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