锍
合成
锍盐可由硫醚与卤代烃反应制备。例如二甲硫醚与碘甲烷碘化三甲基锍:
- CH
3–S–CH
3 + CH
3–I → (CH
3)
3S+
+ I−
此过程是亲核取代反应,二甲硫醚中硫有两对孤对电子,其中一对进攻甲基将碘取代。若使用更强的甲基化试剂,例如三氟甲磺酸甲酯,该反应更加迅速。
参考文献
- March, J. “Advanced Organic Chemistry” 5th Ed. J. Wiley and Sons, 1992: New York. ISBN 0-471-60180-2.
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