Of C-Se bond

The selenium atoms produced by the CSe2 photolysis were moderated with nitrogen gas. The rates of the reactions were generally determined by measuring the rate of formation of C—Se bonds, which gave new absorption bands in the ultraviolet. The compounds studied show the approximate reactivities one would expect if the reaction of selenium... 

The organocatalyzed conjugate addition of sulfur nucleophiles to electron-poor alkenes is probably the most frequently used process for the asymmetric formation of C—S bond [2b, 5]. Analogously, the employment of selenium nucleophiles may, in principle, be used for the formation of C—Se bonds. Because previous reviews were already reported on this topic, more recent reports are especially highlighted in this chapter. 

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