CAS: 105-60-2; Azepan-2-One

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33241-96-2 106412-36-6 5936-73-2

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Dl-赖氨酸置于aluminum Oxide,氢气体系中,用 甲醇,正丁醇 用作溶剂,250.0 °C,2.0 Mpa 条件下,反应 10.0H,反应生成己内酰胺
参考文献:一种己内酰胺的制备方法
标题:一种己内酰胺的制备方法
摘要:本发明提供了一种己内酰胺的制备方法.该方法以赖氨酸或α‑氨基‑ε‑己内酰胺及其盐,α‑(N,N‑二甲基氨基)‑ε‑己内酰胺及其盐为反应原料,以酸性载体担载的过渡金属为催化剂,以甲醇用作溶剂,在150‑300°C,氢气压力1‑12Mpa的条件下经过一步催化转化,实现由生物质来源的赖氨酸等原料生产己内酰胺的过程.本发明反应过程简单,原料赖氨酸和α‑氨基‑ε‑己内酰胺及其盐,α‑(N,N‑二甲基氨基)‑ε‑己内酰胺及其盐均可来源于生物质,具有绿色环保,可再生等优点.使用负载型的催化剂易于分离,酸性载体负载的过渡金属催化剂在反应过程中不易流失.

专利信息

专利号:US-2014194584-A1
优先权日:2013-01-07
标题 :Process for the synthesis of w-Unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively swing process
发明人：DUBOIS JEAN-LUC; COUTURIER JEAN-LUC
权利人:ARKEMA FRANCE
摘要:The invention relates to a process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I comprising at least one trivalent nitrile, acid or ester functional group, characterized in that it comprises a stage in which two types of cross metathesis are alternated consecutively:n a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II comprising a nitrile functional group and the other of these compounds II or I comprising an acid or ester functional group, and a second type of cross metathesis cm2 with a light C 2 to C 4 alkene compound III, preferably with ethylene. nn The invention also relates to a process for the synthesis of an α,ω-amino ester (acid) obtained by a process comprising a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.

专利号:WO-9961509-B1
优先权日:1998-05-21
标题:Synthesis of semi-crystalline polyphthalamides through reactive extrusion of hexamethylene terephthalamide oligomer with lower melting, semi-crystalline or amorphous polyamides
发明人：LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
权利人:LEBOEUF CHRISTIAN; HARBOURNE DAVID ALAN
摘要:This invention relates to the synthesis of semi-crystalline polyphthalamides (i.e. containing monomeric units of terephthalic acid and hexamethylene diamine) through reactive extrusion of hexamethylene terephthalamide oligomer, or the oligomer of another 6T-rich copolymer, with lower melting semi-crystalline or amorphous polyamides. This process is particularly useful since it is centered around the use of stirred autoclaves for the synthesis of the 6T oligomer and the semi-crystalline or amorphous polyamides which are subsequently combined in a twin screw extruder equipped for devolatilization of water of reaction. It can also be used for the modification of existing semi-crystalline or amorphous polyamides (not necessarily phthalamides) with low levels of 6T.

专利号:WO-9407900-A1
优先权日:1992-09-25
标 题 :Synthesis of n-glycosylated compounds with the use of a mild, iodine-catalyzed reaction
发明人：KOREEDA MASATO; HOUSTON TODD A
权利人:UNIV MICHIGAN
摘要:The invention concerns N-glycosylated derivatives of nitrogen nucleophile compounds. The invention also concerns a mild, cost effective, stereoselective, regioselective, and generally applicable method for the preparation of N-glycosides by N-glycosylation of azide and amide nucleophile compounds. The method employs iodine in a catalytic amount that uniquely does not pose an environmental hazard. The invention provides efficient access to key intermediates for the synthesis inter alia of analogs of AZT and DDI and for the synthesis of conventional N-nucleoside antibiotic drugs and their novel N-glycosylated analogs.

专利号:US-6063919-A
优先权日:1998-08-14
标题:Process for the synthesis of exochelins
发明人：GAUDIOSO LARRY A; WEGLARZ MICHAEL A
权利人:KEYSTONE BIOMEDICAL INC
摘要:A process for the synthesis of an Exochelin comprising the steps of generating L-N-[(2-benzyloxy-(benzoyl)] serine or L-N-[2-benzyloxy (benzoyl)] threonine, creating L-N-t-Boc- epsilon -hydroxynorleucine and reacting same to produce L-N-Boc- epsilon -bromonorleucine trimethylsilylethyl ester, providing a dicarboxylic acid and forming an O-benzyl methyl hydroxamate from the dicarboxylic acid, coupling the O-benzyl methyl hydroxamate with the L-N-Boc- epsilon -bromonorleucine trimethylsilylethyl ester to give an L-N2-Boc-N6-methyl,N6-(benzyloxy) lysine 2-trimethylsilylethyl ester which incorporates the dicarboxylic acid as modified above, removing the N-tert-butoxycarbonyl protecting group from the L-N2-Boc-N6-methyl, N6-(benzyloxy) lysine 2-trimethylsilylethyl ester to yield a substituted lysine, and coupling the same with the L-N-[2-benzyloxy (benzoyl) serine or -threonine to yield a 2-trimethyl silylethyl ester of dibenzyl Exochelic acid, transforming the 2-trimethyl silylethyl ester of dibenzyl Exochelic acid to dibenzyl Exochelic acid, preparing benzyl epi-cobactin, forming an ester bond between the dibenzyl Exochelic acid and benzyl epi-cobactin to form an intermediate, and, hydrogenolytically removing three benzyl groups from said intermediate, resulting in the synthesized Exochelin. More particularly, a synthesis for Exochelin 786SM (R) is disclosed wherein the dicarboxylic acid is suberic acid and the serine form is utilized.

专利号:US-2004249114-A1
优先权日:2001-02-06
标题 :Methods of synthesis of polysuccinimide or polyaspartate by end capping polymerization
发明人：SWIFT GRAHAM; REDLICH GEORGE H; WEHBY JOHN NOLAN
摘要:Disclosed are methods of synthesis of homopolymers or copolymers containing succinimide or aspartate moieties formed in the presence of an end capping initiator. Also disclosed are methods of isolating, compounding, stabilizing and processing the homopolymers and copolymers.

专利号:US-11618732-B2
优先权日:2019-12-11
标 题 :Process for the synthesis of n-substituted lactams and amides
发明人：ZHANG XIAWEI; SCHUTTER JR ROBERT; TANG LIHAO; KEENAN SCOTT; LI XIN
权利人:ADVANSIX RESINS & CHEMICALS LLC; AdvanSix Resins & Chemical LLC
摘要:A process for the synthesis of N-alkylated lactams via reductive alkylation. The process of the present disclosure may be conducted by the addition of an aldehyde to a lactam in the presence of a catalyst under a reducing atmosphere.