CAS: 2363-71-5; Henicosanoic Acid

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tricosan-2-one 5-oxo-heneicosanoic acid 1-diazo-2-oxoheneicosane 5-oxo-heneicosanoic acid methylamideethyl heneicosanoate methyl heneicosanoate 2-Hydroxy-5-methoxy-4-methyl-heneicosanophenon 2-hydroxy-5-heneicosanoyloxy-4-methyl-heneicosanophenon

📜1-Heneicosanenitrile置于硫酸,水体系中,化学反应 8.0H,以68%的收率获得二十一碳酸
参考文献:位置异构的有机胶凝剂:结构-凝胶研究,外消旋对映体胶和溶剂化作用
标题:位置异构的有机胶凝剂:结构-凝胶研究,外消旋对映体胶和溶剂化作用
摘要:设计了由脂肪酸,氨基酸(苯甘氨酸)和ω-氨基脂肪族酸单元组成的低分子量胶凝剂分子.通过分别改变描述符m和n所定义的脂族和ω-氨基脂族酸链中亚甲基单元的数目,获得了一系列位置异构体胶凝剂,它们在胶凝剂分子中的肽氢键合单元的位置不同.位置异构体的胶凝特性已针对一组定义的二十种不同结构和极性的溶剂进行了测定,并根据胶凝剂的多功能性(g Ver)和有效性(g Eff)进行了分析.).凝胶试验的结果表明,通过改变m和n,端基极性(羧酸对羧酸钠)和立体化学(外消旋体对光学纯形式)的简单合成优化,"铅凝胶剂分子"就可以鉴定出大大提高了通用性(g Ver)和有效性(g Eff)的胶凝剂.在某些胶凝剂的纯外消旋体/对映异构体对之间,可以观测到高达70倍的g Eff值显着差异,甚至在非常相似的溶剂(如二甲苯异构体)的胶凝中也能表现出这种差异.光谱的综合结果(11 H NMR,Ftir),电子显微镜(tem)和
Doi:10.1002/chem.200902342

专利信息

专利号:US-4451565-A
优先权日:1981-03-10
标 题:Enzyme-mediated synthesis of esters and lactones
发明人：GATFIELD IAN; SAND THEODOR
权利人:HAARMANN & REIMER GMBH
摘要:In the enzyme-mediated synthesis of an ester or lactone from at least one carboxylic acid of the formula R-CH2-CH2-COOH wherein R is a hydrogen atom, or a hydrocarbon radical which has 1 to 21 carbon atoms and which can be optionally substituted by hydroxyl groups or alkoxy groups with 1 to 10 carbon atoms, with at least one primary or secondary alcohol having 1 to 15 carbon atoms, the improvement which comprises employing as the enzyme the esterase from Mucor miehei and effecting the synthesis in the absence of water. Advantageously, the synthesis is effected at about room temperature, the mol ratio of carboxylic acid to alcohol is from about 1:1 to 1:1.1, and the enzyme is used in a quantity of about 3 to 20% by weight of the carboxylic acid. The absence of water facilitates recovery, as by distillation.

专利号:US-9643915-B2
优先权日:2013-03-15
标题:Methods for the synthesis of sphingomyelins and dihydrosphingomyelins
发明人：ONICIU DANIELA CARMEN; HECKHOFF STEFAN; OSWALD BENOIT; REBMANN PETER; PEER ANDREAS; GONZALEZ MIGUEL; SAUTER PATRIK
权利人:CERENIS THERAPEUTICS HOLDING SA
摘要:The present invention includes methods for the synthesis of sphingomyelins and dihydrosphingomyelins. The present invention also includes methods for the synthesis of sphingosines and dihydrosphingosines. The present invention further includes methods for the synthesis of ceramides and dihydroceramides.

专利号:US-9708354-B2
优先权日:2013-03-15
标 题:Methods for the synthesis of sphingomyelins and dihydrosphingomyelins
发明人：ONICIU DANIELA CARMEN; HECKHOFF STEFAN; OSWALD BENOIT; REBMANN PETER; PEER ANDREAS; GONZALEZ MIGUEL; SAUTER PATRIK
权利人:CERENIS THERAPEUTICS HOLDING SA
摘要:The present invention includes methods for the synthesis of sphingomyelins and dihydrosphingomyelins. The present invention also includes methods for the synthesis of sphingosines and dihydrosphingosines. The present invention further includes methods for the synthesis of ceramides and dihydroceramides.

专利号:US-12018313-B2
优先权日:2016-12-28
标题:Methods, apparatuses, and systems for microorganism strain analysis of complex heterogeneous communities with tracer analytics, determination of functional relationships and interactions thereof, and synthesis of microbial ensembles
发明人：EMBREE MALLORY
权利人:NATIVE MICROBIALS INC
摘要:Methods, apparatuses, and systems for microorganism strain analysis of complex heterogeneous communities with tracer analytics, determination of functional relationships and interactions thereof, and synthesis of microbial ensembles, including dosed microbial ensembles and inoculative microbial ensembles, are disclosed.

专利号:US-8647848-B2
优先权日:2008-06-13
标题:Enzymatic synthesis of sphingolipids
发明人：HOLLMANN FRANK; THUM OLIVER; TOELLE CHRISTOPH; PROVINZANO ANGELO; KOREVAAR CORNELIS GERRIT NIJS
权利人:HOLLMANN FRANK; THUM OLIVER; TOELLE CHRISTOPH; PROVINZANO ANGELO; KOREVAAR CORNELIS GERRIT NIJS; EVONIK GOLDSCHMIDT GMBH
摘要:The invention relates to the enzymatic synthesis of sphingolipids and compositions that contain sphingolipids from lysosphingolipids and carbonic esters, and to cosmetic, dermatological or pharmaceutical formulations containing said sphingolipids or compositions.

专利号:US-11583842-B2
优先权日:2019-07-24
标题 :Zwitterionic catalysts for (trans)esterification: application in fluoroindole-derivatives and biodiesel synthesis
发明人：YEUNG YING-YEUNG; LAM YING-PONG; KE ZHIHAI; WANG XINYAN; TAN FEI; NG WING-HIN; TSE YING-LUNG STEVE
权利人:UNIV HONG KONG CHINESE
摘要:An amide/iminium zwitterion catalyst has a catalyst pocket size that promotes transesterification and dehydrative esterification. The amide/iminium zwitterions are easily prepared by reacting aziridines with aminopyridines. The reaction can be applied a wide variety of esterification processes including the large-scale synthesis of biodiesel. The amide/iminium zwitterions allow the avoidance of strongly basic or acidic condition and avoidance of metal contamination in the products. Reactions are carried out at ambient or only modestly elevated temperatures. The amide/iminium zwitterion catalyst is easily recycled and reactions proceed in high to quantitative yields.