Patents for C07C 50 - Quinones (2,441)
08/1978
08/29/1978US4110473 Miticidal ethers
05/1978
05/16/1978US4089873 Preparation of menaquinones
04/1978
04/25/1978US4086253 3,3',5,5'-Tetra-substituted diphenoquinone from 2,6-disubstituted phenol by phase-transfer catalysis
04/18/1978US4085124 Oxidative coupling of alkylphenols, alkoxyphenols and 1-naphthols catalyzed by metal complexes of amino compounds
03/1978
03/21/1978US4080370 Process for producing high purity methoxyanthraquinones
03/07/1978US4077988 Optically active anthracyclinones
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
10/18/1977US4054587 Preparation of chloroanthraquinones from nitroanthraquinones
09/1977
09/27/1977US4051168 To form fluoroalkyl aromatic compounds
09/20/1977US4049705 Useful for preparation of naphthoquinone miticides
08/1977
08/02/1977US4039573 Acid catalyst
07/1977
07/19/1977US4036861 Oxidation of a diphenylmethane, vanadium oxide catalyst
07/19/1977US4036860 Production of anthraquinone
07/12/1977US4035399 Vanadium pentoxide
07/05/1977US4033987 Isolating naphthoquinone and phthalic anhydride from naphthalene oxidation product
06/1977
06/28/1977US4032548 Process for preparing 1,4-naphthoquinone
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
02/22/1977US4009200 Hexahalo-1,4-dihydro-1,4-methano-napth-5,8-ylene acetates
02/01/1977US4006171 From nitroanthraquinone and halogen
01/1977
01/11/1977US4002654 Acidifying group ia or iia salts of anthraquinonedisulfonic acid with mineral acid
01/11/1977US4002653 Oxidation of diphenylmethanes using vanadium pentoxide and titanium dioxide as catalysts
12/1976
12/21/1976US3998913 Abs terpolymer and a molecular complex of 1,2,3,4,9,9-hexachloro-1,4-dihydro-1,4-methanonaphthalene-5,8-diol
10/1976
10/19/1976US3987068 Oxidation of monohydroxy aryl compounds to 1,4-quinones
10/05/1976US3984593 5,6,11,12-Tetraselenotetracene-o-chloroanil complexes
09/1976
09/28/1976US3983145 Use of alpha-di(lower alkoxy) anthraquinones in the synthesis of Alizarin Saphirols
08/1976
08/31/1976US3978096 Production of 1-chloroanthraquinone
08/24/1976US3976667 Steffimycinone, 7-deoxysteffimycinone and derivatives
08/10/1976US3974187 Benzoquinones, 6-alkyl-
05/1976
05/18/1976US3957836 Vitamin-like activity
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
03/30/1976US3947594 4-Halo-1-hydroxyanthraquinone containing fungicidal composition
01/1976
01/20/1976US3933681 Activation of copper salt phenol oxidation catalysts
01/13/1976US3932525 Molecular complexes of DMSQ
01/06/1976US3931254 Process for the preparation of anthraquinone
1 ... 15 16 17 18 19 20 21 22 23 24 25