PET Synthesis Applications

Coherent Synthesis technology reduces reaction times for radio labelling reactions requiring high temperatures. Consequently, the efficiency of these reactions is drastically improved. The following table shows yields and reaction times using thermal heating, ordinary microwaves and Coherent Synthesis

Aromatic radiofluorinations

     Thermal Heating  Ordinary Microwave  Coherent Synthesis

 X

 R

 Y(%)  T(oC)  Time (min)  Y(%)  Time (min)  Y(%)  Time (min)
 NO2  2-CHO  78  120  10  65  2  76  0.25
 NO2  4-CHO  70  85-110  20  65  2  75  0.5
 NO2  4-CN  40-70  150  10  68  3  65  0.5
 NO2  2-CN  65  150  15      74  0.5
 Br  4-CHO  3  85-110  20      7-13  0.5-1.5

X=Leaving Group, R=Activating Group, Ref: Stone-Elander, S.A. & Elander, N.
Appl. Radiat. Isot. Vol 44, No.5, pp889-893 (1993)

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