Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Reexamination Certificate
2011-08-09
2011-08-09
Balasubramanian, Venkataraman (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
C313S504000
Reexamination Certificate
active
07994316
ABSTRACT:
Since the conventional electron transporters have low thermal stability, the organic electroluminescent devices using them are not sufficient in terms of the compatibility of their luminance and luminous efficiency with device lifetime.A 1,3,5-triazine derivative of formula (1) is obtained by a metal catalyst-aided coupling reaction of a compound of formula (2) with a compound of formula (3), and this is used as a composing component of an organic electroluminescent device.[In the formulae, Ar1and Ar2represent phenyl group or the like, R1and R2represent hydrogen atom or the like, R3represents methyl or the like, m is an integer of 0 to 2, X represents 2,4-pyridylene or the like, p is 1 or 2, a and b are 1 or 2, a+b is 3, q is 0 or an integer of p or less, M represents —MgR4group or the like, R4represents chlorine atom or the like, r is p-q, and Y represents a leaving group.]
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Aihara Hidenori
Sato Masaru
Tanaka Tsuyoshi
Yamakawa Tetsu
Yanai Naoko
Balasubramanian Venkataraman
Greenblum & Bernstein P.L.C.
Sagami Chemical Research Center
Tosoh Corporation
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