An efficient synthesis of novel spiro[[8H]indeno[2,1-b]-thiophene-8,9′-fluorene] building block for blue light-emitting materials

Ling Hai Xie, Ting Fu, Xiao Ya Hou, Chao Tang, Yu Ran Hua, Rui Jie Wang, Qu Li Fan, Bo Peng, Wei Wei, Wei Huang

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

We have developed efficient synthetic routes to obtain a novel building block spiro[[8H]indeno[2,1-b]thiophene-8,9′-fluorene] (SITF), a monothiophene-containing spirobifluorene analogue, and constructed blue light-emitting materials, including 2′,7′-bis([1,1′-biphenyl]-4-yl)-spiro[indeno[2,1-b]thiophene-8,9′-fluorene] (BBP-SITF) and 2′,7′-bis(9,9′-spirobifluoren-2-yl)spiro[[8H]indeno[2,1-b]-thiophene-8,9′-fluorene] (BSBF-SITF). BSBF-SITF has shown to be a stable blue light-emitting material with high PL quantum efficiency (89%) and unique regioselective feature at the C2 of thiophene, which indicate that BSBF-SITF will be useful for constructing complicated optoelectronic systems.

Original languageEnglish
Pages (from-to)6421-6424
Number of pages4
JournalTetrahedron Letters
Volume47
Issue number36
DOIs
StatePublished - 4 Sep 2006
Externally publishedYes

Keywords

  • BF·EtO
  • Blue light-emitting materials
  • Spiro compounds
  • Spiroindenothiophenefluorene

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