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  • Author or Editor: N. Huan x
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Abstract  

The dissociation energy of C–At bond /DC–At/ in a number of astatobenzene derivatives has been determined by pyrolytic method. The values of DC–At for the astatoaromatic compounds investigated have been found to be independent of the substituents and their relative position in the astatoaromatic system.

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Abstract  

Electrophilic aromatic astatination of equimolar mixtures of benzene and its derivatives has been studied in acid homogeneous medium. It has been quantitatively estimated, on the basis of the Hammett equation, how the properties of substitutients influence the yield of reaction products.

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Abstract  

Carrier-free astatotyrosine has been synthesized using an electrophilic reaction in acidic media. Temperature of 150–160°C and reaction time of 20–30 min were chosen as optimal conditions for the synthesis of astatotyrosine. Under the selected conditions the yield was about 90%.

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