CAS: 372-09-8; Cyanoacetic Acid

上下游产品

hydroxyimino-succinic acid 2-cyano-3-amino-3-phenyl acrylic acid ethyl ester sodium ethanolate potassium cyanidecyano-cyclohex-1-enyl-acetic acid 2-cyano-3-(4-methoxyphenyl)acrylic acid cinnamic nitrile (Z)-cinnamonitrile

Sodium Cyanoacetate置于1H-苯并咪唑-2-硫醇,盐酸体系中,用 水 用作溶剂,以99.4 %的收率获得氰乙酸
参考文献:一种氰乙酸的制备方法
标题:一种氰乙酸的制备方法
摘要:本发明提供一种氰乙酸的制备方法,所述制备方法包括如下步骤:(1)将含巯基化合物与氰乙酸钠混合,进行预处理,得到预处理液;(2)将步骤(1)得到的预处理液与酸性物质进行酸化反应,得到氰乙酸配合物;所述氰乙酸配合物分解,得到所述氰乙酸.含巯基化合物中的巯基为亲核供体,可以和底物氰乙酸钠中的氰基形成共价键,起到保护氰基的作用,使反应生成的氰乙酸在后续脱水过程中不易分解,有助于提高氰乙酸的收率;同时,该物质不与水互溶,加入后可减少氯化钠对氰乙酸的包裹,既提高了氯化钠的纯度,又提高了氰乙酸的收率.

专利信息

专利号:US-2008287649-A1
优先权日:2006-12-29
标 题 :Methods for the synthesis of cyclic peptides
发明人：CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
权利人:CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
摘要:Methods for the synthesis of cyclic peptides are provided, as well as novel dipeptide compounds. The methods include the solid phase synthesis of a dipeptide, which is the coupled to a second peptide in a solid phase reaction. The peptide is then cyclized following the coupling reaction. The methods and dipeptides are particularly useful for the synthesis of MC-4 receptor agonist peptides.

专利号:US-7479569-B2
优先权日:2004-02-13
标题:Process for the synthesis of (7-methoxy-3,4-dihydro-1-naphthalenyl) acetonitrile and its application in the synthesis of agomelatine
发明人：SOUVIE JEAN-CLAUDE; GONZALEZ BLANCO ISAAC
权利人:SERVIER LAB
摘要:A process for the industrial synthesis of the compound of formula (I) n nApplication in the synthesis of agomelatine.

专利号:US-6376676-B1
优先权日:1993-06-30
标题 :Intermediates in the synthesis of (±)-camptothecin and related compounds and synthesis thereof
发明人：CURRAN DENNIS P; LIU HUI
权利人:UNIV PITTSBURGH
摘要:The present invention provides a short, convergent total synthesis of novel intermediates in the synthesis of (±)-camptothecin and related compounds. The present synthesis scheme includes a novel 4+1 radical annulation followed by another cyclization to simultaneously assemble rings B and C of the camptothecin compound. The present invention also provides novel chemical intermediates for such 4+1 radical annulations.

专利号:US-7999129-B2
优先权日:2004-02-13
标 题:Process for the synthesis of (7-methoxy-1-naphthyl) acetonitrile and its application in the synthesis of agomelatine
发明人：SOUVIE JEAN-CLAUDE; BLANCO ISAAC GONZALEZ
权利人:SERVIER LAB
摘要:A process for the industrial synthesis of the compound of formula (I) n nApplication in the synthesis of agomelatine.

专利号:US-6136984-A
优先权日:1996-04-22
标 题 :Solid phase and combinatorial synthesis of substituted thiophenes and of arrays of substituted thiophenes
发明人：DOERWALD FLORENCIO ZARAGOZA
权利人:NOVO NORDISK AS
摘要:A solid phase method for the synthesis of a plurality of differently substituted thiophenes with a wide variety of side-chain substituents as compounds of potential therapeutic interest is disclosed. The thiophenes are prepared by acylation of a substrate-bound primary or secondary amine with cyanoacetic acid and reaction of the resulting cyanoacetamide with an isothiocyanate in the presence of a base. Alkylation with an appropriate alkyl halide, followed by Thorpe-Ziegier-cyclization yields differently substituted, support-bound 3-aminothiophenes. These may be screened on the substrate or cleaved from the substrate and then screened in solution. Alternatively, the resin-bound 3-amino thiophenes or the synthetic intermediates can be subjected to further synthetic transformations (N-acylation, reduction) on the support, which permits the preparation of further therapeutically interesting compounds. The efficient synthesis of a wide variety of thiophenes using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse thiophene-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.

专利号:US-5847150-A
优先权日:1996-04-24
标题 :Solid phase and combinatorial synthesis of substituted 2-methylene-2, 3-dihydrothiazoles and of arrays of substituted 2-methylene-2, 3-dihydrothiazoles
发明人：DORWALD FLORENCIO ZARAGOZA
权利人:NOVO NORDISK AS
摘要:A solid phase method for the synthesis of a plurality of differently substituted 2-methylenethiazoles with a wide variety of side-chain substituents as compounds of potential therapeutic interest. The 2-methylenethiazoles are prepared by acylation of a substrate-bound primary or secondary amine with cyanoacetic acid and reaction of the resulting cyanoacetamide with an isothiocyanate in the presence of a base. Alkylation with an appropriate alkyl halide under acidic conditions yields differently substituted, support-bound 2-methylene-2,3-dihydrothiazoles. These may be screened on the substrate or cleaved from the substrate and then screened in solution. The efficient synthesis of a wide variety of 2-methylenethiazoles using automated synthesis technology of the present method makes these compounds attractive candidates for the generation and rapid screening of diverse thiazole-based libraries. The method disclosed here provides an easy and fast access to highly diverse heterocyclic compounds of therapeutic interest, amenable to automatization.