Fluorane compounds

Details Fluorane compounds Fluorane compounds

1983-05-09

1985-04-02

Milestone, Norma S.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D49310

Patent

active

045089043

ABSTRACT:
Fluorane compounds of the formula (1) ##STR1## in which each of R.sub.1 and R.sub.2 is an H atom or an alkyl.sub.C.sbsb.1.sub.-C.sbsb.12, cycloalkyl.sub.C.sbsb.5.sub.-C.sbsb.7, alkenyl.sub.C.sbsb.2.sub.-C.sbsb.4, phenyl, naphthyl or benzyl group and R.sub.1 and R.sub.2, together with the N atom, can be an optionally alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -substituted piperidine or morpholine radical, R.sub.3 represents an H atom or an alkyl.sub.C.sbsb.1.sub.-C.sbsb.12, cycloalkyl.sub.C.sbsb.5.sub.-C.sbsb.7, alkenyl.sub.C.sbsb.2.sub.-C.sbsb.4, phenyl, naphthyl, benzyl, acetyl, propionyl or benzoyl group, each of R.sub.4, R.sub.5, R.sub.6 and R.sub.7 denotes an alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 group, R.sub.8 is an H atom or an alkyl.sub.C.sbsb.1.sub.-C.sbsb.4, benzyl, acetyl, propionyl or benzoyl group, each of Y.sub.1 and Y.sub.2 represents a hydrogen, fluorine, chlorine or bromine atom or an alkyl.sub.C.sbsb.1.sub.-C.sbsb.4, alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4, nitro, optionally alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -substituted amino, phenyl, naphthyl or benzyl group, and Y.sub.1 and Y.sub. 2 together can be the radical --CH.dbd.CH--CH.dbd.CH-- or the n-butylene radical, B is a direct bond or an alkylene.sub.C.sbsb.1.sub.-C.sbsb.6 or alkenylene.sub.C.sbsb.3.sub.-C.sbsb.6 group, C is a 1,2-phenylene, 1,2-naphthylene, 2,3-naphthylene or 1,8-naphthylene radical and Y.sub.2 and R.sub.3 together can be an optionally alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -substituted alkylene.sub.C.sbsb.2.sub.-C.sbsb.3 or alkenylene.sub.C.sbsb.2.sub.-C.sbsb.3 radical, where each of R.sub.1, R.sub.2, R.sub.3, R.sub.8, Y.sub.1, Y.sub.2, B and C provided they do not represent a direct bond, a hydrogen, chlorine or bromine atom or a nitro group can be substituted independently of one another by fluorine, chlorine or bromine atoms, hydroxyl, alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4, nitro optionally alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -substituted amino, cyano, acetyl, propionyl, optionally alkyl.sub.C.sbsb.1.sub.-C.sbsb.4 -substituted carboxamide, carboxyl or carb(alkoxy.sub.C.sbsb.1.sub.-C.sbsb.4) groups, processes for their preparation, and their use as color formers in a pressure- or heat-sensitive recording material.

REFERENCES:
patent: 3901918 (1975-08-01), Koga et al.

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