| abstract |
A method for synthesizing [ 11 C] methyl halide, which is suitable for repeated production using LiAlH 4 , is easy to prepare, can expect high specific activity, and can maintain a high yield, and their An automatic synthesizer suitable for synthesis is provided. A After the LiAlH 4 dissolved in an organic solvent is introduced into the capillary, to purge the bulk of LiAlH 4 solvent solution with an inert gas, a thin film of LiAlH 4 remaining is formed on the tubular inner surface, then 11 CO 2 gas is introduced to react with the LiAlH 4 , and hydrohalic acid or hydrogen halide gas is further introduced to produce 11 CH 3 X (X represents a halogen atom) in a narrow tube. [Selection] Figure 1 |