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Class 568/652 - Ether oxygen is ortho to the hydroxy


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein an ether oxygen is ortho to a hydroxy
No. of patents: 80
Last issue date: 08/23/2011


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NumberTitleIssue Date
8003828Method of producing reduced coenzyme Qcrystals with excellent handling properties
The present invention provides a method of producing reduced coenzyme Q10 crystals suitable for commercial scale production thereof. According to a method of the present invention of producing a reduced coenzyme Q10 crystal which compris...
08/23/2011
7524993Method of producing reduced coenzyme Qas oily product
The present invention provides a method for obtaining reduced coenzyme Q10 which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, drinks, feeds, cosmetics, medicines, remedies, pre...
04/28/2009
7230141Method for producing toluol derivatives
A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl...
06/12/2007
7208639Method of producing reduced coenzyme Qas oily product
The present invention provides a method for obtaining reduced coenzyme Q10 which is useful as an ingredient in foods, functional nutritive foods, specific health foods, nutritional supplements, nutrients, drinks, feeds, cosmetics, medicines, remedies, pre...
04/24/2007
7049449Method for the preparation of lariciresinol cyclolariciresinol and secoisolariciresinol
A method for the preparation of lariciresinol, cyclolariciresinol or secoisolariciresinol, which method includes the steps of a) reducing hydroxymatairesinol to give 7-hydroxy-secoisolariciresinol, and b) subjecting the 7-hydroxy-secoisolariciresinol obtained in ste...
05/23/2006
6852895Practical, cost-effective synthesis of CoQ10
The present invention provides a convergent method for the synthesis of ubiquinones and ubiquinone analogues. Also provided are precursors of ubiquinones and their analogues that are useful in the methods of the invention. ...
02/08/2005
6541673Process for oxyalkylating phenolic compounds
Phenolic polyether polyols are prepared by a two stage oxyalkylation process, a first stage performed at a high oxyalkylation temperature and a second stage at a lower oxyalkylation temperature. Despite the use of high temperature during oxyalkylation, po...
04/01/2003
6512147Apparatus and process for generating mixed multi-component vapor
A mixed liquid of two or more components different in boiling temperature from each other and soluble in or compatible with each other is evaporated into a mixed vapor having a similar composition to that of the mixed liquid by using an apparatus having a...
01/28/2003
6489514(-)-Secoisolariciresinol as an antioxidant obtained from a new natural source namely stereospermum personatum
This invention relates to a pharmaceutical composition comprising an effective amount of (-)-Secoisolariciresinol together with or associated with an additive useful as an antioxidant; a process for isolating the (-)-Secoisolariciresinol from the plant St...
12/03/2002
6362378Method for etherifying a benzyl alcohol, resulting products and applications
The present invention relates to a process for etherification of a benzyl type alcohol, to the products obtained and to their applications, in particular in the perfumery field. The etherification process of the invention consists of reacting a benzyl typ...
03/26/2002
6274635Alkylated resorcinol derivatives for the treatment of immune diseases
The present invention provides a method, compounds, and compositions for treating a disease associated with immune dysfunction. In accordance with the method, a pharmacologically-acceptable composition including at least one compound selected from the gro...
08/14/2001
6271411Process for preparing 2-aryl-substituted indenes
A process is disclosed for preparing 2-aryl-substituted indenes by reacting an indene with an arene compound substituted with an halogen atom, preferably a iodine atom, or with an organosulphonate group, said reaction being carried out in a basic medium i...
08/07/2001
6013844Preparation of catechol monoethers and catechols
A process for preparing catechol monoethers or catechols of the formula Ia or Ib ##STR1## where R1 and R2 are, independently of one another, hydrogen or C1 -C8 hydrocarbon radicals, and R3 is a C...
