Journal
ORGANIC LETTERS
Volume 7, Issue 8, Pages 1545-1548Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol050196d
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[GRAPHICS] New functionalized mono- and bis-benzo[b]furan derivatives were synthesized and developed as blue-light emitting materials. They possessed a CN, CHO, CH = CHPh, CH = CPh2, or CH = CHCOOH group at the C4-position. Two benzo[b]furan nuclei in bis-benzo[b]furan derivatives were connected by a divinylbenzene bridge. With good volatility and thermal stability, bis-benzo[b]furan 7a was fabricated as a device. It emitted blue light with brightness 53430 cd/m(2) (at 15.5 V) and high maximum external quantum efficiency 3.75% (at 11 V).
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