DERIVATIVES OF 1,2-BIS (5-PHENYLOXAZOLYL-2)BENZENE AS ORGANIC BLUE LUMINESCENCE LUMINOPHORE Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: product: derivatives of 1,2-bis-(5-phenyloxazolyl-2)benzene of the formula (I) where a) R H, empirical formula is C₂₄H₁₆N₂O₂,, yield is 64% m. p. is 110 C; b) R C₆H₅,, empirical formula is C₃₀H₂₀N₂O₂,, m. p. is 155 C; c) R N(CH₃)₂,, empirical formula is C₂₆H₂₁N₃O₂,, m. p. is 118 C; d) R CH₃,, empirical formula is C₂₅H₁₈N₂O₂,, m. p. is 126 C. Reagent 1: 2-(5-phenyloxazolyl-2)benzoic acid. Reagent 2: SOCl₂ following by treatment of corresponding ω-aminoacetophenone hydrochloride with formed chloroanhydride. Reaction conditions: 2 h at boiling, the following treatment with chloroanhydride is carried out at 20 C. EFFECT: improved method of synthesis. 5 dwg, 2 tbl