【摘 要】
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As one of the members in the helicene family, thiophene-based helicenes have shown their unique physicochemical properties applied in the fields of chiral catal
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As one of the members in the helicene family, thiophene-based helicenes have shown their unique physicochemical properties applied in the fields of chiral catalysis, self-assembly and chiroptical devices.In our work, with dithieno[2,3-b∶3,2-d]thiophene as building block, the thiophene-based double helicenes (1) has been synthesized via irradiation recently (Figure 1).[1] Both racemate and mesomer were obtained with a ratio of 1∶1.
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