| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 568763000 | Polyhydroxy (H of -OH may be replaced by a Group IA or IIA light metal) | 24 |
| 20090192336 | PROCESS FOR PRODUCTION OF ALCOHOL COMPOUND - A process for the production of an alcohol compound represented by the formula (3): | 07-30-2009 |
| 20090306436 | PREPARATION OF PURIFIED HYDROQUINONE AND FORMING OF SAME - Purified hydroquinone is prepared and formed from raw compounds essentially containing hydroquinone associated with very small quantities of impurities including resorcinol and pyrogallol, and includes a distillation purification step in which the resorcinol and pyrogallol are eliminated, directly followed by a step in which the purified hydroquinone is formed. | 12-10-2009 |
| 20090318736 | Production method of aromatic hydroxide - According to the present invention, two hydroxyl groups can be introduced into the 1-position and the 4-position of the benzene ring of an aromatic compound highly efficiently and highly selectively by a one step process to give the corresponding aromatic hydroxide. | 12-24-2009 |
| 20100069682 | PREPARATION OF PURIFIED HYDROQUINONE - Hydroquinone devoid of impurities is prepared from a crude hydroquinone essentially containing hydroquinone and small amounts of impurities including at least resorcinol, pyrogallol and traces of pyrocatechol and comprises at least the following steps: dissolving the crude hydroquinone in water, crystallizing the hydroquinone, separating the purified hydroquinone, and, optionally, drying the purified hydroquinone. | 03-18-2010 |
| 20120264982 | METHOD FOR SEPARATING SALIFIED PHENOLIC COMPOUNDS - A method for separating a salified phenolic compound from a reaction medium including same is described. Also described, is a method for separating salified phenolic compounds from an aqueous reaction medium resulting from the reaction of a phenolic compound and glyoxylic acid in the presence of a base, which leads to a reaction medium including at least the excess of the starting salified phenolic compound and the various salified mandelic compounds resulting from the reaction, wherein the reaction medium including the starting salified phenolic compound is contacted with an adsorbent substrate. This leads to the selective adsorption of the phenolic compound onto said substrate and to the recovery of an aqueous flow containing the salified mandelic compounds from the reaction, and in that the phenolic compound attached onto the adsorbent is desorbed by means of a regenerating treatment of the adsorbent. | 10-18-2012 |
| 20130317258 | CIRCADIAN RHYTHM REGULATORY AGENT - A circadian rhythm regulatory agent having as an active ingredient an alkylresorcinol represented by general formula (I) below and a circadian rhythm regulatory agent containing as an active ingredient an alkylresorcinol-containing extract from a cereal or a nut containing an alkylresorcinol of the following general formula (I). | 11-28-2013 |
| 20160031774 | RANDOM RING PACKING FOR BIOMASS DIGESTER - A method comprises introducing cellulosic biomass solids to a digester comprising a reactor, gas feed line, biomass feed system, fluid circulation system including a fluid inlet, a pump, and an injector, a screen positioned within the reactor and defining a lower zone therebelow, and a bed of reactor packing material resting on the screen and defining thereby a packed zone; providing a liquid phase digestion medium containing a slurry catalyst in the digester, the catalyst being capable of activating molecular hydrogen; circulating the liquid phase digestion medium through the fluid circulation system; supplying an upwardly directed flow of molecular hydrogen through the cellulosic biomass solids; and maintaining the cellulosic biomass solids and slurry catalyst at a temperature sufficient to cause digestion of cellulosic biomass solids into an alcoholic component. | 02-04-2016 |
| 20160200653 | GENERATION METHOD FOR GENERATING 3, 5-DIHYDROXY-4-METHOXYBENZYL ALCOHOL FROM OYSTER MEAT | 07-14-2016 |
| 568764000 | Hydroxymethyl group containing | 3 |
| 20100324343 | PROCESS FOR THE PREPARATION OF HYDROXYTYROSOL - Process for the preparation of hydroxytyrosol, characterized by reacting 4-chloroacetyl-catechol with a metal formate and formic acid in an aqueous solvent optionally containing a lower alkanol and catalytically hydrogenating the 4-hydroxyacetyl-catechol obtained in the presence of a precious metal, preferably on a carrier. | 12-23-2010 |
| 20140256989 | PROCESS FOR THE PREPARATION OF HYDROXYTYROSOL - A process for preparing hydroxytyrosol, wherein a compound | 09-11-2014 |
| 20150011801 | Catalytic Pulsed Flow Hydrogenation Of Lignin Carboxylic Acid Compounds - Renewable resources comprising bagasse, corn stover, wood sawdust and switch grass are subject to direct catalytic conversion or bio-fermentation producing ethanol leaving complex lignin compounds for disposal. Chemical conversion of lignin compounds (recoverable from digested lignin) to substituted phenols followed by a carbon steel catalyzed pulsed flow hydrogenation produces cresol and substituted creosol compounds. The pulsed flow process produced close to 100 percent reduction of the reactants compared to 25 percent with continuous flow and is applicable to aliphatic carboxylic acid compounds such as natural oils producing valued liquid hydrocarbons. | 01-08-2015 |
| 568765000 | Halogen containing | 4 |
