Process for preparing substituted aminoanthraquinones

Details Process for preparing substituted aminoanthraquinones Process for preparing substituted aminoanthraquinones

1989-11-08

1991-05-21

Waddell, Frederick E.

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

Organic compounds

Polycyclo ring system containing anthracene configured ring...

552249, 552251, 552253, 552254, 552255, 552256, C07C 9724, C07C 5024

Patent

active

050177133

ABSTRACT:
Substituted aminoanthraquinone compounds, which are used for dye stuffs or intermediate thereof, represented by the formula (II) ##STR1## wherein R.sub.3 represents a C.sub.1 -C.sub.6 alkyl group which may be substituted, X represents a hydrogen atom, --COR.sub.1 or --SO.sub.2 R.sub.2 wherein R.sub.1 and R.sub.2 each represents a substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.12 aryl group, and Y and Z represent independently a hydrogen atom, a halogen atom, a nitro group or a C.sub.1 -C.sub.4 alkyl group, is prepared by allowing anthraquinone compounds represented by the formula ##STR2## wherein X, Y and Z are as defined above, to react with alkylating agents in organic solvents in the presence of organic quaternary ammonium salts and alkalies.

REFERENCES:
BIOS 1484 (PB Report 86139), pp. 1, 2, 18, 19, 46 and 69-73.
Chemical Abstract, 104 (5), Abstract No. 33914V.
Chemical Abstract, 91 (4), Abstract No. 22426Z.
Banchett, Anthracene Anthraquinone, 1921, p. 207.
Morrison & Boyd, Organic Chemistry, 3rd ed., 1974, p. 742.

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