Hydrophosphonylation of activated alkenes and alkynes via fluoride ion activation in ionic liquid medium
作者:E. Balaraman、Venu Srinivas、K.C. Kumara Swamy
DOI:10.1016/j.tet.2009.06.096
日期:2009.9
hydro/hydrothiophosphonylation of Baylis–Hillman adducts, substituted allyl bromides, allenylphosphonates and alkynes, promoted by fluoride ion in ionic liquid, is described. Clear-cut evidence for fluoride activation of the phosphite via pentacoordinate phosphorus is provided for the first time. Also, in a comparative reaction, the product obtained was different from that from the palladium catalyzed
描述了由离子液体中的氟离子促进的一种简单的无过渡金属的Baylis-Hillman加合物,取代的烯丙基溴,烯丙基膦酸酯和炔烃的加氢/加氢硫代膦酰基化反应。首次提供了通过五配位磷活化亚磷酸盐的氟化物的明确证据。另外,在比较反应中,得到的产物不同于钯催化的产物。关键产品的结构已通过X射线晶体学证明。