| 20090299103 | Reagent for Organic Synthesis and Method of Organic Synthesis Reaction with the Reagent - A reagent for organic synthesis with which a chemical reaction can be conducted in a liquid phase and unnecessary compound(s) can be easily separated at low cost from the liquid phase after completion of the reaction. The reagent for organic synthesis reversibly changes from a liquid-phase state to a solid-phase state with changes in solution composition and/or solution temperature, and is for use in organic synthesis reactions. This reagent for organic syntheses facilitates process development. With the reagent, research on and development of, e.g., medicines through, e.g., compound library synthesis, etc. can be accelerated. It can hence contribute to technical innovations in the biochemical industry and chemical industry. | 12-03-2009 |
| 20100222613 | METHOD FOR PRODUCING HALOGEN-SUBSTITUTED BENZENEDIMETHANOL - A method for producing a halogen-substituted benzenedimethanol represented by the formula (2): | 09-02-2010 |
| 20130211149 | Process for the preparation of hydroquinones - The invention relates to a process for the preparation of a hydroquinone compound of formula (I) | 08-15-2013 |
| 20140194655 | Fluorine-Containing Aromatic Compound and Method for Producing Same - Disclosed is a fluorine-containing aromatic compound represented by the following general formula (1) and its production method. In the formula (1), R | 07-10-2014 |
| 568766000 | Acyclic polycarbon hydrocarbyl group bonded directly to the benzene group | 2 |
| 20120184782 | HEPARANASE ACTIVITY INHIBITOR, WRINKLE IMPROVING AGENT CONTAINING SAME, AND PHARMACEUTICAL COMPOSITION - A heparanase activity inhibitor containing, as an active ingredient, a 4-alkylresorcinol represented by formula (I): | 07-19-2012 |
| 20190144367 | PROCESS FOR PREPARING TAPINAROF | 05-16-2019 |
| 568768000 | Preparing by cleavage of hydroperoxide or other peroxide | 2 |
| 20110152579 | METHOD FOR THE HYDROXYLATION OF PHENOL - The subject of the present invention is a method for the hydroxylation of phenol by hydrogen peroxide. The method of the invention for the hydroxylation of phenol to pyrocatechol and hydroquinone in a pyrocatechol/hydroquinone ratio between 1.7 and 2.3, by reaction of the phenol with hydrogen peroxide, in the presence of a catalyst, is characterized by the fact that the reaction is carried out in the presence of an effective amount of a hydroxyaromatic sulfonic acid. | 06-23-2011 |
| 20140100392 | METHOD FOR HYDROXYLATION OF PHENOL - A method for hydroxylation of phenol is disclosed. The method includes the step of performing a reaction of phenol and hydrogen peroxide to form diphenol in the presence of solid catalyst with zeolite framework, wherein the solid catalyst includes silicon oxide, titanium oxide and cobalt oxide. The solid catalyst used in the preparation of diphenol of the present invention has high conversion rate of diphenol, selectivity of diphenol and higher utilization rate of hydrogen peroxide without using high concentration of hydrogen peroxide. | 04-10-2014 |
| 568771000 | Preparing by oxidation | 4 |
| 20090192337 | PROCESS FOR DIRECT HYDROXYLATION OF AROMATIC HYDROCARBONS - The present invention provides a process for direct hydroxylation of aromatic hydrocarbons like benzene to phenol, toluene to cresols and anisole to methoxy phenols by using hydrogen peroxide as environmentally benign oxidant in polar solvent like acetonitrile using vanadium phthalocyanine or its derivative as a catalyst, at a temperature in the range of 25-100° C. | 07-30-2009 |
| 20140179956 | METHOD FOR PREPARING CATECHOL - A method for preparing catechol is provided. The method includes performing hydroxylation of phenol by using zirconium-containing titanium silicalite as a catalyst in the presence of phenol, a solvent and hydrogen peroxide. The method uses zirconium-containing titanium silicalite as a catalyst to increase the selectivity of phenol and utilization of hydrogen peroxide, and thus to increase the overall reaction yield. | 06-26-2014 |
| 20140221698 | METHOD FOR THE HYDROXYLATION OF PHENOLS AND PHENOL ETHERS - The present invention relates to a method for the hydroxylation of phenols and phenol ethers by means of hydrogen peroxide. The invention specifically relates to a method for the hydroxylation of phenol by means of the hydrogen peroxide. The method of the invention for the hydroxylation of a phenol ether by means of reacting said phenol or phenol ether with the hydrogen peroxide in the presence of an acid catalyst is characterized in that it includes mixing a phenol or phenol ether with a hydrogen peroxide solution in a mixing device under conditions enabling the conversion rate of the hydrogen peroxide to be minimized, and in that said reaction mixture is then placed in a piston flow reactor where the reaction leading to the production of the hydroxylated material takes place, the acid catalyst being fed into the mixing device and/or into the piston flow reactor. | 08-07-2014 |
| 20150299076 | Process for hydroxylation of aromatic compounds, hydroxylation catalyst and process for preparing same - The present invention relates to a process for hydroxylation of a compound of formula (I) by reacting the compound of formula (I) with an oxidizing agent, in the presence of a titanium silicalite zeolite prepared by crystallization preceded by a maturing step. The present invention also relates to a titanium silicalite zeolite and to the process for preparing same. | 10-22-2015 |
| 568772000 | Preparing by reduction or dehydrogenation (e.g., by hydrogenation, etc.) | 1 |
| 20120046498 | METHOD FOR PRODUCING POLYHYDRIC PHENOL - The present invention is a method for producing a polyhydric phenol, including the following steps (a) to (d): (a) a first step of producing (4S,5R,6S)-4,5,6-trihydroxy-2-cyclohexcene- | 02-23-2012 |
