malononitriles has been developed. In this method, sodium borohydride in isopropanol has a catalytic effect on the initial condensation between malononitrile and aldehydes or ketones at 0 °C. The sodium borohydride also simultaneously acts as a reagent and reduces the unsaturated intermediate formed in situ by the condensation. This simple reductive alkylation method effectively consumes all malononitrile
开发了一种高效、简便的单取代
丙二腈的合成方法。在该方法中,
异丙醇中的
硼氢化钠对
丙二腈与醛或酮在0℃下的初始缩合具有催化作用。
硼氢化钠还同时充当试剂并还原通过缩合原位形成的不饱和中间体。这种简单的还原烷基化方法有效地消耗了所有
丙二腈并选择性地仅生产单取代的
丙二腈。通过这些单取代衍
生物的烷基化制备不对称二取代
丙二腈。