CAS: 512-69-6; D-(+)-Raffinose

上下游产品

CAS号10257-28-0 D-吡喃葡萄糖 | CAS号57-50-1 蔗糖 | CAS号7493-95-0 4-硝基苯-α-D-吡喃半乳糖苷 | CAS号470-55-3 水苏糖 | CAS号59-23-4 半乳糖 | CAS号104880-42-4 6''-carboxyraffinose | CAS号59-23-4 半乳糖 | CAS号470-55-3 水苏糖 | CAS号526-99-8 黏酸 | CAS号69-65-8 甘露醇 | CAS号50-70-4 山梨醇 | CAS号608-66-2 卫矛醇 | CAS号57-50-1 蔗糖 | CAS号57-48-7 果糖 | CAS号50-99-7 D(+)-无水葡萄糖

在 Palladium On Activated Charcoal,氢气体系中,用 甲醇,乙酸乙酯 作为反应溶剂,化学反应 48.0H,以26 Mg的收率获得产物棉子糖
参考文献:Co 2(co)8 / Et 3 Sih / Co系统的区域选择性脱-O-苄化反应合成棉子糖家族寡糖
标题:Co 2(co)8 / Et 3 Sih / Co系统的区域选择性脱-O-苄化反应合成棉子糖家族寡糖
摘要:提出了一种方便的方法,以蔗糖为原料合成棉子糖,水苏糖和马齿c糖.关键步骤是使用co 2(co)8 / Et 3 Sih / Co系统进行区域选择性脱o-苄基化,然后进行高水平的α-选择性糖基化.新开发的脱-O-苄基化系统可在温和条件下以高选择性高效去除蔗糖和棉子糖的伯苄基.使用硫代糖苷作为供体,Nis / Agotf作为启动子,Dtbmp作为添加剂,酸不稳定蔗糖底物的糖基化可以实现高收率.
DOI:10.1016/j.Tet.2013.03.094

专利信息

专利号:US-9034844-B2
优先权日:2009-04-06
标 题 :6′-sialyllactose salts and process for their synthesis and for the synthesis of other alpha-sialyloligosaccharides
发明人：TAMERLANI GIANCARLO; LOMBARDI ILARIA; BARTALUCCI DEBORA; DANESI ANDREA; SALSINI LIANA; MANONI MARCO; CIPOLLETTI GIOVANNI
权利人:TAMERLANI GIANCARLO; LOMBARDI ILARIA; BARTALUCCI DEBORA; DANESI ANDREA; SALSINI LIANA; MANONI MARCO; CIPOLLETTI GIOVANNI; INALCO SPA
摘要:The present invention relates to a process of synthesis of α-sialyl oligosaccharides and in particular of 6′-sialyllactose and its salts comprising a step of coupling by Koenigs-Knorr reaction under conditions that allow its use on an industrial scale.

专利号:US-5945529-A
优先权日:1996-07-19
标题:Synthesis of polyol fatty acid polyesters using column with inert gas stripping
发明人：CORRIGAN PATRICK JOSEPH; KENNEALLY COREY JAMES; GRANBERG ERIC PAUL
权利人:PROCTER & GAMBLE
摘要:Processes for the synthesis of polyol fatty acid polyester by transesterification of a polyol comprise reacting polyol with a first portion of fatty acid lower alkyl ester to provide a first step reaction product in which substantially all of the polyol is reacted with at least one fatty acid lower alkyl ester. The processes then employ a multistage column providing substantial plug flow of liquid therein for further transesterification of the first step reaction product. Partially esterified polyol, a second portion of fatty acid lower alkyl ester and catalyst are fed to the column to form a mixture and cause further transesterification of the partially esterified polyol and fatty acid lower alkyl ester, with lower alkyl alcohol being formed as a by product. The resulting liquid mixture of reactants and product is passed in a first direction between adjacent stages through the column for further reaction of partially esterified polyol with fatty acid lower alkyl ester. An inert stripping or sparging gas is fed through the column in a second direction between adjacent stages, counter current to the flow of the liquid mixture between adjacent stages in the first direction, with radial shear agitation. The lower alkyl alcohol by-product of the polyol-fatty acid lower alkyl ester reaction is transferred from the liquid mixture to the inert gas.

专利号:US-10973847-B2
优先权日:2017-06-30
标题 :Core-to-surface polymerization for the synthesis of star polymers and uses thereof
发明人：JOHNSON JEREMIAH A; GOLDER MATTHEW R
权利人:MASSACHUSETTS INST TECHNOLOGY
摘要:Disclosed are methods, compositions, reagents, systems, and kits to prepare star polymers, as well as compositions and uses thereof. Various embodiments show that synthesis of these polymers contain low metal concentration to provide polymers for diverse biomedical applications including in vivo applications.

专利号:US-11059835-B2
优先权日:2014-08-15
标 题 :Synthesis of cephalosporin compounds
发明人：WALLER DAVID; GAZDA GREGORY; MINDEN ZACHARY; BARTON LISA; LEIGH CLIFTON
权利人:MERCK SHARP & DOHME
摘要:Provided herein is a method for the synthesis of cephalosporin antibiotic compounds comprising a palladium-catalyzed coupling reaction.

专利号:US-6620952-B1
优先权日:1999-01-28
标题:Synthesis of polyol fatty acid polyesters
发明人：CORRIGAN PATRICK JOSEPH
权利人:PROCTER & GAMBLE
摘要:Processes for the synthesis of polyol fatty acid polyester by transesterification of a polyol comprise reacting polyol with a first portion of fatty acid lower alkyl ester to provide a first step reaction product in which substantially all of the polyol is reacted with at least one fatty acid lower alkyl ester. The process then employs a multistage column for further transesterification of the first step reaction product. Partially esterified polyol, a second portion of fatty acid lower alkyl ester and catalyst are fed to the column to form a mixture and cause further transesterification of the partially esterified polyol and fatty acid lower alkyl ester, with lower alkyl alcohol being formed as a by product. The resulting liquid mixture of reactants and product is passed in a first direction between adjacent stages through the column for further reaction of partially esterified polyol with fatty acid lower alkyl ester. An inert sparging gas is fed through the column in a second direction between adjacent stages, counter current to the flow of the liquid mixture between adjacent stages in the first direction. The inert gas is directed through the liquid mixture to provide gas induce turbulence, such that the column reactor has a column ratio of at least 0.4/hour.

专利号:US-9447149-B2
优先权日:2012-03-06
标 题 :Methods and compositions for the rapid synthesis of radiometal-labeled probes
发明人：CHEN KAI; CONTI PETER STEPHEN
权利人:UNIV SOUTHERN CALIFORNIA
摘要:The present application is directed to rapid and efficient synthesis of radiometal-labeled probes, pharmaceutical compositions comprising radiometal-labeled probes, and methods of using the radiometal-labeled probes. Such radiometal-labeled probes can be used in imaging studies, such as Positron Emitting Tomography (PET) or Single Photon Emission Computed Tomography (SPECT), and therapy studies.