A highly efficient strategy was developed for the straightforward synthesis of tetraaryl-substituted pyrazoles. The cascade process consists of a regioselective 1,3-dipolar cycloaddition of benzosultam-3-ylidenes with nitrile imines and a subsequent elimination of SO₂. The title compounds exhibit high fluorescence quantum yields and Aggregation Induced Emission (AIE) characteristics.

中文翻译：

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级联1，3-偶极环加成/ SO ₂挤出方法快速合成具有聚集诱导发射特性的四芳基取代吡唑

为了直接合成四芳基取代的吡唑，开发了一种高效的策略。级联过程包括苯并苏三-3-亚胺与腈亚胺的区域选择性1，3-偶极环加成反应，然后消除SO ₂。标题化合物具有高荧光量子产率和聚集诱导发射（AIE）特征。