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    Process for manufacture of N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives in the presence of N,N-dialkylarylamine catalyst and aqueous solvent
    1.
    发明授权
    Process for manufacture of N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives in the presence of N,N-dialkylarylamine catalyst and aqueous solvent 有权
    在N，N-二烷基芳基胺催化剂和含水溶剂存在下制备N-烷氧基（或芳氧基）羰基异硫氰酸酯衍生物的方法

    公开(公告)号：US06184412B2

    公开(公告)日：2001-02-06

    申请号：US09329405

    申请日：1999-06-10

    Applicant: Shekhar V. Kulkarni ,  Vijay C. Desai

    Inventor： Shekhar V. Kulkarni ,  Vijay C. Desai

    IPC: C07C26100

    CPC classification number: C07C333/10

    Abstract: The present invention provides a process for making N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives by reacting a chloroformate with a thiocyanate, in the presence of an aqueous solvent and a catalytic amount of a N,N-dialkylarylamine, to produce a N-alkoxy(or aryloxy)carbonyl isothiocyanate intermediate product, wherein the intermediate product is converted to a N-alkoxy(or aryloxy)carbonyl isothiocyanate derivative in high yield and purity.

    Abstract translation: 本发明提供了在含水溶剂和催化量的N，N-二烷基芳基胺的存在下使氯甲酸酯与硫氰酸酯反应制备N-烷氧基（或芳氧基）羰基异硫氰酸酯衍生物的方法， 烷氧基（或芳氧基）羰基异硫氰酸酯中间产物，其中中间产物以高产率和纯度转化为N-烷氧基（或芳氧基）羰基异硫氰酸酯衍生物。

    Stable, dry compositions for use as herbicides
    2.
    发明授权
    Stable, dry compositions for use as herbicides 有权
    用作除草剂的稳定的干燥组合物

    公开(公告)号：US6071858A

    公开(公告)日：2000-06-06

    申请号：US165139

    申请日：1998-10-01

    Applicant: Thomas F. Modrcin ,  Vijay C. Desai ,  Peter E. Newallis ,  Klaus Jelich ,  John W. Brandriff ,  Dennis E. Jackman

    Inventor： Thomas F. Modrcin ,  Vijay C. Desai ,  Peter E. Newallis ,  Klaus Jelich ,  John W. Brandriff ,  Dennis E. Jackman

    IPC: A01N43/82 ,  A01N43/64

    CPC classification number: A01N43/82

    Abstract: The present invention relates to a dry composition that can be used as a herbicide. The composition contains N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one, and a pH adjusting agent. The pH adjusting agent is present in an amount such that it constitutes from about 0.1% to about 10% of the composition, and the resulting pH is from about 2.8 to about 5.4. The molar ratio of 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one to N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadiazol-2-yl]oxy]acetamide in the composition is from about 1:1 to about 1:6.

    Abstract translation: 本发明涉及可用作除草剂的干组合物。 该组合物含有N-（4-氟苯基）-N-（1-甲基乙基）-2 - [[5-（三氟甲基）-1,3,4-噻二唑-2-基]氧基]乙酰胺，4-氨基-6- - （1,1-二甲基乙基）-3-（甲硫基）-1,2,4-三嗪-5-（4H） - 酮和pH调节剂。 pH调节剂的存在量使其占组合物的约0.1％至约10％，所得pH为约2.8至约5.4。 4-氨基-6-（1,1-二甲基乙基）-3-（甲硫基）-1,2,4-三嗪-5-（4H） - 酮与N-（4-氟苯基）-N- （1-甲基乙基）-2 - [[5-（三氟甲基）-1,3,4-噻二唑-2-基]氧基]乙酰胺为约1:1至约1:6。

    Process for the production of an N-acyl derivative of O,S-dialkyl phosphoroamidothioate
    3.
    发明授权
    Process for the production of an N-acyl derivative of O,S-dialkyl phosphoroamidothioate 有权
    制备O，S-二烷基氨基硫代磷酸酯的N-酰基衍生物的方法

    公开(公告)号：US5973180A

    公开(公告)日：1999-10-26

    申请号：US143769

    申请日：1998-08-31

    Applicant: Vijay C. Desai ,  David T. Erdman ,  Klaus Jelich ,  Peter E. Newallis

