会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Process for the preparation of hydroxycarboxanilides
    • 羟基羧酰苯胺的制备方法
    • US5631403A
    • 1997-05-20
    • US493272
    • 1995-06-21
    • Andreas DierdorfSiegfried PlankerTheodor Papenfuhs
    • Andreas DierdorfSiegfried PlankerTheodor Papenfuhs
    • C07C231/12C07C235/16C07C253/30C07C233/05C07C233/88
    • C07C235/16C07C231/12C07C253/30
    • The present invention relates to a process for the preparation of hydroxycarboxanilides of the formula (1) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are hydrogen, halogen, a nitro group, a cyano group, a straight-chain or branched alkyl, alkenyl, alkynyl or alkoxy group having 1 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, a cycloalkyl group having 6 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, R.sup.3 is hydrogen or a straight-chain or branched alkyl group having 1 to 12 carbon atoms and n is an integer from 1 to 12, by reacting a halocarboxanilide of the formula (2) ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and n have the same meaning as in formula (1) and Hal is chlorine, bromine or iodine, with a basic compound in a solvent mixture comprising water and one or more polar aprotic solvents at a temperature of 40.degree. to 180.degree. C.
    • 本发明涉及制备式(1)的羟基羧酰苯胺的方法,其中R 1和R 2相同或不同,为氢,卤素,硝基,氰基, 具有1至12个碳原子的直链或支链烷基,烯基,炔基或烷氧基,具有7至12个碳原子的芳烷基,具有6至12个碳原子的环烷基或具有6至12个碳原子的芳基,R3是 氢或具有1至12个碳原子的直链或支链烷基,n为1至12的整数,通过使式(2)的卤代甲酰苯胺(2)反应,其中R 1,R 2,R 3和 n具有与式(1)中相同的含义,Hal是氯,溴或碘,在含有水和一种或多种极性非质子溶剂的溶剂混合物中,在40至180℃的温度下使用碱性化合物。
    • 5. 发明授权
    • Process for the preparation of o-acyloxycarboxanilides
    • 邻酰氧基甲酰苯胺的制备方法
    • US5693852A
    • 1997-12-02
    • US597884
    • 1996-02-07
    • Andreas DierdorfTheodor PapenfuhsSiegfried Planker
    • Andreas DierdorfTheodor PapenfuhsSiegfried Planker
    • C07C231/12C07C235/16C07C67/02
    • C07C231/12C07C235/16
    • The present invention relates to a process for the preparation of O-acyloxycarboxanilides of the formula (I) ##STR1## in which R is a radical having 1 to 6 carbon atoms, n is an integer from 1 to 10, R.sup.1 is hydrogen or an alkyl radical having 1 to 12 carbon atoms, R.sup.2 and R.sup.3 are identical or different and are hydrogen, an alkyl radical having 1 to 12 carbon atoms, an aryl radical having 6 to 12 carbon atoms, a cycloalkyl radical having 5 to 12 carbon atoms in the ring, an alkenyl or alkynyl radical having 3 to 12 carbon atoms, NO.sub.2, F, Cl, Br or CN, by reacting a chlorocarboxanilide of the formula (II) ##STR2## in which n, R.sup.1, R.sup.2 and R.sup.3 have the abovementioned meaning, with an alkali metal carboxylate of the formula (III) R--COOMe (III), in which R has the abovementioned meaning and Me is an alkali metal, in the presence of an inert solvent and of a carboxylic acid having 1 to 6 carbon atoms, at 50.degree. to 200.degree. C.
    • 本发明涉及一种制备式(I)的O-酰氧基甲酰苯胺的方法,其中R为具有1至6个碳原子的基团,n为1至10的整数,R 1为 氢或具有1至12个碳原子的烷基,R 2和R 3相同或不同,为氢,具有1至12个碳原子的烷基,具有6至12个碳原子的芳基,环烷基具有5至12个 通过使式(II)的氯代甲酰苯胺(II)反应,其中n,R 1,R 2,R 3, R2和R3具有上述含义,与式(III)的碱金属羧酸盐反应,其中R为具有上述含义的R-COOMe(III),Me为碱金属,在惰性溶剂存在下, 具有1至6个碳原子的羧酸,在50至200℃。