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Updated: Aug 7, 2026

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
Unexpected one-pot method to synthesize spiro[fluorene-9,9'-xanthene] building blocks for blue-light-emitting
Ling-Hai Xie1, Feng Liu, Chao Tang
1Institute of Advanced Materials (IAM), Fudan University, Shanghai, People's Republic of China.
Abstract:
[reaction: see text] An unexpected one-pot synthetic approach toward spiro[fluorene-9,9'-xanthene] (SFX) under excessive MeSO(3)H conditions has been developed. The key step involves a thermodynamically controlled cyclization reaction. Blue-light-emitting materials based on SFX building blocks that exhibit high thermal stability have also been synthesized.
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