Keywords: Oxidation / Natural products / Ylides / Iodine / Emodin Hypervalent iodine oxidation of emodin (1) with various (diacetoxyiodo)arenes 2a−f in potassium hydroxide/methanol leading to 3-aryloxy-1,8-dihydroxy-2-iodo-anthraquinones 4a−f is reported. Mechanistic studies showed reaction via iodonium ylides.
The results showed that (+)-[(18)F]FMe-McN5652 is also suitable for in vivo quantification of SERT with PET. Because of the long half-life of (18)F, the widespread use within a satellite concept seems feasible.
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