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Class Information
Number: 568/804
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Benzene ring containing > Phenols (h of -oh may be replaced by a group ia or iia light metal) > Preparing by methylation
Description: Processes wherein the compound is formed in a reaction which adds a methyl group to the starting material.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7288683 Method for making alkylated phenols Oct. 30, 2007
7087705 Process for the monoalkylation of dihydroxy aromatic compounds Aug. 8, 2006
7081432 Alkylation catalyst and method for making alkylated phenols Jul. 25, 2006
6951966 Orthoalkylation catalyst for phenol and process for producing orthoalkylated phenol with use thereof Oct. 4, 2005
6846962 Selective production of o-alkylphenols Jan. 25, 2005
6617476 Process for producing aromatic ring alkylated phenols Sep. 9, 2003
6593501 Process for the preparation of 2,6-xylenol Jul. 15, 2003
6417410 Method for producing ortho-alkylated phenols Jul. 9, 2002
6303801 Process for producing alkyl-substituted hydroquinones Oct. 16, 2001
6291724 Suppression of highly alkylated phenols in the catalytic alkylation reaction of phenol Sep. 18, 2001
6239317 Process for the production of halogeno-o-hydroxydiphenyl compounds May. 29, 2001
5847237 Catalyst for ortho-alkylation of phenols, a precursor thereof, and production of ortho-alkylated phenols by use of said catalyst Dec. 8, 1998
5817886 Process for production of alkyl ether of phenol and catalyst used therein Oct. 6, 1998
5633411 Method for production of allyloxystyrene compounds May. 27, 1997
5488173 Process for selective ortho-methylation of cyclohexanones in the vapor phase Jan. 30, 1996
5371306 Modified magnesium oxide catalyst Dec. 6, 1994
5344997 Alkylation of aromatics using a fluorided silica-alumina catalyst Sep. 6, 1994
5274174 Process for the production of poly(4-hydroxystyrene) Dec. 28, 1993
5256809 Method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom Oct. 26, 1993
5175377 Process for preparing an ortho-alkylated phenol Dec. 29, 1992
5132468 C-alkylation of hydroquinone or monoethers thereof Jul. 21, 1992
5105029 Process for recovering a lower alcohol from a catechol-lower alcohol reaction product solution Apr. 14, 1992
5097079 Zinc-containing ortho-alkylation catalyst precursor and catalyst, and process of use in alkylation of phenols Mar. 17, 1992
5087772 Method for preparing 4-hydroxystyrene Feb. 11, 1992
5059727 Method for alkylation of phenols, and catalyst therefor Oct. 22, 1991
5041641 Pentafluorophenyl derivatives, methods of production thereof, and method of optical resolution of chiral carboxylic acids Aug. 20, 1991
4954475 Zinc-containing ortho-alkylation catalyst precursor and catalyst, and process of use in alkylation of phenols Sep. 4, 1990
4933509 Method of ortho-alkylating phenol Jun. 12, 1990
4906793 Silica-titania hydrocarbon conversion catalyst Mar. 6, 1990
4876398 Preparation of ortho-alkylated phenols in the presence of a catalyst prepared by co-precipitation process Oct. 24, 1989
4851591 Magnesium-containing catalyst activated under vacuum, in nitrogen, or in air, and use in an ortho-alkylation process Jul. 25, 1989
4814531 Silica-titania hydrocarbon conversion catalyst Mar. 21, 1989
4753913 Gas-phase alkylation of phenols, and a catalyst for this purpose Jun. 28, 1988
4677089 Catalyst prepared from manganese carbonate and a magnesium compound Jun. 30, 1987
4661638 Catalyst derived from mixture of manganese hydroxide and magnesium-containing material, and method of use in ortho-alkylation of phenols Apr. 28, 1987
4644086 Process and catalyst for the orthomethylation of phenols Feb. 17, 1987
4590306 Process for the conversion of meta/para-cresol mixtures May. 20, 1986
4590307 Catalyst precursor prepared from manganese carbonate, and use of a calcined derivative in an ortho-alkylation process May. 20, 1986
4568662 Process for preparing alkylation catalysts Feb. 4, 1986
4554267 Catalyst and method for ortho-alkylation of hydroxyaromatic compounds Nov. 19, 1985
4554266 Copper-magnesium catalyst and method for alkylation of hydroxyaromatic compounds therewith Nov. 19, 1985
4551563 Method for making polymethylated phenols Nov. 5, 1985
4547480 Catalyst precursor prepared from manganese carbonate and a magnesium compound Oct. 15, 1985
4532368 Process for making meta- and para-alkylphenols Jul. 30, 1985
4528407 Catalytic process for preparation of ortho-alkylated phenols Jul. 9, 1985
4517389 Process for methylating the ortho position of a phenol May. 14, 1985
4514577 Chemical process for preparing di-ortho benzyl phenols Apr. 30, 1985
4503272 Process for making ortho-alkylated phenols Mar. 5, 1985
4482758 Process for the orthomethylation of phenolic compounds Nov. 13, 1984
4476329 Selective alkylation of phenol to o-cresol Oct. 9, 1984

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