Pd(0)-Mediated <sup>11</sup>C-Carbonylation of Aryl(mesityl)iodonium Salts as a Route to [<sup>11</sup>C]Arylcarboxylic Acids and Derivatives
作者:Stefano Altomonte、Sanjay Telu、Shuiyu Lu、Victor W. Pike
DOI:10.1021/acs.joc.7b01704
日期:2017.11.17
Pd(0)-mediated 11C-carbonylation of aryl(mesityl)iodonium salts followed by suitable quench provides a rapid room-temperature two-pot procedure for labeling arylcarboxylic acids and amide derivatives with the short-lived positron emitter carbon-11 (t1/2 = 20.4 min) in generally good to high yields (up to 71%). High product ring selectivity (≥13) was achieved when using mesityl as a spectator group
Pd(0)介导的芳基(间苯二甲氧基)碘鎓盐的11 C-羰基化反应,再加上适当的淬灭反应,提供了一种快速的室温两锅法,用短寿命的正电子发射体碳11(t 1/2 = 20.4分钟),通常高至高产量(最高71%)。当在异芳基碘鎓盐前体中使用异戊二烯作为旁观者基团时,可以实现较高的产物环选择性(≥13)。这个过程有潜力为用正电子发射断层摄影术进行分子成像准备新的放射性示踪剂。