    Inventor： Vijay C. Desai ,  David T. Erdman ,  Klaus Jelich ,  Peter E. Newallis

    IPC: C07F9/00 ,  C07F9/24

    CPC classification number: C07F9/2487

    Abstract: The present invention relates to an improved process for the preparation of an acyl derivative of O,S-dialkyl phosphoroamidothioate by reacting an O,S-dialkyl phosphoroamidothioate with an acylating agent in the presence of an acid, wherein the improvement resides in adding a C.sub.4 to C.sub.8 aliphatic alcohol, following completion of the acylation reaction, to the mixture of the N-acyl-O,S-dialkyl phosphoroamidothioate, the acylating agent and the acid. In an embodiment of the present invention, the acylation reaction is conducted in the absence of a solvent. The aliphatic alcohol is easily recovered and can be reused in a subsequent acylation reaction.

    Abstract translation: 本发明涉及通过在酸存在下使O，S-二烷基磷酰胺硫代磷酸酯与酰化剂反应制备O，S-二烷基硫代氨基硫代酯的酰基衍生物的改进方法，其中改进在于加入C4 C8酰化O，S-二烷基硫代氨基硫代磷酸酯，酰化剂和酸的混合物。 在本发明的一个实施方案中，酰化反应在不存在溶剂的情况下进行。 脂肪醇容易回收，可以在随后的酰化反应中重复使用。

    Process for preparing alkoxytriazolinones
    4.
    发明授权
    Process for preparing alkoxytriazolinones 失效
    制备烷氧基三唑啉酮的方法

    公开(公告)号：US5917050A

    公开(公告)日：1999-06-29

    申请号：US22262

    申请日：1998-02-11

    Applicant: Michael Conrad ,  Reinhard Lantzsch ,  Vijay C. Desai ,  Shekhar V. Kulkarni

    Inventor： Michael Conrad ,  Reinhard Lantzsch ,  Vijay C. Desai ,  Shekhar V. Kulkarni

    IPC: C07D249/12

    CPC classification number: C07D249/12

    Abstract: Alkoxytriazolinones of the formula (I) �known for example as intermediates for preparing agrochemically active compounds! ##STR1## wherein R represents an alkyl group, an alkenyl group, an alkinyl group, a cycloalkyl group, a cycloalkylalkyl group, an aryl group or an arylalkyl group, any of which may be substituted, are prepared by reactinga) thioimidodicarboxylic diesters of the general formula (II) ##STR2## wherein R is as defined above and R.sup.1 represents an alkyl group, an arylalkyl group or an aryl group, any of which may be substituted, withb) hydrazine, hydrazine hydrate or an acid adduct of hydrazine.The reaction is conducted i) in the presence of a diluent and, optionally, in the presence of a basic reaction auxiliary, and ii) at temperatures between -10.degree. C. and +100.degree. C.

    Abstract translation: 式（I）的烷氧基​​三唑啉酮[已知为例如制备农用化学活性化合物的中间体]其中R表示烷基，烯基，炔基，环烷基，环烷基烷基，芳基或芳基烷基， 其中任一个可以被取代，通过使通式（II）的硫代亚氨基二羧酸二酯与其中R如上定义并且R 1表示烷基，芳烷基或芳基，其中任何一个可以被取代的通式 与b）肼，水合肼或肼的酸加合物。 反应是在稀释剂存在下，任选地，在碱性反应助剂的存在下进行的，和ii）在-10℃至+ 100℃的温度下进行。

    Process for the manufacture of sulfonylaminocarbonyl triazolinones and salts thereof
    5.
    发明授权
    Process for the manufacture of sulfonylaminocarbonyl triazolinones and salts thereof 有权
    磺酰氨基羰基三唑啉酮及其盐的制备方法

    公开(公告)号：US6147221A

    公开(公告)日：2000-11-14

    申请号：US472335

    申请日：1999-12-27

    Applicant: Vidyanatha A. Prasad ,  Shekhar V. Kulkarni ,  Eric Rivadeneira ,  Vijay C. Desai

