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    • 3. 发明授权
    • Adiabatic process for the production of 2,4-dichloro-6-amino-S-triazines
    • 用于生产2,4-二氯-6-氨基-S-三嗪的绝热方法
    • US3883515A
    • 1975-05-13
    • US34101973
    • 1973-03-14
    • CIBA GEIGY CORP
    • TANDON JAI PRAKASHDURRELL WILLIAM SANDFORD
    • C07D55/18
    • C07D251/16
    • A method for the production of 2,4-dichloro-6-mono substituted amino-s-triazines by reacting, in a solvent medium containing water, under substantially adiabatic conditions and for a relatively short period of time, cyanuric chloride with (a) a primary or secondary amine or (b) an amino compound containing in the molecule at least one water-solubilizing group such as a carboxylic acid or a sulfonic acid group. One group of products obtained by the process of the present invention are intermediates useful in the preparation of 2-chloro-4,6-diaminochloro-s-triazine products which are employed in inhibiting the growth of undesirable plants and are therefore extremely important and valuable for use as herbicides. Another group of compounds obtained by the present process are useful as intermediates in the production of optical brighteners or dyestuff components.
    • 在含有水的溶剂介质中,在基本上绝热的条件下和相对较短的时间内使氰尿酰氯与(a)的反应生成2,4-二氯-6-单取代的氨基-s-三嗪的方法, 伯胺或仲胺或(b)分子中含有至少一个水溶性基团如羧酸或磺酸基团的氨基化合物。 通过本发明的方法获得的一组产物是可用于制备2-氯-4,6-二氨基 - 氯-s-三嗪产物的中间体,其用于抑制不期望的植物的生长,因此是非常重要的 并且作为除草剂有用。 通过本方法获得的另一组化合物可用作生产荧光增白剂或染料组分的中间体。
    • 5. 发明授权
    • Process for preparing herbicidal triazines
    • 制备除草剂的方法
    • US3850924A
    • 1974-11-26
    • US34832473
    • 1973-04-05
    • DU PONT
    • FUCHS JWOMMACK J
    • C07C335/38C07D55/18
    • C07C335/38
    • D: TREATING THE PRODUCT OF STEP C WITH A BASE M''OR TO CYCLIZE AND FORM THE DESIRED PRODUCT; WHEREIN, IN THE ABOVE FORMULAE: R1 IS C2-C8 ALKYL, C5-C8 CYCLOALKYL, NORBORNYL, METHYLCYCLOHEXYL, METHYLCYCLOPENTLY, PHENYL, OR CHLOROPHENYL; R3 IS HYDROGEN OR METHYL; R4 IS C1-C4 ALKYL; X IS OXYGEN OR SULFUR; PROVIDED THAT WHEN X IS SULFUR, R3 IS METHYL; Z IS IODIDE OR -O-SO2-OCH3; M'' IS ALKALI METAL; AND R IS HYDROGEN OR C1-C4 ALKYL.

      TETRAHYDRO-TRIAZINE

      WHICH COMPRISES THE FOLLOWING STEPS IN SEQUENCE: A: REACTING A METHYLATING AGENT OF THE FORMULA CH3Z WITH METHOXYCARBONYLCYANAMIDE TO FORM N-METHOXYCARBONYL-N-METHYLCYANAMIDE; B: REACTING THE PRODUCT OF STEP A WITH AN AMINE OF THE FORMULA R3R4NH TO FORM A COMPOUND OF THE FORMMULA:

      H3C-OOC-N(-CH3)-C(-NH)-N(-R3)-R4

      C: REACTING THE PRODUCT OF STEP B WITH AN ISOCYANATE OR ISOTHIOCYANATE OF THE FORMULA R1NCX TO FORM A COMPOUND OF THE FORMULA:

      H3C-OOC-N(-CH3)-C(-N(-R3)-R4)=N-C(=X)-NH-R1

      1. A PROCESS FOR PREPARATION OF COMPOUNDS OF THE FORMULA:

      2-(R3-N(-R4)-),3-(H3C-),4-(O=),5-R1,6-(X=)-3,4,5,6-