Copper‐Catalyzed Cascade Cyclization of 2‐Propynolphenols: Access to 4‐Phosphorylated 2H‐Chromenes

A novel copper‐catalyzed cascade cyclization of easily prepared 2‐propynolphenols with disubstituted phosphine oxides has been developed to give 4‐phosphorylated 2H‐chromenes in moderate to excellent yields. This cascade process involves multiple bond‐forming events including C–O and C–P bonds. More...

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Veröffentlicht in:	Advanced synthesis & catalysis 2017-11, Vol.359 (22), p.3962-3967
Hauptverfasser:	Li, Ren, Chen, Xi, Song, Xian‐Rong, Ding, Haixin, Wang, Pengyang, Xiao, Qiang, Liang, Yong‐Min
Format:	Artikel
Sprache:	eng
Schlagworte:	4-phosphorylated 2H-chromenes Alcohols cascade cyclization Copper copper-catalyzed reaction disubstituted phosphine oxides [HP(=O)R1R2] Functional groups propargylic alcohols
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