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Class Information
Number: 568/785
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) > Acyclic polycarbon hydrocarbyl group bonded directly to the benzene ring > Tertiary butyl group > Preparing by catalytic alkylation
Description: Processes wherein the compound is formed in a reaction which adds an alkyl group to the starting material in the presence of a catalyst.

Sub-classes under this class:

Class Number Class Name Patents
568/787 Boron containing catalyst 6
568/789 Heavy metal or aluminum containing catalyst 37
568/786 Silicon containing catalyst 8
568/788 Sulfur containing catalyst 29

Patents under this class:

Patent Number Title Of Patent Date Issued
8207380 Alkylated hydroxyaromatic compound substantially free of endocrine disruptive chemicals and method of making the same Jun. 26, 2012
7705191 Hydrofluoroalkyl phenols having anesthetic properties Apr. 27, 2010
7692047 Process for the alkylation of phenols Apr. 6, 2010
7288683 Method for making alkylated phenols Oct. 30, 2007
6670513 Process for producing alkylated hydroxyl-containing aromatic compounds Dec. 30, 2003
6617476 Process for producing aromatic ring alkylated phenols Sep. 9, 2003
6232485 Production of phosphate esters May. 15, 2001
6049015 Method for C-alkylating hydroxylated aromatic compounds Apr. 11, 2000
5399786 Preparation process of tert-butylphenols Mar. 21, 1995
5356976 2,4-dialkyl-6-sec- alkylphenols Oct. 18, 1994
5345002 Ethylene alpha-olefin copolymer substituted hydroxy aromatic compounds Sep. 6, 1994
5344997 Alkylation of aromatics using a fluorided silica-alumina catalyst Sep. 6, 1994
5302732 Use of ultra-low sodium silica-aluminas in the alkylation of aromatics Apr. 12, 1994
5288927 Para-selective butylation of phenol over fairly large-pore zeolites Feb. 22, 1994
5274174 Process for the production of poly(4-hydroxystyrene) Dec. 28, 1993
5144082 Alkylphenol lubricants from alpha-olefin dimer Sep. 1, 1992
5091594 Process for the production of 2,6-di-tert-butylphenol Feb. 25, 1992
5087772 Method for preparing 4-hydroxystyrene Feb. 11, 1992
4950810 Selective process for preparting 2,4- or 3,6-di-substituted phenol compounds Aug. 21, 1990
4631349 Heterogeneous catalyst process Dec. 23, 1986
4628127 Heterogeneous catalytic alkylation Dec. 9, 1986
4568778 Process for producing tert-amylphenols Feb. 4, 1986
4560809 Alkylation process Dec. 24, 1985
4540831 Mixed-phase hydrocarbon conversion process employing total overhead condenser Sep. 10, 1985
4461916 Process for the production of p-tert-octyl phenol by catalytic alkylation of phenol Jul. 24, 1984
4370506 Terbutylating hydroxyaromatic compounds Jan. 25, 1983
4366331 Process for production of 2,6-di-tert-alkenyl phenols Dec. 28, 1982
4323713 Preparation of mono-tertiary butylhydroquinone Apr. 6, 1982
4316996 Discoloration prevention of phenolic antioxidants Feb. 23, 1982
4092367 Alkylation of phenols May. 30, 1978
3989741 Preparation of antioxidants Nov. 2, 1976
3959489 Polybutyl-2-cinnamylphenols as insect anti-procreants May. 25, 1976

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