Process of making penicillamine
    1.
    发明授权
    Process of making penicillamine 失效
    制作青霉胺的过程

    公开(公告)号:US4061674A

    公开(公告)日:1977-12-06

    申请号:US657605

    申请日:1976-02-12

    IPC分类号: C07D277/06 C07C99/00

    CPC分类号: C07D277/06

    摘要: Penicillamine or a homolog thereof is obtained by reacting a 2-disubstituted-5,5-alkyl-thiazolidine nitrile, alkyl having 1 to 6 carbon atoms, with a mineral acid in a two-stage proceeding wherein in the first stage relatively low temperatures and a relatively high concentration of the mineral acid are employed while in the second stage the concentration of the acid is relatively low and the temperatures are relatively high, the term "relatively" referring to the relationship of said two stages of the reaction with mineral acid.

    摘要翻译: 青霉胺或其同系物是通过2-二取代-5,5-烷基 - 噻唑烷腈,具有1至6个碳原子的烷基与无机酸反应得到的,其中在两阶段进行,其中在第一阶段相对低的温度和 使用相对高浓度的无机酸,而在第二阶段酸的浓度相对较低并且温度相对较高,术语“相对”是指反应两个阶段与无机酸的关系。

    Process for the production of thiazolines-(3)
    2.
    发明授权
    Process for the production of thiazolines-(3) 失效
    生产噻唑啉的方法 - (3)

    公开(公告)号:US3931208A

    公开(公告)日:1976-01-06

    申请号:US413048

    申请日:1973-11-05

    IPC分类号: C07D277/10 C07D277/60

    CPC分类号: C07D277/60 C07D277/10

    摘要: 2 AND 5 SUBSTITUTED THIAZOLINE-(3) COMPOUNDS OF THE FORMULA: ##EQU1## in which R.sub.1, R.sub.2, and R.sub.3 and R.sub.4 are the same or different, R.sub.1 and R.sub.2 are straight or branched chain lower alkyl, alkenyl or aralkyl groups or together are a straight or branched chain alkylene or ethylenically unsaturated divalent aliphatic hydrocarbon group which joins with the adjacent carbon atom to form a ring and R.sub.3 and R.sub.4 are similarly defined except R.sub.3 can also be hydrogen by reaching a 2,2' dioxodisulfide of the formula ##EQU2## with an oxo compound of the formula ##EQU3## and with ammonia and hydrogen sulfide in the presence of an amine and an ammonium salt.

    摘要翻译: 2和5取代的噻唑啉 - (3)式的化合物:其中R 1,R 2和R 3和R 4相同或不同,R 1和R 2是直链的 或支链低级烷基,烯基或芳烷基或一起是与相邻碳原子连接以形成环的直链或支链亚烷基或烯键式不饱和二价脂族烃基,并且R 3和R 4类似地定义,除了R 3也可以是氢 通过到达式OO C的二氧杂二硫化物。方法C将C 1 -C 6(C 1 -C 6)环烷基(R 2)R 2 R 2与式R 3的氧代化合物反应。 和氨和硫化氢在胺和铵盐的存在下反应。

    Process for the purification of tryptophane and derivatives of
tryptophane
    5.
    发明授权
    Process for the purification of tryptophane and derivatives of tryptophane 失效
    色氨酸和色氨酸衍生物的纯化方法

    公开(公告)号:US4283337A

    公开(公告)日:1981-08-11

    申请号:US94801

    申请日:1979-11-15

    IPC分类号: C07D209/20

    CPC分类号: C07D209/20

    摘要: Tryptophane and tryptophane derivatives are purified by treating them in an inert solvent at a temperature between about 20.degree. C. and the boiling point of the mixture with a salt of dithionous acid. Preferably there is used as solvent a mixture of water and a lower aliphatic carboxylic acid. Normally a single treatment results in a pure, colorless, satisfactory product.

