Curran D P, Luo Z, Degenkolb P
Department of Chemistry, University of Pittsburgh, PA 15260, USA.
Bioorg Med Chem Lett. 1998 Sep 8;8(17):2403-8. doi: 10.1016/s0960-894x(98)00435-1.
A new generation of propylene-spaced fluorous allyltin reagents [(Rf(CH2)3)3SnCH2CH = CH2] is described. These succeed in radical allylations where their lower homologs (ethylene-spaced) fail, and they provide improved performance in transition metal catalyzed allylations. The reagents and byproducts are readily separated by simple fluorous-organic liquid-liquid or solid-liquid extractions.
描述了新一代丙烯间隔的氟代烯丙基锡试剂[(Rf(CH2)3)3SnCH2CH = CH2]。这些试剂在其低级同系物(乙烯间隔)失败的自由基烯丙基化反应中取得了成功,并且在过渡金属催化的烯丙基化反应中表现出更好的性能。通过简单的氟代有机液-液或固-液萃取可以很容易地分离出这些试剂和副产物。