribed by Emilio Bustelo; Manuel Jiménez-Tenorio; M. Carmen Puerta; Pedro Valerga

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 371 KB
• Volume: 2001
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/1099-0682(200109)2001:9<2391::aid-ejic2391>3.0.co;2-z

✦ Synopsis

The reaction of propargyl alcohol derivatives with the complex [Cp*RuCl(dippe)] [dippe = 1,2-bis(diisopropylphosphane)ethane] and NaBPh 4 in MeOH yields hydrido(3-hydroxyalkynyl) compounds [Cp*Ru(H){CϵCC(OH)RRЈ}-(dippe)][BPh 4 ] [R, RЈ = Ph, Ph (1a); H, Ph (1b); H, Me (1c)]. These represent intermediates in the formation of 3-hydroxyvinylidene species [Cp*Ru{=C=CHC(OH)RRЈ}(dippe)][BPh 4 ] [R, RЈ = Ph, Ph (2a); H, Ph (2b); H, Me (2c)], into which they irreversibly rearrange both in solution and in the solid state.