CAS: 513-86-0; Acetoin

上下游产品

methyl magnesium iodide 2-hydroxy-propionitrile formaldehyd LACTIC ACID biacetyl bis(N-methyl-N-phenylhydrazone) butane-2,3-dione-bis-phenylhydrazone 6,7-dimethyl-8-ribityllumazine 2,2'-biquinoline-4,4'-dicarboxylic acid

Calcium Lactate 反应生成 3-羟基-2-丁酮
参考文献:Lemoigne,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1923,Vol. 177,P. 652
标题:Lemoigne,Comptes Rendus Hebdomadaires Des Seances De L'Academie Des Sciences,1923,Vol. 177,P. 652

专利信息

专利号:US-11198862-B2
优先权日:2018-04-04
标 题 :Method for promoting acetylglucosamine synthesis of bacillus subtilis
发明人：LIU LONG; GU YANG; DENG JIEYING; CHEN JIAN; DU GUOCHENG; LI JIANGHUA
权利人:UNIV JIANGNAN
摘要:The present invention relates to a method for promoting acetylglucosamine synthesis of Bacillus subtilis, which belongs to the field of genetic engineering. The present invention adopts the recombinant Bacillus subtilis BSGNKAP2 as a starting strain, exogenously introducing pyruvate carboxylase BalpycA derived from Bacillus cereus, eliminating the central carbon metabolism overflow of the Bacillus subtilis and avoiding the synthesis of the by-product acetoin; further, five exogenous reducing force metabolic reactions are introduced to replace the reaction of generating NADH in glycolysis pathway and tricarboxylic acid cycle to reconstruct intracellular reducing force metabolism, which specifically comprise glyceraldehyde-3-phosphate ferredoxin dehydrogenase, isocitrate NAD+ dehydrogenase, a malate quinone dehydrogenase, a ketoacid ferredoxin oxidoreductase and a nitrogenase ferritin. In a shake-flask fermentation process using a complex medium, acetylglucosamine yield of the recombinant strain BSGNKAP8 is 24.50 g/L, acetylglucosamine/glucose yield is 0.469 g/g, respectively 1.97 times and 2.13 times of those of the starting strain BSGNKAP2.

专利号:US-2012029226-A1
优先权日:2009-02-06
标题:Method for the synthesis of chiral alpha-aryl propionic acid derivatives
发明人：KAPTEIN BERNARDUS; VLIEG ELIAS; NOORDUIN WILLEM LIEUWE
权利人:KAPTEIN BERNARDUS; VLIEG ELIAS; NOORDUIN WILLEM LIEUWE
摘要:The present invention provides a method for the synthesis of optically pure α-aryl propionic acid derivatives comprising subjecting the corresponding racemic α-aryl propionic acid derivatives to high sheer or impact forces, such as grinding.

专利号:WO-2022127640-A1
优先权日:2020-12-16
标题:Process for synthesis of furan-based diamines
发明人：GUO RUIJING; PIRES RAUL; BEUCK SASKIA; LATORRE MARTINEZ IRENE CRISTINA; PAN XIANGCHENG; JIANG YUAN
权利人:COVESTRO DEUTSCHLAND AG; GUO RUIJING
摘要:The invention provides a process for the synthesis of furan-based diamines based on renewable resources.

专利号:US-6939962-B2
优先权日:2000-07-31
标题:Method for the synthesis of sucrose-6-esters
发明人：CLARK JASON D; LEMAY JR RICHARD R
权利人:TATE & LYLE PLC
摘要:There is described a process for the synthesis of a sucrose-6-ester comprising: (a) reacting a mixture comprising sucrose and a polar aprotic solvent with an organotin-based acylation promoter, while adding a solvent capable of removing water by co-distillation, and removing water by co-distillation, to afford a first reaction mixture which is substantially free from water, followed by (b) adding a carboxylic anhydride to said first reaction mixture to afford a second reaction mixture, and maintaining said second reaction mixture at a temperature and for a period of time sufficient to produce a sucrose-6-ester, characterised in that step (a) is performed at a temperature of from 85 to 125° C. and at a pressure of from 20 to 80 kPa. In the most preferred embodiment, the polar aprotic solvent is DMF, the solvent capable of removing water by co-distillation is cyclohexane, the organotion-based acylation promoter is a 1,3-diacyloxy-1,1,3,3-tetrabutyldistannoxane, and step (a) is performed at approximately 97° C., and approximately 50 kpa, until the weight ratio of tin to water in the first reaction mixture is greater than about 26, when the tin content is measured by X-Ray Fluoresence Analyzer, and the water content is measured by the Karl-Fischer method.

专利号:US-9957622-B2
优先权日:2009-07-23
标 题 :Device and method of obtaining diols and other chemicals using decarboxylation
发明人：MOSBY JAMES; BHAVARAJU SAI; KARANJIKAR MUKUND
权利人:FIELD UPGRADING LTD
摘要:A method for converting carboxylic acids (including carboxylic acids derived from biomass) into hydrocarbons. The produced hydrocarbons will generally have at least two oxygen containing substituents (or other substituents). In one example of application, the electrolysis converts alkali salts of carboxylic acids into diols which can then be used as solvents or be dehydrated to produce dienes, which can then be used to produce elastic polymeric materials. This process allows custom synthesis of high value chemicals from renewable feed stocks such as carboxylic acids derived from biomass.

专利号:WO-2008154743-A1
优先权日:2007-06-19
标题 :Methods for the synthesis of 4-hydroxyisoleucine, stereoisomers and analogs thereof
发明人：LAIRD TREVOR; PHAM ANH THU; SPINDLER FELIX; SCHUMACHER ANDREAS; SACHLEBEN RICHARD A
权利人:INNODIA INC; LAIRD TREVOR; PHAM ANH THU; SPINDLER FELIX; SCHUMACHER ANDREAS; SACHLEBEN RICHARD A
摘要:A method for synthesizing 4-hydroxyisoleucine, stereoisomers and analogs thereof having a general formula I is disclosed herein. The method comprises reacting an alkyl isocyanoacetate of formula III with an acetoin or an acetoin analog of formula II to give an unsaturated N-formyl lactone of formula IV, hydrogenating the unsaturated N-formyl lactone to give N-formyl lactone of formula V and hydrolysing said lactone to yield the desired product of formula I.