Synthesis of t-butylated diphenylanthracene derivatives as blue host materials for OLED applications

Tetrahedron Letters

Volumn 44, Issue 30, 2003, Pages 5747-5750

  Balaganesan, Banumathy ^a   Shen, Wen Jian ^a   Chen, Chin H ^a  

^a NATIONAL CHIAO TUNG UNIVERSITY   (Taiwan)

Author keywords

Blue; Diphenylanthracene; Electroluminescence; OLED; Photoluminescence; Synthesis

Indexed keywords

ANTHRACENE DERIVATIVE; BENZENE DERIVATIVE; FUNCTIONAL GROUP;

ARTICLE; COST EFFECTIVENESS ANALYSIS; EVAPORATION; LIGHT EMITTING DIODE; PHOTOCHEMICAL QUENCHING; PHOTOLUMINESCENCE; SUBSTITUTION REACTION; SYNTHESIS; TEMPERATURE;

EID: 0038166559     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(03)01300-5     Document Type: Article

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10. Preparation of tributyl borate: Boric acid (309 g, 5 mol) was refluxed with n-butanol (1.5 L, 16.2 mol) in a three necked round-bottomed flask fitted with a Dean-Stark apparatus. After removal of 270 mL of water, excess n-butanol was distilled off at atmospheric pressure. The distillate at 230°C was collected as tributyl borate (1.3 L, 96%), purged with nitrogen and stored at room temperature for months.
11. 4 and evaporated to dryness to yield 16 g of 9,10-di-(4-t-butylphenyl)anthracene ( 4c, 90%). Further washing with cold ethanol furnished 4c with 98% purity.
12. 42 (498.75): C, 91.51; H, 8.49. Found: C, 91.29; H, 8.48.
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