01/11/2000
5936102Process for the preparation of 2,2,3,3-tetrafluoro-1,4-benzodioxanes, novel o-(2-bromo-1,1,2,2-tetrafluoroethoxy)-phenols, and novel 2-bromo-1,1,2,2-tetrafluoroethoxy-containing phenyl ethers
The present invention is drawn to a process for preparing a 2,2,3,3-tetrafluoro-1,4-benzodioxane, by cyclocondensing a o-(2-bromo-tetrafluoroethoxy)-phenol in the presence of an acid binder....
08/10/1999
5709720Aromatic ethers of polyalkylphenoxyalkanols and fuel compositions containing the same
Aromatic ethers of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein R is hydroxy, nitro or --(CH2)x -NR5 R6, wherein R5 and R6 are independ...
01/20/1998
5508461Optically active 1-phenyl-2-substituted propane derivatives and methods of producing the same
An (S)-1-phenyl-2-substituted propane derivative shown by the following formula (I) ##STR1## wherein R1 and R2 represent a lower alkyl group, etc., or R1 and R2 may form together an alkylene group, etc.; R
04/16/1996
5416242Hydroquinone derivative
Novel hydroquinone derivatives of the formulae (I) and (II), ##STR1## wherein R1 is an alkyl group having 7 to 11 carbon atoms, ##STR2## wherein each of R2 to R5 is independently a hydrogen atom, a lower alkyl gr...
05/16/1995
5414158Method of preparing alkoxy-magnesium halides
It has surprisingly now been discovered that alkoxy-magnesium halides of the general formula ROMgX wherein R is an alkyl having from about 1 to 18 carbon atoms and X is a halide can be synthesized in an inert hydrocarbon in just one step process by reacti...
05/09/1995
5319148Preparation of pyrocatechol monoethers and pyrocatechols
The preparation of pyrocatechol monoethers or pyrocatechols of the formula Ia or Ib respectively ##STR1## ( R1 and R2 =H or C1 --C8 -hydrocarbon radicals; R3 =C1 --C8 -hydro...
06/07/1994
5262573Halomagnesium hydrocarbyloxide composition and process for preparation
A substantially pure, chemically distinct halomagnesium alkoxide compound is formed by reaction of a dihydrocarbylmagnesium compound with a compound which will replace an hydrocarbyl functionality thereon with an hydrocarbyloxy functionality and thereafte...
11/16/1993
5248835Method of producing a monoalkylether of a dihydric phenol compound
A monoalkylether of a dihydric phenol compound is produced at a high conversion and selectivity by catalytically dehydration reacting a dihydric phenol compound with a lower monohydric alcohol in the presence of a catalyst comprising at least one inorgani...
09/28/1993
5189225Process for catalytically producing monoalkylether of dihydric phenol compound
A monoalkylether of dihydric phenol compound is produced by bringing a feed gas comprising a mixture gas of a dihydric phenol compound with a monohydric alcohol compound into contact with an active catalyst component comprising at least one member selecte...
02/23/1993
5149888Hydroxylation of phenols/phenol ethers
The phenols and phenol ethers, e.g., phenol itself, are effectively hydroxylated by reacting hydrogen peroxide therewith, in the presence of a catalytically effective amount of titanium dioxide....
09/22/1992
5146010Pyrolysis of naturally occurring cresylic acid mixtures
A process for removing guaiacols from naturally-occurring cresylic acid mixtures by pyrolysis is described....
09/08/1992
5097078Catalytic hydroxylation of phenols/phenol ethers
The phenols and phenol ethers are hydroxylated by reacting such phenols/phenol ethers with hydrogen peroxide, in the presence of (a) a catalytically effective amount of an alkali metal or alkaline earth metal salt of at least one protonic acid having a pK...
03/17/1992
5082978Selective monomethylation of phenolic compounds
Mono-, di- and triphenols are selectively monomethylated by reaction with para-dimethoxybenzene in the presence of a catalytically effective amount of an acid catalyst....
01/21/1992
5025095Substituted diallylphenol derivatives as reactive diluents for bismaleimides
Substituted diallylphenol derivatives are useful as reactive diluents for bismaleimides. Formulations comprising bismaleimides and substituted diallylphenol derivatives are particularly useful in resin transfer molding and filament winding techniques....
