A new synthetic pathway for the preparation of ω-functionalized 2-iodophenyl esters as starting materials for the synthesis of substituted phosphanes is described. A radiolabeling of these esters with fluorine-18 has led to building blocks which were reacted with HPPh2 in a Pd-catalyzed P-C cross coupling to establish new phosphanes. These compounds can be applied as mild and bioorthogonal radiolabeling agents by means of the traceless Staudinger ligation. A route to access this class of compounds has been established.
描述了一种新的合成途径,用于制备ω-官能化的2-
碘苯酯,作为合成取代膦烷的起始物。将这些酯与
氟-18进行放射标记,得到的构建块与HPPh
2在Pd催化的P-C交叉偶联中反应,建立了新的膦烷。通过无痕Staudinger缩合,这些化合物可以作为温和且
生物正交的放射标记试剂。已建立了访问这类化合物的途径。