    摘要翻译: 色氨酸和色氨酸衍生物通过在惰性溶剂中在约20℃和混合物与二硫酸盐的沸点之间的温度下处理来纯化。 优选地,作为溶剂使用水和低级脂肪族羧酸的混合物。 通常单次处理会产生纯净,无色,令人满意的产品。

    N-Substituted .alpha.-ketocarboxylic acid amides
    8.
    发明授权
    N-Substituted .alpha.-ketocarboxylic acid amides 失效
    N-取代的α-酮羧酸酰胺

    公开(公告)号:US4228082A

    公开(公告)日:1980-10-14

    申请号:US56084

    申请日:1979-07-09

    CPC分类号: C07D307/54

    摘要: Compounds are prepared of the formula ##STR1## where R' is a t-alkyl group having 4 to 18 carbon atoms, preferably t-butyl, t-amyl or t-octyl and R is a straight or branched chain alkyl group with 1 to 18 carbon atoms, preferably 1 to 10 carbon atoms or an alkyl group substituted with one or more phenyl group or a halogen atom, particularly a chlorine atom, or a cycloalkyl group with 3 to 8 carbon atoms, particularly cyclopropyl, which can be substituted by one or more 1 to 3 carbon atom alkyl groups or one or more halogen atoms, preferably chlorine, or phenyl or naphthyl or a five membered heterocyclic group or such phenyl, naphthyl or heterocyclic group substituted by halogen atoms, nitro groups, alkyl or alkoxy with 1 to 5 carbon atoms by condensing in acid medium an acyl cyanide of the formulaR--CO--CN (II)where R is as defined above with either(a) a tertiary alcohol of the formulaHO--R' (III) in which R' is as defined above, or preferably(b) an alkene of the formula ##STR2## where R.sub.1 and R.sub.2 are the same or different and are hydrogen or an alkyl group and wherein R.sub.3 and R.sub.4 are the same or different and wherein the alkyl groups in each case can be 1 to 15 carbon atoms. Some of the compounds are new. They are useful as intermediates for synthesizing herbicides and can be used directly as fungicides.

    摘要翻译: 化合物由式(I)制备,其中R'是具有4至18个碳原子的叔烷基,优选叔丁基,叔戊基或叔辛基,R是直链或支链烷基 具有1至18个碳原子,优选1至10个碳原子的烷基或被一个或多个苯基或卤素原子,特别是氯原子或具有3至8个碳原子的环烷基特别是环丙基取代的烷基,其可以 被一个或多个1至3个碳原子的烷基或一个或多个卤素原子,优选氯,或苯基或萘基或五元杂环基或被卤素原子取代的苯基,萘基或杂环基,硝基,烷基 或具有1至5个碳原子的烷氧基,通过在酸性介质中缩合式R-CO-CN(II)的酰基氰,其中R如上定义,与(a)式HO-R'(III ),其中R'如上所定义,或优选(b)下式的烯烃(I) V)其中R 1和R 2相同或不同并且是氢或烷基,并且其中R 3和R 4相同或不同,并且其中每种情况下的烷基可以是1至15个碳原子。 一些化合物是新的。 它们可用作合成除草剂的中间体,可直接用作杀真菌剂。

    Process for the production thiazolines-(3)
    10.
    发明授权
    Process for the production thiazolines-(3) 失效
    生产噻唑啉的方法 - (3)

    公开(公告)号:US4415738A

    公开(公告)日:1983-11-15

    申请号:US281858

    申请日:1981-07-09

    CPC分类号: C07D277/60 C07D277/10

    摘要: There are produced thiazoline-(3) compounds which optionally are substituted or unsubstituted in the 2 and/or 5 positions by reaction of oxo compounds with a metal sulfides, ammonia and oxo compounds which are substituted by halogen in the position adjacent to the oxo group. In this process a mixture of oxo compounds, metal sulfides and ammonia is present and the halogen substituted oxo compound is introduced into the mixture. By using in this manner of mixing, high yields are obtained in a relatively short period of time.

    摘要翻译: 产生噻唑啉 - (3)化合物,其任选在2和/或5位上被取代或未取代,其中氧代化合物与金属硫化物,氨和氧代化合物的反应,所述卤代化合物在与氧代基相邻的位置被卤素取代 。 在该方法中,存在氧化合物,金属硫化物和氨的混合物,并将卤素取代的氧代化合物引入混合物中。 通过以这种混合方式使用,在相对短的时间内获得高产率。