Process for the preparation of fluoran compounds which are subst

Details Process for the preparation of fluoran compounds which are subst Process for the preparation of fluoran compounds which are subst

1986-05-05

1989-02-21

Hollrah, Glennon H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31188

Patent

active

048066575

ABSTRACT:
A process for the preparation of fluoran compounds which are substituted by basic groups and have the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen, halogen or lower alkyl, or R.sub.1 and R.sub.2 together with the carbon atom to which they are attached are a fused benzene nucleus,

REFERENCES:
patent: 3669711 (1972-06-01), Kimura et al.
patent: 3681390 (1972-08-01), Lin
patent: 3746562 (1973-07-01), Lin
patent: 3873573 (1975-03-01), Farber et al.
patent: 4341403 (1982-07-01), Igarashi et al.
patent: 4414399 (1983-11-01), Schmidt et al.
J. F. W. McOmie, Protective Groups in Organic Chemistry (1973), pp. 46-49.

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