CAS: 600-14-6; Pentane-2,3-Dione

相似化合物

106675-70-1 4437-51-8 96-04-8

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CAS号123-38-6 丙醛 | CAS号849585-22-4 2-羟基丙酸 | CAS号75-18-3 二甲基硫 | CAS号81609-25-8 1-(dimethylamin... | CAS号110-00-9 呋喃 | CAS号108-24-7 乙酸酐 | CAS号107-87-9 2-戊酮 | CAS号106119-98-6 2-[(E)-[(2Z)-2-... | CAS号32818-79-4 戊烷-2,3-二酮 2-肟 | CAS号540-88-5 醋酸叔丁酯 | CAS号107-71-1 过氧化乙酸叔丁酯 | CAS号20487-40-5 丙酸叔丁酯 | CAS号14206-05-4 Propaneperoxoic... | CAS号75-65-0 叔丁醇 | CAS号18667-57-7 [(Z)-[(2E)-2-(c... | CAS号191854-09-8 3a-ethyl-6a-met... | CAS号67-51-6 3,5-二甲基吡唑

3-氯-3-(乙硫基)-2-戊酮置于水,Sodium Carbonate,Mercury Dichloride体系中,用 二氯甲烷 作为反应溶剂,化学反应 18.0H,反应生成 2,3-戊二酮
参考文献:α-二酮,α,α-二烷氧基酮和α-烷氧基-α-亚磺酰基化酮的区域专一性合成
标题:α-二酮,α,α-二烷氧基酮和α-烷氧基-α-亚磺酰基化酮的区域专一性合成
摘要:通过汞诱导的区域特异性形成的α-氯代-α-(烷硫基)酮的溶剂化反应,开发了一种方便的合成α-二酮及其单保护缩醛,即α-酮缩醛的方法.类似地,当α-氯-α-亚磺酰基化的酮与碱性醇介质反应时,形成α-烷氧基-α-亚磺酰基化的酮.α-烷氧基-α-亚磺酰化的酮本身可以转化为α-二酮或α-酮缩醛,然后在无水条件下将其水解为相应的α-二酮.
DOI:10.1016/s0040-4020(00)00604-9

专利信息

专利号:US-7141702-B2
优先权日:2004-03-26
标 题 :Process for the synthesis of α-substituted acroleins
发明人：DESHPANDE RAJ M; DIWAKAR MAKARAND M; CHAUDHARI RAGHUNATH V
权利人:COUNCIL SCIENT IND RES
摘要:The present invention provides an improved process for the synthesis of α-substituted acroleins from olefins by a tandem hydroformylation and Mannich reaction sequence in the presence of syngas and formaldehyde, wherein the two catalysts are segregated into two different phases thereby preventing deactivation of the catalysts by each other, and yielding a highly selective and active catalyst.

专利号:WO-2005063668-A1
优先权日:2003-12-31
标题 :Process for synthesis of alpha-substituted acroleins
发明人：DESHPANDE RAJ MADHUKAR; DIWAKAR MAKARAND MADHUKAR; CHAUDHARI RAGHUNATH VITTHAL
权利人:COUNCIL SCIENT IND RES
摘要:The present invention provides an improved process for the synthesis of α-substituted acroleins from olefins by a tandem hydroformylation and Mannich reaction sequence in the presence of syngas and formaldehyde, wherein the two catalysts are segregated into two different phases thereby preventing deactivation of the catalysts by each other, and yielding a highly selective and active catalyst.

专利号:US-9802893-B2
优先权日:2012-09-14
标 题:Methods of producing molindone and its salts
发明人：HANBAUER MARTIN; NAZIR ZARGHUN; HILDEBRAND PETER; FIGINI ATTILIA; LIANG LIKAN; FUMAGALLI TIZIANO
权利人:SUPERNUS PHARMACEUTICALS INC
摘要:The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.

专利号:WO-2023025819-A1
优先权日:2021-08-26
标 题:Valorisation of l-lactic acid stream in the production process of d-polylactic acid
发明人：COSZACH PHILIPPE; VAN GANSBERGHE MARTIN
权利人:FUTERRO SA
摘要:The present invention discloses a valorisation method of a flux containing undesired L-lactic acid (ester(s)) in the production process of D-polylactic acid, the production thereof comprising: oligomerisation (30) of a substantially pure D-lactic acid feed; cyclisation (40) of the lactic acid oligomers, thereby obtaining lactides and a first residual stream transferred, at least partially, to a transesterification (80) and a hydrolysis (90) step; lactide purification (50), thereby obtaining purified lactides comprising D-lactide and meso-lactide, a second and a third residual stream, wherein the second residual stream is transferred, at least partially, to the oligomerisation (30) step and the third residual stream is transferred, at least partially, to a transesterification (80) and a hydrolysis step (90); polymerisation (60) of the purified lactides into polylactic acid; purification (70) of the polylactic acid, thereby obtaining purified polylactic acid comprising substantially D-polylactic acid and unreacted D- lactide, unreacted meso-lactide and impurities transferred, at least partially, to the lactide purification step (50); transesterification (80) and hydrolysis (90) of the at least partially transferred first and third residual streams, thereby obtaining a fourth and a fifth residual stream which are used, at least partially, as a base for the synthesis of molecules insensitive to the optical isometry D or L of lactic acid (esters).

专利号:US-2024368343-A1
优先权日:2021-08-26
标题:Valorisation of d-lactic acid stream in the production process of l-polylactic acid
发明人：COSZACH PHILIPPE; VAN GANSBERGHE MARTIN
权利人:FUTERRO SA
摘要:The present invention discloses a valorization method of a flux containing undesired D-lactic acid (ester(s)) in the production process of L-polylactic acid, the production thereof comprising: oligomerisation (30) of a substantially pure L-lactic acid feed; cyclisation (40) of the lactic acid oligomers, thereby obtaining lactides and a first residual stream transferred, at least partially, to a transesterification (80) and a hydrolysis (90) step; lactide purification (50), thereby obtaining purified lactides comprising L-lactide and meso-lactide, a second and a third residual stream, wherein the second residual stream is transferred, at least partially, to the oligomerisation (30) step and the third residual stream is transferred, at least partially, to a transesterification (80) and a hydrolysis step (90); polymerisation (60) of the purified lactides into poly lactic acid; purification (70) of the poly lactic acid, thereby obtaining purified polylactic acid comprising substantially L-polylactic acid and unreacted L-lactide, unreacted meso-lactide and impurities transferred, at least partially, to the lactide purification step (50); transesterification (80) and hydrolysis (90) of the at least partially transferred first and third residual streams, thereby obtaining a fourth and a fifth residual stream which are used, at least partially, as a base for the synthesis of molecules insensitive to the optical isometry D or L of lactic acid (esters).

专利号:US-9944869-B2
优先权日:2007-03-08
标 题 :Synthesis of liquid fuels and chemicals from oxygenated hydrocarbons
发明人：CORTRIGHT RANDY D; BLOMMEL PAUL G
权利人:VIRENT INC
摘要:Processes and reactor systems are provided for the conversion of oxygenated hydrocarbons to hydrocarbons, ketones and alcohols useful as liquid fuels, such as gasoline, jet fuel or diesel fuel, and industrial chemicals. The process involves the conversion of mono-oxygenated hydrocarbons to aromatics and gasoline range hydrocarbons where the oxygenated hydrocarbons are derived from biomass.