SYNOPEN, vol.7, no.1, pp.1-7, 2023 (ESCI)
Homoconjugated push-pull chromophores were obtained by an efficient, click-type formal [2+2] cycloaddition. With these short synthetic transformations, complex chromophore structures were achieved in a single step without any by-product formation. Significant second-order optical nonlinearities have been calculated for the synthesized compounds.