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    • 32. 发明授权
    • Preparation of N-substituted arylsulfonamides
    • N-取代芳基磺酰胺的制备
    • US4713489A
    • 1987-12-15
    • US820876
    • 1986-01-16
    • Gail H. BirumRichard F. Jansen
    • Gail H. BirumRichard F. Jansen
    • C07C311/15C07C143/79
    • C07C311/15
    • N-substituted arylsulfonamides which comprises the steps of (a) reacting an aryl hydrocarbon with chlorosulfonic acid to form a crude chlorosulfonation reaction product, (b) adding said crude reaction product to a mixture comprising an aliphatic amine, an alkali or alkaline earth metal hydroxide and water to form an amidation reaction mixture, (c) maintaining the temperature of the amidation reaction mixture at between about 50.degree. C. and 100.degree. C. and the pH at above about 7 with stirring for a period of time of up to about 2 hours, and optionally (d) separating the resulting N-substituted arylsulfonamide from the amidation reaction product.
    • N-取代的芳基磺酰胺,其包括以下步骤:(a)使芳基烃与氯磺酸反应以形成粗氯磺化反应产物,(b)将所述粗反应产物加入到包含脂族胺,碱金属或碱土金属氢氧化物 和水以形成酰胺化反应混合物,(c)将酰胺化反应混合物的温度保持在约50℃至100℃,pH高于约7,同时搅拌一段时间至多约 2小时,任选地(d)从酰胺化反应产物中分离得到的N-取代的芳基磺酰胺。
    • 39. 发明授权
    • Benzenesulfonamide derivatives
    • 苯磺酰胺衍生物
    • US4157257A
    • 1979-06-05
    • US837911
    • 1977-09-29
    • Tetsuo TakematsuMakoto KonnaiHiroyoshi Omokawa
    • Tetsuo TakematsuMakoto KonnaiHiroyoshi Omokawa
    • A01N41/06C07C311/15A01N9/14C07C143/79C07C143/82
    • C07C255/00A01N41/06
    • A compound of the general formula ##STR1## wherein R.sub.0 represents an alkyl group optionally having a substituent selected from the class consisting of a cyano group, lower alkoxy groups and di-(lower alkyl)amino groups, a lower alkenyl group, or a lower alkynyl group; R.sub.1, R.sub.2 and R.sub.3, independently from each other, represent a hydrogen atom, a halogen atom, a lower alkyl group, or a lower alkoxy group; R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8, independently from each other, represent a hydrogen atom, a halogen atom, a lower alkyl group, or a lower alkoxy group; Y represents a group of the formula ##STR2## or a group of the formula ##STR3## in which one of R.sub.9 and R.sub.10 is a lower alkyl group and the other is a hydrogen atom or a lower alkyl group; with the proviso that when Y is the group ##STR4## and R.sub.0 represents an unsubstituted alkyl group, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 do not represent hydrogen atoms at the same time. The compounds of formula (I) are produced by the reaction of the corresponding benzenesulfonamide derivatives with the corresponding benzyl or benzoyl halides; the reaction of the corresponding benzenesulfonyl halides with the corresponding benzylamines or benzoyl amides; or by the alkylation, alkenylation or alkynylation of the corresponding compounds of formula (I) in which R.sub.0 is hydrogen. The compounds of formula (I) have superior selective herbicidal effects, and are useful as active ingredients of herbicides, especially those for application to aquatic rice paddies.
    • 通式(I)的化合物,其中R 0表示任选具有选自氰基,低级烷氧基和二 - (低级烷基)氨基的取代基的烷基,低级烯基, 或低级炔基; R 1,R 2和R 3彼此独立地表示氢原子,卤素原子,低级烷基或低级烷氧基; R4,R5,R6,R7和R8彼此独立地表示氢原子,卤素原子,低级烷基或低级烷氧基; Y表示式为“IMAGE”的基团或其中R9和R10中的一个为低级烷基且另一个为氢原子或低级烷基的式“IMAGE”的基团; 条件是当Y为基团时,R 0表示未取代的烷基,R 4,R 5,R 6,R 7和R 8不同时表示氢原子。 式(I)化合物通过相应的苯磺酰胺衍生物与相应的苄基或苯甲酰基卤化物的反应产生; 相应的苯磺酰卤与相应的苄胺或苯甲酰胺的反应; 或通过其中R 0是氢的相应的式(I)化合物的烷基化,烯基化或炔基化。 式(I)的化合物具有优异的选择性除草效果,并且可用作除草剂的活性成分,特别是用于水稻的施用。