Xanthene derivative and a production process of the same

Details Xanthene derivative and a production process of the same Xanthene derivative and a production process of the same

1985-12-06

1988-06-07

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549226, 549227, C07D31182

Patent

active

047497963

ABSTRACT:
This invention relates to a xanthene derivative that develops color on oxidation, so that it is favorably used for a photoresist, a PS plate or a proofing agent. The xanthene derivative, which has the following structural formula (I), is produced by putting a fluoran derivative represented by the following structural formula (II) to an esterification reaction and then to a reduction reaction. ##STR1## In the above formulae R.sub.1 and R.sub.2 independently stand for hydrogen, an alkyl radical with 1 to 8 carbon atoms, a tetrahydrofurfuryl radical, a substitued or an unsubstituted phenyl radical, a substituted or an unsubstituted benzyl radical or a cyclic alkyl radical; in addition, R.sub.1 and R.sub.2 are able to form a ring in pairs. R.sub.3 and R.sub.6 independently stand for hydrogen, chlorine, fluorine, a lower alkyl radical or a lower alkoxy radical. R.sub.4 and R.sub.5 independently stand for hydrogen, chlorine, fluorine, a lower alkyl radical, a lower alkoxy radical, a lower alkoxyalkyl radical, a substituted or an unsubstituted phenyl radical, a substituted or an unsubstituted benzyl radical, an amino radical, a N-substituted or N,N-substituted amino radical or a cyclic alkyl radical; in addition, R.sub.3 and R.sub.4, R.sub.4 and R.sub.5, and R.sub.5 and R.sub.6 are able to form a ring in pairs respectively. R.sub.7 stands for an alkyl radical, a substituted or an unsubstituted phenyl radical or a substituted or an unsubstituted benzyl radical. X stands for hydrogen, chlorine, fluorine, bromine, a nitro radical, a lower alkyl radical or a lower alkylamino radical; and n stands for an integer from 1 to 4 inclusive.

REFERENCES:
patent: 2946750 (1960-07-01), Odell et al.
patent: 3658543 (1972-04-01), Gerlach, Jr. et al.
patent: 4067840 (1978-01-01), Wolf
patent: 4306014 (1981-12-01), Kunikane et al.
patent: 4370401 (1983-01-01), Winslow et al.
Nishikawa, Chemical Abstracts, vol. 90 (1979), 130,635e.
Kunikane et al., Chemical Abstracts, vol. 94 (1981), 74714y.
Pikaev et al., Chemical Abstracts, vol. 95 (1981), 117041s.
Matsushita Elect., Chemical Abstracts, vol. 95 (1981), 178617f.
Chemical Abstracts, 102 (1985), 123125b.
Chemical Abstracts, 102 (1985), 70290t.

Affiliated with

Also associated with

Rating

Xanthene derivative and a production process of the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Xanthene derivative and a production process of the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Xanthene derivative and a production process of the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-845684