硒氰酸酯是一類含有硒氰基(–SeCN)的有機化合物,其通式為RSeCN。它們通常是無色、對空氣穩定的固體液體,有難聞氣味。它和硫氰酸酯的結構、合成及反應相似。

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硒氰酸酯的通式,藍色部分為硒氰基

製備

硒氰酸酯可由鹵代烴和硒氰酸鉀反應製得:[1]

RX + KSeCN → RSeCN + KX(X=Cl, Br, I)

α,ω-二鹵代烴的反應類似。 鹵代芳烴也可以重氮鹽為原料和硒氰酸鉀(或硒氰二硒氰酸硒等)反應來製備芳基硒氰酸酯:[2]

ArN2Cl + KSeCN → ArSeCN + KCl + N2

參考文獻

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