CAS: 565-80-0; 2,4-Dimethyl-3-Pentanone

上下游产品

CAS号79-31-2 异丁酸 | CAS号75-30-9 2-碘代丙烷 | CAS号1113-74-2 3-Pentanone,2,4... | CAS号4421-10-7 2,2-二异丙基-1,3-二氧戊环 | CAS号600-36-2 2,4-二甲基-3-戊醇 | CAS号64-19-7 冰醋酸 | CAS号1068-55-9 异丙基氯化镁 | CAS号79-30-1 异丁酰氯 | CAS号67-64-1 丙酮 | CAS号105732-47-6 2-benzyl-2-meth... | CAS号1113-74-2 3-Pentanone,2,4... | CAS号4651-94-9 2-氨基-3-腈基-4,5-二甲基噻吩 | CAS号307-59-5 全氟十二烷 | CAS号57241-96-0 1H,1H,1H,2H,2H,... | CAS号600-36-2 2,4-二甲基-3-戊醇 | CAS号108-94-1 环己酮 | CAS号142534-87-0 3-(ethoxymethyl... | CAS号151223-12-0 (S)-4-(2-羟乙基)-2... | CAS号4447-64-7 ethyl 2,2,4-tri...

2,2-二异丙基-1,3-二恶茂烷置于silica Gel 二氧化氮体系中,用 四氯化碳 作为反应溶剂,化学反应 0.67H,以100%的收率获得产物2,4-二甲基-3-戊酮
参考文献:在硅胶存在下,二氧化氮将缩酮转化为酮
标题:在硅胶存在下,二氧化氮将缩酮转化为酮
摘要:在硅胶存在下,在中性,无水和温和条件下,二氧化氮将缩酮转化为酮.
DOI:10.1039/c39950001121

专利信息

专利号:US-2010099894-A1
优先权日:2006-10-09
标 题 :Method for the Synthesis of Cyclic Acetals by the Reactive Extraction of a Polyol in a Concentrated Solution
发明人：DUBOIS JEAN-LUC; IBORRA CHORNET SARA; VELTY ALEXANDRA I LUCIENNE; CORMA CANOS AVELINO
权利人:DUBOIS JEAN-LUC; IBORRA CHORNET SARA; VELTY ALEXANDRA I LUCIENNE; CORMA CANOS AVELINO
摘要:A method for the synthesis of cyclic acetals comprises reacting at least one carbonyl-function compound selected from aldehydes, ketones, and/or linear acetals, on a polyol in a concentrated aqueous solution exceeding 20 wt % in a reactor containing an acidic catalyst. The carbonyl-function compound is selected so that the cyclic acetal obtained has a water solubility lower than 20000 mg/kg. During the catalytic reaction for the cyclic acetal synthesis, at least one portion of the organic phase containing the cyclic acetal is separated. The acidic catalysis is either homogeneous when using a water-soluble strong acid, or heterogeneous when using a solid acid such as a resin, a zeolite, or any appropriately acidified solid. The extractive reaction method can be used for obtaining high conversions and selectivity.

专利号:EP-0439404-B1
优先权日:1990-01-25
标题 :Preparation of 2-(2'-thienyl) alkylamines and derivatives thereof and synthesis of 4,5,6,7- thieno [3,2-c] pyridine derivatives therefrom
发明人：KHATRI HIRALAL N; DEHOFF BRADLEY S
权利人:SANOFI SA
摘要:An improved process for the synthesis of 2-(2 min -thienyl)ethylamine from suitably functionalized derivatives of 2-(2 min -thienyl)ethanol employing ammonia gas in the presence of a metal salt or liquid ammonia and alkyl ketone as a solvent. The 2-(2 min -thienyl)ethylamine produced by this process is advantageously converted to the carbamic acid salt, which is suitably reconverted to 2-(2 min -thienyl)ethylamine, a useful intermediate in the synthesis of ticlopidine.

专利号:US-5824801-A
优先权日:1996-01-19
标 题:Process for sterospecific synthesis of keto-enol tautomeric mixture of p nitrobenzyl (1R, 6R, 7R)-7-phenoxyacetamido-3-oxo-3-cepham-4-(R/S)-carboxylate-1-oxide and p-nitrobenzyl (1R, 6R, 7R)-7-phenoxyacteamido-3-hydroxy-3-cephem-4-carboxylate-1-oxide
发明人：GUPTA NIRANJAN LAL; SANKARAN RAMANATHAN; CHATTEJEE SUGATA; KRISHNA TUMMA HARI
权利人:LUPIN LAB LTD
摘要:A process for the stereospecific synthesis of keto-enol tautomeric mixture of p-nitrobenzyl (1R,6R,7R)-7-phenoxyacetamido-3-oxo-3-cepham-4-(R/S)-carboxylate-1-oxide and p-nitrobenzyl (1R,6R,7R)-7-phenoxyacetamido-3-hydroxy-3-cephem-4-carboxylate-1-oxide is described. These compounds are valuable intermediates for the synthesis of cephalosporin antibiotics e.g. cefaclor.

专利号:US-7314960-B1
优先权日:2006-09-28
标 题:Catalytic synthesis of oxygenate from alcohol
发明人：LIN SHENG-DIANN; HSIAO TING-CHOU
权利人:UNIV YUAN ZE
摘要:The present invention discloses a method for catalytic synthesis of oxygenate from alcohol. At first, a feeding material comprising at least one alcohol is provided. Next, a copper-containing catalyst is provided and the catalyst further comprises at least one metal element selected from the group consisting of the following: zinc, magnesium, and aluminum elements. Following that, a catalytic reaction of the feeding material over the copper-containing catalyst is carried out to synthesize at least one oxygenate.

专利号:US-5068360-A
优先权日:1990-01-25
标题 :Preparation of 2-(2'-thienyl)ethylamine derivatives and synthesis of thieno(3,2-C)pyridine derivatives therefrom
发明人：DEHOFF BRADLEY S
权利人:SYNTEX INC
摘要:An improved process for the synthesis of 2-(2'-thienyl)ethylamine from suitably functionalized derivatives of 2-(2'-thienyl)ethanol employing ammonia gas in the presence of a metal salt or liquid ammonia and alkyl ketone as a solvent. The 2-(2'-thienyl)ethylamine produced by this process is advantageously converted to ticlopidine.

专利号:US-5191090-A
优先权日:1990-01-25
标题:Preparation of 2-(2'-thienyl)ethylamine derivatives and synthesis of thieno[3,2-c]pyridine derivatives therefrom
发明人：DEHOFF BRADLEY S
权利人:SYNTEX INC
摘要:An improved process for the synthesis of 2-(2'-thienyl)ethylamine from suitably functionalized derivatives of 2-(2'-thienyl)ethanol employing ammonia gas in the presence of a metal salt or liquid ammonia and alkyl ketone as a solvent. The 2-(2'-thienyl)ethylamine produced by this process is advantageously converted to ticlopidine.