Synthesis of symmetrical triarylphosphines from aryl fluorides and red phosphorus: scope and limitations
作者:Terence L Schull、Susan L Brandow、Walter J Dressick
DOI:10.1016/s0040-4039(01)01059-0
日期:2001.8
The reaction of aryl fluorides with phosphide anion, generated in situ from the reduction of red phosphorus by lithium metal in liquid ammonia, gave symmetrical triarylphosphines in fair to good yields. Phosphonodiamide, sulfonamide, 2-oxazolyl, and nitrile groups were stable to the reaction conditions, while nitro and bromo substituents were not. para-Substituted aryl fluorides gave higher yields
液态氟化锂中的锂金属还原红磷后,原位生成的芳基氟化物与磷阴离子发生反应,得到对称的三芳基膦,收率相当好。膦二酰胺,磺酰胺,2-恶唑基和腈基对反应条件稳定,而硝基和溴取代基则不稳定。对位取代的芳基氟化物比间位取代的芳基氟化物具有更高的产率,并且邻位取代的芳基氟化物未能反应。