CAS: 13494-07-0; 3,5-Dimethylcyclopentane-1,2-Dione

相似化合物

13494-06-9 765-70-8 3008-40-0

上下游产品

3,5-dimethyl-cyclopent-3-ene-1,2-dione 4,5-dioxo-cyclopentane-1,3-dicarboxylic acid diethyl ester methyl iodide -2-cyclopenten-1-one2,4-dimethyl-4-(dimethylcarbamoyl)thio-2-cyclopenten-1-one 3-(4-chlorobenzyl)-6,8-dimethyl-1-propyl-7,8-dihydro-1H-cyclopenta[g]pteridine-2,4(3H,6H)-dione 2,(2,6-diisopropylphenylamino)-3,5-dimethylcyclopent-2-enone

3,5-二甲基-环戊-3-烯-1,2-二酮置于lindlar'S Catalyst,乙醚体系中,化学反应生成3,5-二甲基-1,2-环戊二酮
参考文献:Nasarow; Torgow,Izvestiya Akademii Nauk Sssr,Seriya Khimicheskaya,1951,P. 417,422
标题:Nasarow; Torgow,Izvestiya Akademii Nauk Sssr,Seriya Khimicheskaya,1951,P. 417,422

专利信息

专利号:US-2019315790-A1
优先权日:2016-11-11
标题:Synthesis of d-allulose
发明人：KOCH TIMO JOHANNES; KIPPING FLORIAN; BUTZ STEFFEN; LESCH MARCEL; HÄSSLER THOMAS
权利人:PFEIFER & LANGEN GMBH & CO KG
摘要:The invention relates to a process for the synthesis of a product saccharide, preferably of D-allulose from an educt saccharide, preferably from D-fructose under heterogeneous or homogeneous catalysis which includes chemical and/or enzymatic catalysis. The synthesis is performed in at least two reactors that are arranged in series and the reaction product exiting the first reactor is subjected to chromatographic separation before it enters the second reactor. Preferably, the chromatographic separation is integrated in a simulated moving bed.

专利号:US-5110950-A
优先权日:1991-06-12
标题 :Method of preparing 2-phosphorylated compounds of ascorbic acid
发明人：SEIB PAUL A; WANG XIAO Y
权利人:UNIV KANSAS STATE
摘要:A catalyzed synthesis of ascorbate 2-phosphorylated compounds is provided which gives both mono-and polyphosphorylated species in excellent yield using inexpensive, readily available reactants. The method involves forming a reaction mixture of an ascorbic acid reactant such as L-ascorbic acid and a metaphosphate phosphorylating agent (e.g., sodium trimetaphosphate), and carrying out the phosphorylation reaction in the presence of a catalyzing ion selected from the group consisiting of calcium, strontium and barium ion and mixtures thereof, while maintaining the pH of the reaction mixture at a level of from about 3-12. The synthesis is characterized by very short reaction times, preferably from about 15 minutes-2 hours, and moderate temperatures on the order of 18 DEG C.-25 DEG C. Preferably, the catalyzing ion is provided by addition of calcium, strontium or barium hydroxide to the reaction mixture, this serving to also elevate the pH of the system to the desired range.

专利号:US-5428116-A
优先权日:1991-02-27
标题 :Synthesis of complex polyamines for ampholyte production
发明人：RODKEY L SCOTT; DESHONG PHILIP R
权利人:UNIV TEXAS
摘要:New synthesis and analysis procedures for novel crosslinked polyamines and ampholytes. Polyamines are crosslinked with tartaric acid ester, malonic acid ester, or polycarboxylic acid esters of the citric acid cycle. The resulting crosslinked polyamine may further react with other compounds such as an α,β-unsaturated or α-halo unsaturated carboxylic acids to prepare new ampholyte mixtures. The resulting novel ampholytes exhibit greater heterogeneity and complexity than presently prepared ampholytes, and can be used in analytical and preparative isoelectric focusing processes. n Novel ampholyte analysis process entails analyzing chemical compounds, usually ampholytes, used in isoelectric focusing processes. The ampholyte is isoelectrically focused on an immobilized pH gradient, and then immersed in a picric acid solution to cause precipitation and visualization of amphoteric species. The isoelectrically focused and visualized ampholyte compounds may be photographed or analyzed densitometrically to compare it with other isoelectrically focused and visualized ampholytes to determine relative heterogeneity of the ampholytes over given pH ranges.

专利号:US-2017204442-A1
优先权日:2014-05-29
标题 :Enzymatic synthesis of soluble glucan fiber
发明人：DICOSIMO ROBERT; CHENG QIONG; ELIOT ANDREW C; OUWEHAND ARTHUR; PAYNE MARK S; YOU ZHENG
权利人:DU PONT
摘要:An enzymatically produced soluble α-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble α-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble α-glucan fiber are also provided.

专利号:US-7811612-B2
优先权日:2005-01-20
标 题 :Herbal mixture extract of notoginseng radix, rehmanniae radix preparata and acanthopanacis cortex and composition comprising the same for prevention and treatment of arthritis
发明人：KIM JUNG-KEUN; KIM SE-WON; KIM HYUNG-GUN; KO SEON-YLE; BAEK DONG-HEON; CHANG SUNHWA
权利人:OSCOTEC INC
摘要:The present invention relates to an extract of an herbal mixture of Notoginseng radix, Rehmanniae radix preparata and Acanthopanacis cortex , and a method for treating arthritis using the extract as an effective ingredient. The extract of the herbal mixture of the present invention can effectively inhibits the release of inflammatory substances and the synthesis of cartilage destroying substance as well as the progress of arthritis.

专利号:US-2004267028-A1
优先权日:2001-09-24
标题 :Preparation and use of pyrrole derivatives for treating obesity
发明人：SMITH ROGER A; KLUENDER HAROLD C; SU NING; LAVOIE RICO C; FAN JIANMEI
权利人:SMITH ROGER A; KLUENDER HAROLD C; SU NING; LAVOIE RICO C; FAN JIANMEI
摘要:This invention relates to pyrrole derivatives which have been found to suppress appetite and induce weight loss. The invention also provides methods for synthesis of the compounds, pharmaceutical compositions comprising the compounds, and methods of using such compositions for inducing weight loss and treating obesity and obesity-related disorders.