The double elimination reaction of β-substituted sulfones offers a versatile strategy for synthesis of arylene ethynylene kits containing heteroaromatic rings. A sequence of aldol reaction between α-sulfonyl carbanion and aldehyde, trapping the resulting aldolate to give β-substituted sulfone, and double elimination of this intermediate can be integrated in one pot. This protocol allows thiophene, pyridine, and ferrocene units to be accommodated in phenylene ethynylene arrays.Key words: aryleneethynylenes, heteroaromatic rings, ferrocene, double elimination, sulfones.
β-取代磺酮的双消除反应提供了一种多功能的合成芳基乙炔基套件的策略,其中包含杂芳环。 α-磺酰基碳负离子与醛之间的醛缩反应序列,捕获所得的醛缩物以给出β-取代磺酮,以及对该中间体的双消除可以集成在一个反应器中。该方案允许噻吩、吡啶和二茂铁单元被容纳在苯基乙炔基阵列中。关键词:芳基-乙炔基,杂芳环,二茂铁,双消除,磺酮。