Various selenenyl derivatives, RO2C·CH2SeX, underwent elimination with triethylamine to form selenoaldehydes, RO2C·CHSe, which were trapped in situ as cycloadducts with conjugated dienes; the adduct of ethyl selenoxoacetate and anthracene dissociated upon heating thereby allowing transfer of the selenoaldehyde to 2,3-dimethylbuta-1,3-diene.
用
三乙胺消除各种
硒烯衍
生物RO 2 C·CH 2 SeX,形成
硒代醛RO 2 C·CHSe,将其与共轭二烯以环加合物的形式原位捕获。加热时离解亚
硒酸乙酸乙酯和
蒽的加合物,从而使
硒醛转移到2,3-二甲基丁-1,3-二烯上。