Reactions of platinum σ-acetylide complexes with dicobalt octacarbonyl: Conversion of an alkyne unit into cyclopentenone

✍ Scribed by Jack Lewis; Bing Lin; Paul R. Raithby

• Book ID: 104636342
• Publisher: Springer
• Year: 1995
• Tongue: English
• Weight: 482 KB
• Volume: 20
• Category: Article
• ISSN: 0340-4285
• DOI: 10.1007/bf00136422

✦ Synopsis

Treatment of platinum ~-acetylide complexes trans-Pt(PR3)/(C~CC~CR')2 (1) with two equivalents of Co2(CO)8 gave complexes trans-Pt( PR3 3) and ( 4), where R = Et or n-Bu and R' = H or SiMe 3, in high yields. The unsubstituted platinum-alkyne-cobalt complex (i.e. R'= H) reacted with alkenes (norbornylene or cyclopentene) to produce new platinum acetylides containing 2-cyclopentenone groups. All new compounds were characterized by i.r., u.v.-vis. and n.m.r. (1H, alp, laC) spectroscopies.