06/18/1991
50157693-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibers, and new intermediate 4,5-dinitrophenols
New 3-amino-4-nitrophenols, the process for preparation thereof and their use in dyeing keratinous fibers, and new intermediate 4,5-dinitrophenols. The present invention relates to a 3-amino-4-nitrophenol of formula: ##STR1## where Z denotes --CH2
05/14/1991
4982012Two phase process for preparing 2-methallyloxyphenol from catechol
2-Methallyloxyphenol is produced selectively in good yield, high purity and without having to separate and recycle large amounts of catechol, in the reaction of methallyl chloride with catechol, by forming a substantially non-aqueous mixture of an alkali ...
01/01/1991
4959391Phenol derivatives, pharmaceutical compositions containing these compounds and processes for the preparation of these compounds and compositions
Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R1 is hydrogen, an optionally substituted alkyl or phe...
09/25/1990
4946865Dipropargyloxybenzene compounds and their production
A compound of the formula: ##STR1## wherein X is a hydrogen atom, a halogen atom, a C1 -C3 alkyl group or a C1 -C3 alkoxy group and Y is a hydrogen atom, a halogen atom, a cyano group, a formyl group, an et...
08/07/1990
4851587Single solvent process for preparing 2-methallyloxy-phenol from catechol
2-Methallyloxyphenol precursor to 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran is prepared selectively and in good yield in the etherification of an alkali metal catecholate by methallyl chloride in an improved process using the same solvent medium f...
07/25/1989
4822925Organosalts of metalate anions and process for the production of alkylene glycols therewith
Novel vicinal dioxyalkylene organometalates comprising a cation having a hydrocarbyl-containing substituent are disclosed. The vicinal dioxyalkylene organometalates can be reacted with water to yield alkylene glycols....
04/18/1989
4820879Preparation of hydrocarbyloxy magnesium halides
The present invention provides a process for making hydrocarbyloxy magnesium halides by reacting in an inert atmosphere under anhydrous conditions activated magnesium metal with an oxygen containing compound of 1 to 20 carbon atoms and an anhydrous hydrog...
04/11/1989
4760087Phenol derivatives and pharmaceutical compositions containing these compounds
Phenol derivatives of the formula ##STR1## wherein A and B have the same or different meanings and each represent one of the groups --C.tbd.C--, cis--CH.dbd.CH-- or trans--CH.dbd.CH--, R1 is hydrogen, an optionally substituted alkyl or phe...
07/26/1988
4657700Fragrance compositions containing benzyl ethers
The invention concerns novel fragrance compositions containing benzyl ethers of the formula ##STR1## wherein: R1 represents an alkyl group containing one to three carbon atoms, and, R2 represents hydrogen or an alkanoyl group co...
04/14/1987
4644085Rooperol and its derivates
The invention relates to a new anti-cancer chemical compound which has been called rooperol and certain derivatives thereof of the general formula ##STR1## in which A is chosen from the group including a phenyl group, a substituted phenyl group and -...
02/17/1987
4639536Intermediate, its synthesis, and its use in a process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran is prepared by reacting catechol with isobutylene oxide or with a compound having the general formula ##STR1## wherein R is halogen or hydroxyl, and X is halogen, in the presence of a base to form the...
01/27/1987
4618627Catechol derivatives and pharmaceutical compositions thereof for inhibiting anaphylaxis (SRS-A)
A catechol derivative represented by the formula ##STR1## The compounds of this invention are useful for the prophylaxis and treatment for various allergic diseases, ischemic heart diseases and inflammations caused by slow reacting substance of anaph...
10/21/1986
4618728Water aided catechol etherification
A method is disclosed for facilitating selective etherification of catechol with methallyl chloride in the absence of an etherification catalyst, in which there is employed a solvent system comprising an aliphatic ketone and an etherification aiding amoun...
10/21/1986
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