Tweleve disubstituted diphenylthiourea compounds were designed and synthesized.Their powder SHG tests shown that three of them have effect of SHG.The strongest is six times of KDP.

• 本文设计合成了十二种二取代二苯硫脲类化合物，粉末测试表明其中三种化合物具有倍频效应，最大者为KDP的6倍。