alkyl halides

同根派生

英汉例句

• Alkyl halides are reacted with sodium nitrite.
  卤化烷与亚硝酸钠反应。
• 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。
• Preparation of unsymmetrical selenides via the reaction of arylselenol with alkyl halides needs at least equal molar cesium hydroxide as the base.
  通过卤代烃与硒酚反应合成了不对称硒醚,至少要使用等摩尔的氢氧化铯作碱,与氢氧化钾相比,氯化铯价格昂贵。
• Using cesium carbonate as catalyxer and potassium carbonate as base,reacting directly phenol with alkyl halides in refluxing acetonitrile will give alkyl aryl ethers in good yields.
  以碳酸铯作催化剂;碳酸钾作碱;以乙腈作溶剂;在回流的条件下酚与卤代烃反应高产率得到烷基芳醚.
• 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。