Patents for C07C 46 - Preparation of quinones (1,836) |
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01/24/1978 | US4070382 Intermediates for polycyclic quinoid antibiotics |
01/10/1978 | US4067890 Oxidative coupling of alkylphenols, alkoxyphenols and naphthols catalyzed by metal complexes of amino carboxylic and amino sulfonic acids |
12/13/1977 | US4062879 Multistage, from 2-methyl-4,5,6-trimethoxyphenol and a boron compound |
12/06/1977 | US4061660 Process for synthesis of coenzyme Q compounds |
10/25/1977 | US4055661 Miticidal and aphicidal method utilizing 2-higher alkyl-3-hydroxy-1,4-naphthoquinone carboxylic acid esters |
10/18/1977 | US4054587 Preparation of chloroanthraquinones from nitroanthraquinones |
10/11/1977 | US4053634 Miticidal and aphicidal method utilizing 2-higher alkyl-3-hydroxy-1,4-naphthoquinone carboxylic acid esters |
09/20/1977 | US4049705 Useful for preparation of naphthoquinone miticides |
08/30/1977 | US4045456 Cyclization of o-benzoylbenzoic acid |
08/02/1977 | US4039573 Acid catalyst |
07/19/1977 | US4036861 Oxidation of a diphenylmethane, vanadium oxide catalyst |
07/19/1977 | US4036860 Production of anthraquinone |
07/12/1977 | US4035396 Process for preparing alkylanthraquinone |
07/05/1977 | US4033987 Isolating naphthoquinone and phthalic anhydride from naphthalene oxidation product |
06/28/1977 | US4032548 Process for preparing 1,4-naphthoquinone |
05/03/1977 | US4021457 Multistage, multizonal; from 4-hydroxy-quinizarinquinone derivatives |
04/12/1977 | US4017639 2-Hydroxy-3-nitro-1,4-naphthoquinones for the prophylaxis of certain allergies |
04/05/1977 | US4016211 Stabilized polyglycol for high temperatures |
03/29/1977 | US4014907 2-Hydroxy-3-nitro-1,4-naphthoquinones |
02/01/1977 | US4006171 From nitroanthraquinone and halogen |
01/18/1977 | US4003923 Oxidation with a copper and alkali metal carboxylate, halide or oxide catalyst |
01/11/1977 | US4002653 Oxidation of diphenylmethanes using vanadium pentoxide and titanium dioxide as catalysts |
12/21/1976 | US3998857 Process for preparing anthraquinone |
10/19/1976 | US3987068 Oxidation of monohydroxy aryl compounds to 1,4-quinones |
09/28/1976 | US3983145 Use of alpha-di(lower alkoxy) anthraquinones in the synthesis of Alizarin Saphirols |
08/10/1976 | US3974187 Benzoquinones, 6-alkyl- |
08/10/1976 | US3974186 Bis-basic ethers of 2,6- and 2,7-dihydroxyanthraquinones |
06/29/1976 | US3966776 Process for preparing parabenzoquinones |
05/11/1976 | US3956346 Oxidizing trimethylphenol with manganese dioxide |
04/27/1976 | US3953482 Process for producing quinones |
04/06/1976 | US3948958 Process for making 3-prenylated menaquinones and ether intermediates |
03/02/1976 | US3941811 Of a hydroxy to a carbonyl, silver silicate oxidizer |
01/27/1976 | US3935247 Cobalt or copper phthalocyanine catalyst |
01/20/1976 | US3933681 Activation of copper salt phenol oxidation catalysts |
01/13/1976 | US3932475 Process for producing trimethyl-p-benzoquinone |
01/13/1976 | US3932474 From benzene or benzophenone and carbon monoxide, metal halide catalyst |