作者:Margareta Björkman、Bengt Långström
DOI:10.1039/b003960h
日期:——
[β-11C]Styrene and [1-11C]pent-1-ene were synthesized from benzaldehyde and butyraldehyde respectively, using [11C]methylenetri-o-tolylphosphorane in a Wittig reaction. The radiochemical yield based on analytical liquid chromatography was 85–90%. The 11C-labelled olefins were further coupled with several aromatic halides in a palladium mediated cross-coupling reaction forming the compounds (E)-[β-11C]stilbene
一种用于掺入方法11 C(β +,吨在内部½= 20.3分钟)烯烃已经被开发出来。[β- 11 C]苯乙烯和[1- 11 C]戊-1-烯,从合成苯甲醛 和 丁醛在Wittig反应中分别使用[ 11 C]亚甲基三邻甲苯基磷烷。基于分析的放射化学收率液相色谱是85–90%。的11 C标记的烯烃 进一步加上几种芳香剂 卤化物 在一个 钯 中介交叉偶联反应形成化合物(ë) - [β- 11 C]茋,(ê)-4'-氨基[β- 11 C]茋,(ë) - [β- 11 C]芪-2'-甲醇,(Ë)-3'-乙氧羰基[β- 11 C]茋,(ê)-4'-甲基[β- 11 C]茋,(ë)-1-苯基[1- 11 C]戊-1-烯和(E)-1-(4-氨基苯基)[ 1-1 11 C]戊-1-烯。反应顺序不需进行纯化中间体11 C标记的烯烃。根据分析,偶联产物的放射化学产率为47-55%。液相色谱。的衰变校正分离放射化学产率(ë)