Synthesis and characterization of 3-vinyl[33](1,2,4)ferrocenophane

Treatment of [33](1,2,4)ferrocenophane (1) with N-methylformanilide and phosphorus oxychloride gave 3-formyl[33](1,2,4)ferrocenophane (2) in 96% yield. Subsequently, (2) was reacted with an ylid in THF and 3-vinyl[33](1,2,4)ferrocenophane (3) was obtained in 88% yield.

Graphical abstractAn efficient synthesis of 3-vinyl[33](1,2,4)ferrocenophane from [33](1,2,4)ferrocenophane is reported.Figure optionsDownload full-size imageDownload as PowerPoint slide