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Class Information
Number: 552/268
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Polycyclo ring system containing anthracene configured ring system having at least one double bond between ring members and having oxygen single bonded or any atom double bonded directly at the 9- and 10-positions (e.g., anthraquinones, etc.) > Processes of forming anthraquinone per se or enolic form thereof by reacting an organic acid, aldehyde, anhydride or an indane (e.g., reacting phthalic anhydride, methyl phenylindane, etc.)
Description: Processes of forming anthraquinone, per se, or an enolic form thereof by utilizing an organic acid, an aldehyde, an anhydride or an indane as one of the reactants.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7504495 |
Quencher compositions comprising anthraquinone moieties |
Mar. 17, 2009 |
| 6727372 |
Colorant compounds containing copolymerizable vinyl groups |
Apr. 27, 2004 |
| 6399795 |
Method for producing 2-(4-methyl-3-pentenyl) anthraquinone |
Jun. 4, 2002 |
| 6180804 |
Reversion of expoxide in the production of Hydrogen peroxide |
Jan. 30, 2001 |
| 6057461 |
Method for preparing substituted anthraquinone and application to the preparation of rheins |
May. 2, 2000 |
| 5733880 |
Anthracene derivatives for use as anticancer agents |
Mar. 31, 1998 |
| 5424421 |
Synthesis of carminic acid and principal intermediates |
Jun. 13, 1995 |
| 5041571 |
Process of producing anthraquinones in one step |
Aug. 20, 1991 |
| 4822527 |
Process for preparation of anthraquinones and fluorenones |
Apr. 18, 1989 |
| 4781862 |
Process for the preparation of anthraquinone |
Nov. 1, 1988 |
| 4739062 |
Method of producing paraquinones |
Apr. 19, 1988 |
| 4717451 |
Process for the preparation of anthraquinone dispersions and their use in alkaline wood digestion processes |
Jan. 5, 1988 |
| 4666632 |
Process for the preparation of anthraquinone |
May. 19, 1987 |
| 4591460 |
Process for the decomposition of a complex of orthobenzoyl-benzoic acid, hydrogen fluoride and boron trifluoride |
May. 27, 1986 |
| 4477380 |
Oxidation process of reactive aromatics with reactivation of the catalyst using potassium permanganate |
Oct. 16, 1984 |
| 4459234 |
Process for producing anthraquinone |
Jul. 10, 1984 |
| 4405523 |
Process for preparation of benzophenone, anthraquinone and O-dibenzoylbenzene |
Sep. 20, 1983 |
| 4379092 |
Process for the preparation of anthraquinone and its substituted derivatives |
Apr. 5, 1983 |
| 4312811 |
Process for the production of substituted anthraquinones |
Jan. 26, 1982 |
| 4304724 |
Process for the manufacture of anthraquinone |
Dec. 8, 1981 |
| 4284576 |
Preparation of anthraquinone from tetrahydroanthraquinone |
Aug. 18, 1981 |
| 4220597 |
Process for the preparation of anthraquinone |
Sep. 2, 1980 |
| 4185023 |
Catalytic oxidative process for the manufacture of anthraquinone from o-benzyl toluene |
Jan. 22, 1980 |
| 4185024 |
Nitric acid process for the manufacture of anthraquinone from o-benzyl-toluene |
Jan. 22, 1980 |
| 4155922 |
Process for the purification of crude anthraquinone |
May. 22, 1979 |
| 4151182 |
Production of anthraquinone |
Apr. 24, 1979 |
| 4087458 |
Process for preparation of 2-(amylbenzoyl)benzoic acid |
May. 2, 1978 |
| 4045456 |
Manufacture of anthraquinones |
Aug. 30, 1977 |
| 4033987 |
Isolating naphthoquinone and phthalic anhydride from naphthalene oxidation product |
Jul. 5, 1977 |
| 3998857 |
Process for preparing anthraquinone |
Dec. 21, 1976 |
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