1-己基-2-(全氟烷基)-1-碘乙烯,C n F 2 n +1 CH = CIC 6 H 13(FnH6IE)具有高生物相容性和X射线对比能力,已被研究作为全氟辛基溴化物(perflubron,PFOB)/蛋黄卵磷脂(EYP)乳液(90:4 w / v%)(基于碳氟化合物)的添加剂和稳定剂。目前最适合诊断用途的制剂。这些碘化碳氟化合物/碳氢化合物混合化合物在PFOB乳剂中用作各种添加剂(用FnH6IE替代3–30 w / v%PFOB)时,增强了乳剂的不透射线作用,并保持了稳定。此外,在所测试的PFOB / FnH6IE / EYP乳剂中,70:20:4(w / v%)的配方可产生细腻且稳定的乳剂,其X射线造影剂在体外的不透射线强度是PFOB / EYP的两倍。 (90:4 w / v%)乳液。当与EYP以1:1的摩尔比引入FnH6IE作为稳定剂时,
New Efficient Palladium-Catalyzed Perfluoroalkylation of Carbon-Carbon Multiple Bonds with<i>F</i>-Alkyl Iodides. An Expedient Route to<i>F</i>-Alkylated Alkyl and Alkenyl Iodides
A variety of alkenes and alkynes efficiently undergo the perfluoroalkylation with F-alkyl iodides in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium(0) in hexane to give good yields of the corresponding F-alkylated alkyl and alkenyl iodides, respectively.