PROCESS FOR PREPARATION OF CYANOALKYLPROPIONATE DERIVATIVES
    2.
    发明申请
    PROCESS FOR PREPARATION OF CYANOALKYLPROPIONATE DERIVATIVES 审中-公开
    制备氰基丙烯酸酯衍生物的方法

    公开(公告)号:WO2011086570A1

    公开(公告)日:2011-07-21

    申请号:PCT/IN2010/000382

    申请日:2010-06-08

    CPC分类号: C07C253/30 C07C255/19

    摘要: A process for preparation of the compound (I) and salts thereof is provided. The process comprises reacting an alkali cyanide and paraformaldehyde to form a slurry of glycolonitrile followed by neutralizing, mixing the neutralized slurry containing glycolonitrile with an alkali ethoxide and an cyanoacetate to obtain the alkali salt of compound (I), and neutralizing the alkali salt of compound (I) to obtain the compound (I), wherein R represents a straight or branched chain alkyl having C 1 -C 18 carbon atoms.

    摘要翻译: 提供了制备化合物(I)及其盐的方法。 该方法包括使碱金属氰化物和多聚甲醛反应形成乙醇腈的浆液,然后中和,将含有乙醇腈的中和浆与碱金属乙醇盐和氰基乙酸酯混合,得到化合物(I)的碱金属盐,并中和化合物 (I),得到化合物(I),其中R表示具有C1-C18碳原子的直链或支链烷基。

    PROCESS FOR THE PREPARATION OF NITRILE COMPOUNDS
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF NITRILE COMPOUNDS 审中-公开
    制备NITRILE化合物的方法

    公开(公告)号:WO03004459A3

    公开(公告)日:2003-05-01

    申请号:PCT/GB0202964

    申请日:2002-06-27

    摘要: A process is provided for the preparation of a compound of Formula (1) wherein: R is H, optionally substituted acyl, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl: R² and R³ each independently are H or a hydroxy protecting group; comprising the steps: (a) reacting a compound of Formula (2) in a solvent in the presence of a base with a compound of formula R SO2X to give a compound of Formula (3); wherein: R is an optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl group; and X is halogen: and (b) reacting the compound of Formula (3) with a cyanide source in the presence of a phase transfer catalyst.

    摘要翻译: 提供了制备式(1)化合物的方法,其中:R 1是H,任选取代的酰基,任选取代的烷基,任选取代的芳基或任选取代的杂芳基:R 2和R 3各自独立地是H或羟基 保护组 包括以下步骤:(a)使式(2)的化合物在碱的存在下在溶剂中与式R 4 SO 2 X的化合物反应,得到式(3)的化合物; 其中:R 4是任选取代的烷基,任选取代的芳基或任选取代的杂芳基; 和X是卤素;和(b)在相转移催化剂存在下使式(3)的化合物与氰化物源反应。

    MANUFACTURE OF WATER-SOLUBLE β-HYDROXYNITRILES
    5.
    发明申请
    MANUFACTURE OF WATER-SOLUBLE β-HYDROXYNITRILES 审中-公开
    水溶性β羟基硝基的制备

    公开(公告)号:WO2004063144A1

    公开(公告)日:2004-07-29

    申请号:PCT/US2003/039084

    申请日:2003-12-10

    IPC分类号: C07C253/16

    CPC分类号: C07C253/16 C07C255/12

    摘要: A process for making a water-soluble β-hydroxynitrile. A 1,2-epoxide and an inorganic cyanide salt are reacted in a solvent having aqueous methanol and a buffer therein to form β-hydroxynitrile. The buffer substantially inhibits the information of reaction products other than β-hydroxynitrile. Optionally, water may be removed from the β-hydroxynitrile by azeotropic distillation with acetonitrile and subsequently purified via vacuum distillation and filtraton.

    摘要翻译: 制备水溶性β-羟基腈的方法。 1,2-环氧化物和无机氰化物盐在具有甲醇水溶液和缓冲液的溶剂中反应形成β-羟基腈。 缓冲液基本上抑制除β-羟基腈以外的反应产物的信息。 任选地,可以通过与乙腈共沸蒸馏从β-羟基腈除去水,随后通过真空蒸馏和过滤纯化。

    PROCESSES AND COMPOSITIONS FOR THE PRODUCTION OF CHIRAL AMINO-NITRILES
    6.
    发明申请
    PROCESSES AND COMPOSITIONS FOR THE PRODUCTION OF CHIRAL AMINO-NITRILES 审中-公开
    用于生产丙氨腈的方法和组合物

    公开(公告)号:WO2003029190A1

    公开(公告)日:2003-04-10

    申请号:PCT/US2002/030728

    申请日:2002-09-27

    IPC分类号: C07C253/16

    摘要: Processes for the efficient production of chiral amino nitriles are disclosed. Generally, the processes include the esterification of the alcohol of an amino protected alcohol followed by nucleophilic substitution of the ester with a cyano group. In an exemplary embodiment the chiral amino nitrile produced is (R)-3-aminopentanenitrile.

    摘要翻译: 公开了用于有效生产手性氨基腈的方法。 一般来说,这些方法包括将醇与氨基保护的醇酯化,随后用氰基进行亲核取代酯。 在一个示例性实施方案中,产生的手性氨基腈是(R)-3-氨基戊腈。

    PROCESS FOR THE PREPARATION OF NITRILE COMPOUNDS
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF NITRILE COMPOUNDS 审中-公开
    制备腈化合物的方法

    公开(公告)号:WO2003004459A2

    公开(公告)日:2003-01-16

    申请号:PCT/GB2002/002964

    申请日:2002-06-27

    IPC分类号: C07C253/16

    摘要: A process is provided for the preparation of a compound of Formula (1) wherein: R 1 is H, optionally substituted acyl, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl: R² and R³ each independently are H or a hydroxy protecting group; comprising the steps: (a) reacting a compound of Formula (2) in a solvent in the presence of a base with a compound of formula R 4 SO 2 X to give a compound of Formula (3); wherein: R 4 is an optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl group; and X is halogen: and (b) reacting the compound of Formula (3) with a cyanide source in the presence of a phase transfer catalyst.

    摘要翻译: 提供了制备式(1)化合物的方法,其中:R 1为H,任选取代的酰基,任选取代的烷基,任选取代的芳基或任选取代的 取代的杂芳基:R' 和R³ 各自独立地为H或羟基保护基; 包括以下步骤:(a)使式(2)化合物在溶剂中在碱存在下与式R 4 SO 2 X化合物反应,得到 式(3)的化合物; 其中:R 4是任选取代的烷基,任选取代的芳基或任选取代的杂芳基; X是卤素;和(b)使式(3)化合物与氰化物源在相转移催化剂存在下反应。