Pyrazoloazoleazomethine dyes

Details Pyrazoloazoleazomethine dyes Pyrazoloazoleazomethine dyes

1990-02-05

1991-06-25

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548110, 548111, 548159, 548324, 548359, 544333, C07D48704

Patent

active

050268678

ABSTRACT:
A pyrazoloazoleazomethine dye represented by formula (I) ##STR1## wherein, R.sub.1 represents a substituent having a Hammett's substituent constant value of at least 0.6; Za, Zb, and Zc each represents ##STR2## (wherein R.sub.2 represents a hydrogen atom or a substituent), or .dbd.N--; when Zc.dbd.Zb is a carbon-carbon double bond, it may form a part of an aromatic ring; R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom or a substituent; and n represents 1 or 2; said dye may form a dimer or higher polymer by combining with each other or to a polymer through a divalent or higher valent group at R.sub.1, Za, Zb, or Zc.

REFERENCES:
patent: 3061432 (1962-10-01), Menzel et al.
patent: 3725067 (1973-04-01), Bailey et al.
patent: 4500630 (1985-02-01), Sato et al.
patent: 4540654 (1985-09-01), Sato et al.
patent: 4621046 (1986-11-01), Sato et al.
Research Disclosure Jun. 1984, 24230.
Patent Abstracts of Japan, vol. 10, No. 36 (C-328) [2093], Feb. 13, 1986; & JP-A-60 186 567 (Fuji Shashin Film K.K.) Sep. 24, 1985.

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