Cyclic acetals of glutamic acid-.gamma.-semialdehyde, process for their
production and use
    91.
    发明授权
    Cyclic acetals of glutamic acid-.gamma.-semialdehyde, process for their production and use 失效
    谷氨酸-γ-甲醛的环状缩醛,其生产和使用过程

    公开(公告)号:US4376864A

    公开(公告)日:1983-03-15

    申请号:US320131

    申请日:1981-11-10

    CPC classification number: C07D207/16 C07D317/30 C07D319/06

    Abstract: The invention is directed to cyclic acetals of glutamic acid-.gamma.-semialdehyde of the formula ##STR1## in which A is an unsubstituted alkylene group having 2 to 3 carbon atoms or such an alkylene group substituted by 1 to 2 methyl groups and to a method of producing a compound of formula (I) by reaction of a compound of the general formula ##STR2## in which A is as defined above with hydrogen cyanide or a cyanide ion supplying compound, ammonia or an ammonium ion supplying compound and carbon dioxide or a carbonate ion supplying compound and basic hydrolysis of the reaction mixture obtained and to using the compound of formula (I) to produce D,L-proline.

    Abstract translation: 本发明涉及式(I)的谷氨酸-γ-甲醛的环状缩醛,其中A为未取代的具有2至3个碳原子的亚烷基或亚烷基被1至2个甲基取代, 涉及制备式(I)化合物的方法,其中通式为其中A定义如上所定义的化合物与氰化氢或氰化物离子供应化合物反应,提供氨或铵离子 化合物和二氧化碳或碳酸根离子供应化合物和所得反应混合物的碱性水解和使用式(I)化合物产生D,L-脯氨酸。

    Process for the production of tryptophane-hydantoin
    92.
    发明授权
    Process for the production of tryptophane-hydantoin 失效
    生产色氨酸 - 乙内酰脲的方法

    公开(公告)号:US4374995A

    公开(公告)日:1983-02-22

    申请号:US320128

    申请日:1981-11-10

    CPC classification number: C07D209/20

    Abstract: Tryptophane hydantoin is prepared by(a) reacting a compound of the general formula ##STR1## where A is an alkylene group having 2 or 3 carbon atoms or such an alkylene group substituted by 1 to 2 methyl groups in aqueous or aqueous alcoholic solution with hydrogen cyanide or a cyanide ion supplying compound, ammonia or an ammonium ion supplying compound and carbon dioxide or a carbonate ion supplying compound and(b) reacting the reaction mixture obtained with phenyl hydrazine at a pH between 0.1 and 4.

    Abstract translation: 色氨酸乙内酰脲通过以下方法制备:(a)使具有2或3个碳原子的亚烷基或其中1至2个甲基取代的亚烷基的通式为(IMA)的化合物(I)与含水或含水醇 用氰化氢或氰化物离子供给化合物,氨或铵离子供给化合物和二氧化碳或碳酸根离子供给化合物的溶液,和(b)使得到的反应混合物与苯肼在0.1至4的pH下反应。

    2-[2'-(Hydanto-5-yl)-ethyl]-5,5-dimethyl-1,3-dioxane
    94.
    发明授权
    2-[2'-(Hydanto-5-yl)-ethyl]-5,5-dimethyl-1,3-dioxane 失效
    2- [2' - (羟乙基-5-基) - 乙基] -5,5-二甲基-1,3-二恶烷

    公开(公告)号:US4342874A

    公开(公告)日:1982-08-03

    申请号:US320130

    申请日:1981-11-10

    CPC classification number: C07D209/20

    Abstract: The invention is directed to 2-[2'-(hydanto-5-yl)-ethyl]-5,5-dimethyl-1,3-dioxane of the formula ##STR1## its production by reaction of 2-(2'-formylethyl)-5,5-dimethyl-1,3-dioxane with hydrogen cyanide or a cyanide ion supplying compound, ammonia, or an ammonium ion supplying compound and carbon dioxide or a carbonate ion supplying compound in aqueous alcoholic solution and its use for the production of tryptophane-hydantoin.

    Abstract translation: 本发明涉及式(I)的2- [2' - (乙烷基-5-基) - 乙基] -5,5-二甲基-1,3-二恶烷,其通过2-( 2'-甲酰基乙基)-5,5-二甲基-1,3-二恶烷与氰化氢或氰化物离子供应化合物,氨或铵离子供应化合物和二氧化碳或碳酸根离子供应化合物在含水醇溶液中 用于生产色氨酸 - 乙内酰脲。

    Process for the production of alpha-ketocarboxylic acid amides and
cycloaliphatic products
    97.
    发明授权
    Process for the production of alpha-ketocarboxylic acid amides and cycloaliphatic products 失效
    制备α-酮羧酸酰胺和脂环族产物的方法

    公开(公告)号:US4161491A

    公开(公告)日:1979-07-17

    申请号:US802903

    申请日:1977-06-02

    CPC classification number: C07C231/06

    Abstract: There are prepared .alpha.-ketocarboxylic acid amides of the formula ##STR1## where R is hydrogen, R.sub.1 and R.sub.2 are the same or different, R.sub.1 is alkyl of 1 to 18 carbon atoms or haloalkyl, preferably chloroalkyl, of 1 to 18 carbon atoms, and R.sub.2 is hydrogen, alkyl of 1 to 18 carbon atoms or haloalkyl, preferably chloroalkyl, of 1 to 18 carbon atoms or ##STR2## together is a cycloalkyl group of 3 to 8 carbon atoms which can be substituted by one or more 1 to 5 carbon atom alkyl groups or by one or more halogen atoms, preferably chlorine atoms, with the proviso that when ##STR3## form a cycloalkyl group then R can also be alkyl of 1 to 5 carbon atoms. The process comprises saponifying an acyl cyanide of the formula ##STR4## in which R, R.sub.1 and R.sub.2 are as defined above in an organic solvent or mixture of such solvents which is liquid and inert under the reaction conditions, first with gaseous hydrogen chloride and then treating with water at a temperature of about -70.degree. C. to about +70.degree. C. and then isolating the .alpha.-ketocarboxylic acid amide in conventional manner. Several of the cyclic .alpha.-ketocarboxylic acid amides are new compounds.

    Abstract translation: 制备式(I)的α-酮羧酸酰胺,其中R是氢,R 1和R 2相同或不同,R 1是1至18个碳原子的烷基或卤代烷基,优选氯代烷基,其为1至18 碳原子,R 2是氢,1至18个碳原子的烷基或具有1至18个碳原子的卤代烷基,优选氯代烷基,或者“IMAGE”是3-8个碳原子的环烷基,其可以被一个或多个 1至5个碳原子的烷基或一个或多个卤素原子,优选氯原子,条件是当形成环烷基时,则R也可以是1至5个碳原子的烷基。 该方法包括在其中R 1,R 2和R 2如上所定义的式(Ⅶ)的酰基氰在有机溶剂或这种在反应条件下为液体和惰性的溶剂的混合物中,首先用气态氢 然后在约-70℃至约+70℃的温度下用水处理,然后以常规方式分离α-酮羧酸酰胺。 几种环状α-酮羧酸酰胺是新的化合物。

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