The general answer to this problem is to avoid alkyl halides.
解决这一问题的一般办法是避免使用烷基卤.
Alkyl halides are reacted with sodium nitrite.
卤化烷与亚硝酸钠反应.
These derivatives are readily obtained by alkylation of 2-mercaptopyridine and alkyl halides under alkaline conditions.
这些衍生物可以容易地在碱性条件下通过 2- 巯基吡啶和卤代烷的烷基化而得到.
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