Abstract: A variety of substituted selenoaldehydes has been prepared via fluoride desilylation of a-silyl selenocyanates or base-induced elimination of HCN from simple selenocyanates containing electron-accepting or conjugating substituents. Cycloaddition reactions of electron-deficient or conjugated selenoaldehydes with electrically biased dienes proceed efficiently giving substituted selenapyrans. Selenal cycloadditions exhibit ...
![1-[dimethyl(phenyl)silyl]butyl selenocyanate结构式](https://image.chemsrc.com/caspic/404/100604-91-9.png)
