Novel, Blue-Transparent Frequency Doublers Based on 1,8-Di(hetero)arylnaphthalenes


  • This work forms part of the doctoral thesis of A. B. It was financially supported by the Volkswagen-Stiftung and the Fonds der Chemischen Industrie.

  • Dedicated to Professor Wolfgang Lüttke on the occasion of his 75th birthday


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Consecutive Suzuki coupling provides a general method for preparing 1,8-diarylnaphthalenes such as 2 (A = acceptor, D = donor) from the boronic acid 1. Noncovalent π–π interactions render them markedly more NLO-active than the 1,5-isomers (which absorb at longer wavelength) and thus fascinating alternatives to the best, classical, blue-transparent frequency doublers.