Abstract
This paper revisits some aspects of carbon-11 radiochemistry from the production of the primary labeling reagents and fast chemical transformations used to convert them into more useful building blocks such as [11C]methyl iodide and [11C]carbon monoxide. The application facet covers traditional methylation, carboxylation and other reactions in the preparation of PET tracers. Technical aspects and strategies in handling labeling syntheses are also included. Distinct attention is then given to methods for the 11C-labelling of carbamide and carbamate functional groups at the carbonyl position, considering the wide choice of protocols and starting materials that have become available for this purpose. Concluding sections provide an overview of contemporary practices for the purification of labeled compounds and preventing their radiolytic decomposition.
Keywords: Carbon-11, Radiochemistry, Positron Emission Tomography, PET, Review.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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