CAS: 26998-80-1; 2,3,4-Trimethylphenol

专利信息

专利号:WO-2024180231-A1
优先权日:2023-03-01
标题 :Synthesis of dimethylphenol or trimethylphenol from 2,5-dimethylfuran using a platinum catalyst
发明人：BALDINGER THOMAS; BONRATH WERNER; GOETZINGER ALISSA; KUENZI ROLF; LETINOIS ULLA; SCHUETZ JAN
权利人:DSM IP ASSETS BV
摘要:The present invention relates to the manufacturing of dimethylphenols, particularly 2,5-dimethylphenol, respectively trimethylphenols, particularly 2,3,6-trimethylphenol, from 2,5-dimethylfuran and acetylene, respectively propyne, particularly in MAP gas, in the presence of a platinum catalyst. This invention offers a sustainable synthesis of β-tocopherols, respectively α-tocopherols.

专利号:US-10239812-B2
优先权日:2017-04-27
标 题 :Systems and methods for synthesis of phenolics and ketones
发明人：FEDIE RONALD LEIGH; YAN BINGWEN; MCNEFF LARRY C; GREUEL PETER G; MCNEFF CLAYTON V
权利人:SARTEC CORP
摘要:Embodiments herein relate to apparatus and systems for phenolic and ketone synthesis and methods regarding the same. In an embodiment, a method of producing phenolics and ketones is included. The method can specifically include forming a reaction mixture comprising nanocrystalline cellulose (NCC) and water. The method can also include contacting the reaction mixture with a metal oxide catalyst at a temperature of 350 degrees Celsius or higher and a pressure of at least about 3200 psi to form a reaction product mixture. The reaction product mixture can include at least about 20 wt. % phenolics and at least about 10 wt. % ketones as a percentage of the total mass of nanocrystalline cellulose (NCC). Other embodiments are also included herein.

专利号:US-7226661-B2
优先权日:2003-02-03
标题:Synthesis of quinones and phenols on solid support
发明人：MARTINEZ LUIS E
权利人:UNIV TEXAS
摘要:Generally, and in one form, the present invention is a method of making a benzene-modified compound on solid support that includes the steps of forming an (oxy)(aryl)carbene complex, esterifying the (oxy)(aryl)carbene complex to form an (ester)(aryl)carbene complex, and contacting the (ester)(aryl)carbene complex with a solid support such that the (ester)(aryl)carbene complex is bound to the solid support. In another form, the present invention includes compositions for the resulting (ester)(aryl)carbene complexes on solid support, such as any resulting solid support compounds formed after the initial coupling as well as those from any subsequent reaction, including those with linkers and on a solid support. The method and compositions of the present invention yield stable, durable, highly efficient and cost-effective as well as potentially biologically active lead compounds on solid support.

专利号:WO-0112791-A1
优先权日:1999-08-12
标 题 :Dna shuffling of dioxygenase genes for production of industrial chemicals
发明人：SELIFONOV SERGEY A; NEWMAN LISA M
权利人:MAXYGEN INC; SELIFONOV SERGEY A; NEWMAN LISA M
摘要:This invention provides improved polypeptides, including dioxygenases, dehydrogenases, ligases and transferases that are useful for the biocatalytic synthesis of compounds such as α-hydroxycarboxylic acids, and aryl- and alkyl-hydroxy and carboxylic acid compounds. The polypeptides provided herein are improved in properties such as regioselectivity, enzymatic activity, stereospecificity, and the like. Methods for obtaining recombinant polynucleotides that encode these improved polypeptides are also provided, as are organisms that express the polypeptides and are thus useful for carrying out said biocatalytic syntheses. Also provided by the invention are methods for increasing said solvent resistance of organisms that are used in the synthetic methods.

专利号:US-3859365-A
优先权日:1973-07-19
标 题:Production of alkyl-substituted phenols from cyclohexenones
发明人：YOUNG DAVID A
权利人:EASTMAN KODAK CO
摘要:Alkyl-substituted phenols, particularly 3,4,5- and 2,3,6trimethylphenols, are prepared by heating a suitable alkylsubstituted 2-cyclohexen-1-one in the presence of oxygen, a catalytic amount of cupric chloride, from 0.01 to 2.0 moles of hydrochloric acid and a water compatible organic solvent at a temperature of from 20 to 200*C. The phenols are especially useful as germicidal materials, for conversion into soil insecticidal materials and as intermediates for the synthesis of trimethylhydroquinone.

专利号:US-3833673-A
优先权日:1971-11-09
标 题 :Synthesis of alkylated phenols from carbonyl compounds
发明人：BRANNOCK K; HARGIS C
权利人:EASTMAN KODAK CO
摘要:ALKYLATED PHENOLS SUCH AS MONO-, DI-, TRI- OR TETRAMETHYLPHENOLS ARE SYNTHESIZED FROM CARBONYL COMPOUNDS, WITH OR WITHOUT AN ALCOHOL, BY PASSING THE REACTANTS OVER A LITHIUM PHOSPHATE OR MAGNESIUM OXIDE CATALYST AT A TEMPERATURE OF BETWEEN ABOUT 450* AND 600*C. THE CARBONYL COMPOUNDS INCLUDE, FOR EXAMPLE, ACETONE, ISOPHORONE AND ISOBYTYRALDEHYDE, WHILE THE ALCOHOL MAY BE METHANOL. THE ALKYLATED PHENOLS ARE USEFUL AS INTERMEDIATES IN THE PRODUCTION OF VITAMIN E, GERMICIDAL MATERIALS AND RESIN OR POLYMER PRODUCTS.