    Inventor： Vidyanatha A. Prasad ,  Shekhar V. Kulkarni ,  Eric Rivadeneira ,  Vijay C. Desai

    IPC: C07D249/12

    CPC classification number: C07D249/12

    Abstract: The present invention relates to a process for manufacturing sulfonylaminocarbonyl triazolinones and salts thereof, which are herbicidally active compounds, wherein the process does not require isolation of the intermediate product. In particular, this invention relates to the conversion of a substituted triazolinone to a sulfonylaminocarbonyl triazolinone, and without the isolation of this intermediate product, the sulfonylaminocarbonyl triazolinone is then converted to a salt thereof.

    Abstract translation: 本发明涉及一种制备除草活性化合物的磺酰氨基羰基三唑啉酮及其盐的方法，其中该方法不需要中间产物的分离。 特别地，本发明涉及取代的三唑啉酮转化为磺酰基氨基羰基三唑啉酮，并且不分离该中间产物，然后将磺酰基氨基羰基三唑啉酮转化为其盐。

    Process for preparing 4-amino-1,2,4-triazolin-5-ones
    6.
    发明授权
    Process for preparing 4-amino-1,2,4-triazolin-5-ones 有权
    制备4-氨基-1,2,4-三唑啉-5-酮的方法

    公开(公告)号：US5912354A

    公开(公告)日：1999-06-15

    申请号：US210321

    申请日：1998-12-11

    Applicant: Vijay C. Desai ,  Klaus Jelich ,  Hans Joachim Diehr ,  Reinhard Lantzsch

    Inventor： Vijay C. Desai ,  Klaus Jelich ,  Hans Joachim Diehr ,  Reinhard Lantzsch

    IPC: C07D249/12

    CPC classification number: C07D249/12

    Abstract: The present invention is related to an improved process for the commercial preparation of substituted aminotriazolinones, which are known intermediates in the preparation of herbicidal active compounds. In particular, this invention relates to the preparation of 4-amino-1,2,4-triazolin-5-ones, and more particularly to the preparation of 3-isopropyl-4-aminotriazolinone. The process of the invention includes reacting an oxadiazolinone with hydrazine hydrate in the absence of a solvent. In a preferred embodiment, the hydrazine hydrate is mixed with a basic compound, preferably aqueous sodium hydroxide.

    Abstract translation: 本发明涉及商业上制备取代氨基三唑啉酮的改进方法，其是制备除草活性化合物的已知中间体。 特别地，本发明涉及4-氨基-1,2,4-三唑啉-5-酮的制备，更具体地说涉及3-异丙基-4-氨基三唑啉酮的制备。 本发明的方法包括在不存在溶剂的情况下使恶二唑啉酮与水合肼反应。 在优选的实施方案中，将水合肼与碱性化合物，优选氢氧化钠水溶液混合。

    Processes for the preparation of &agr;-substituted benzylnitroguanidines
    10.
    发明授权
    Processes for the preparation of &agr;-substituted benzylnitroguanidines 有权
    制备α-取代的苄基硝基胍的方法

    公开(公告)号：US06680408B2

    公开(公告)日：2004-01-20

    申请号：US10175639

    申请日：2002-06-20

    Applicant: David M. Mayes ,  Vijay C. Desai ,  Eric Rivadeneira

    Inventor： David M. Mayes ,  Vijay C. Desai ,  Eric Rivadeneira

    IPC: C07C27708

    CPC classification number: C07C277/08 ,  C07C279/36

    Abstract: Processes for preparing &agr;-substituted benzylnitroguanidines include the steps of providing a reaction mixture comprising water, alcohol, an S-alkyl nitroisothiourea, and an &agr;-substituted benzylamine; heating the reaction mixture; steam distilling the alcohol from the reaction mixture; and isolating an &agr;-substituted benzylnitroguanidine from the remaining water layer.

    Abstract translation: 制备α-取代的苄基硝基胍的方法包括提供包含水，醇，S-烷基硝基异硫脲和α-取代的苄胺的反应混合物的步骤; 加热反应混合物; 将蒸汽从反应混合物中蒸馏出来; 并从剩余的水层中分离出α-取代的苄基硝基胍。

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