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Class Information
Number: 568/783
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 > Preparing by isomerization
Description: Processes wherein the compound is produced by transformation or rearrangement of the elements of a starting compound without adding or taking away any elements.

Patents under this class:

Patent Number Title Of Patent Date Issued
6887820 Method for producing optically active compounds May. 3, 2005
6433236 Acid catalyzed isomerization of substituted diaryls Aug. 13, 2002
5399786 Preparation process of tert-butylphenols Mar. 21, 1995
RE34626 Isomerization of bisphenols May. 31, 1994
5053558 Process for the isomerization of cresols Oct. 1, 1991
5015784 Isomerization of bisphenols May. 14, 1991
5015785 Preparation of mixtures of isomeric cresols with a molar ratio of para- to meta-cresol of at least 0.6:1 to 10:1 May. 14, 1991
4709102 Process for producing 2-lower alkyl phenols Nov. 24, 1987
4691063 Isomerization of cresols Sep. 1, 1987
4605790 Phenol from coal and biomass Aug. 12, 1986
4590306 Process for the conversion of meta/para-cresol mixtures May. 20, 1986
4554388 Process for isomerization and transalkylation of alkylphenols Nov. 19, 1985
4538008 Preparation of ortho-alkylated phenols Aug. 27, 1985
4503270 Method of producing 2,3,6 trimethylphenol Mar. 5, 1985
4503269 Isomerization of cresols Mar. 5, 1985
4484011 Process for preparation of 4-isopropylphenol Nov. 20, 1984
4476330 Conversion of ethers using a zeolite catalyst Oct. 9, 1984
4465871 Preparation of 2-t-butyl-4-alkoxy- and 4-hydroxyphenols Aug. 14, 1984
4447657 Preparation of ortho-alkylated phenols May. 8, 1984
4431846 Reduction of o-ethylphenol in m,p-cresol by preferential t-butylation Feb. 14, 1984
4424382 Superacid catalyzed preparation of resorcinol from meta-isopropylepheol Jan. 3, 1984
4346249 Preparation of para-isopropenylphenol Aug. 24, 1982
4283572 Conversion of alkyl phenyl ether to alkylphenol Aug. 11, 1981
4283571 Process for the catalytic isomerization of o-cresol Aug. 11, 1981
4138411 Process for the isomerization of aromatic alkenyl compounds Feb. 6, 1979
4103096 Preparation of meta-alkylphenols Jul. 25, 1978
4060563 Process for preparing 2-allyl phenol Nov. 29, 1977

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