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    • 37. 发明申请
    • Condensation Reaction by Metal Catalyst
    • 金属催化剂的缩合反应
    • US20090198070A1
    • 2009-08-06
    • US12085988
    • 2006-12-04
    • Kazushi MashimaTakashi OhshimaTakanori IwasakiHironori MaedaKenya Ishida
    • Kazushi MashimaTakashi OhshimaTakanori IwasakiHironori MaedaKenya Ishida
    • C07F15/00C07D263/08C07D263/52
    • C07D263/12B01J31/2226B01J2531/26C07C53/18C07C231/02C07C253/30C07D263/10C07D263/14C07D263/52C07D413/06C07F3/003C07F7/1892C07F9/5022C07K1/088C07K1/10
    • The invention relates to a method for producing an azoline compound represented by the general formula (3): wherein R1 represents an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted alkoxycarbonyl group, a halogen atom, a substituted amino group, a substituted carbamoyl group or an optionally substituted heterocyclic group; R3, R4, R5 and R6 may be the same or different and each represents a hydrogen atom, an optionally substituted hydrocarbon group, an optionally substituted alkoxy group, an optionally substituted alkoxycarbonyl group, a halogen atom, a substituted amino group, a substituted carbamoyl group or an optionally substituted heterocyclic group; two arbitrary groups selected from R3, R4, R5 and R6 may bond to each other to form a ring; and Z1 represents an oxygen atom, a sulfur atom or a selenium atom; comprising reacting a carboxylic acid or a carboxylic acid derivative represented by the general formula (1): R1CO2R2  (1) wherein R1 is as defined above; R2 represents a hydrogen atom, an optionally substituted alkyl group or an optionally substituted aryl group; and R1 and R2 may bond to each other to form a ring; with an aminochalcogenide represented by the general formula (2): wherein R3, R4, R5, R6 and Z1 are as defined above; in the presence of a compound containing a group 12 metal element in the periodic table.
    • 本发明涉及一种制备由通式(3)表示的唑啉化合物的方法:其中R1表示任选取代的烃基,任选取代的烷氧基,任选取代的烷氧基羰基,卤素原子,取代的氨基, 取代的氨基甲酰基或任选取代的杂环基; R3,R4,R5和R6可以相同或不同,各自表示氢原子,任选取代的烃基,任选取代的烷氧基,任选取代的烷氧基羰基,卤素原子,取代的氨基,取代的氨基甲酰基 基团或任选取代的杂环基团; 选自R3,R4,R5和R6中的两个任意基团可以彼此键合形成环; Z1表示氧原子,硫原子或硒原子; 包括使由通式(1)表示的羧酸或羧酸衍生物反应:<?in-line-formula description =“In-line formula”end =“lead”?> R1CO2R2(1)<? -formulae description =“In-line Formulas”end =“tail”?>其中R1如上定义; R2表示氢原子,任选取代的烷基或任选取代的芳基; 并且R 1和R 2可以彼此键合形成环; 与通式(2)表示的氨基硫族化物:其中R3,R4,R5,R6和Z1如上定义; 在含有元素周期表中第12族金属元素的化合物存在下进行。
    • 39. 发明授权
    • Process of making trifluoroacetic acid
    • 制备三氟乙酸的方法
    • US3894082A
    • 1975-07-08
    • US32152173
    • 1973-01-05
    • KALI CHEMIE AG
    • FERNSCHILD GUNTERPAUCKSCH HEINRICHMASSONNE JOACHIM
    • C07C51/04
    • C07C51/04C07C53/18
    • Substantially anhydrous and chlorine-free trifluoroacetic acid is made in a continuous process by hydrolysis of trifluoroacetyl chloride with water and distillation in a manner wherein the distillation is carried out in a distillation column and attached reflux condenser and gaseous trifluoroacetyl chloride is introduced in the still of the apparatus into a boiling mixture of trifluoroacetic acid, water and hydrogen chloride which mixture has a boiling point between the boiling point of the azeotropic mixture and 72*C/760 Torr. The major portion of the trifluoroacetic acid which condenses at the head of the column is continuously withdrawn from the rising gas mixture at a place ahead of the condenser while the gas mixture which passes through the condenser and includes hydrogen chloride and residual acid is passed into an aqueous solution where it is absorbed while simultaneously an amount of water is added to the still as is necessary for the hydrolysis.
    • 基本上无水和无氯的三氟乙酸通过用水的三氟乙酰氯水解并以蒸馏在蒸馏塔和附着的回流冷凝器中进行蒸馏的方式在连续方法中制备,并将气态三氟乙酰氯引入到 该装置成三氟乙酸,水和氯化氢的沸腾混合物,该混合物的沸点在共沸混合物的沸点和72℃/ 760乇之间。 在塔顶部冷凝的三氟乙酸的主要部分在冷凝器前面的一个地方从上升气体混合物中连续排出,而通过冷凝器并包括氯化氢和残留酸的气体混合物被传入 水溶液中,同时一定量的水加入到静止物中,这是水解所必需的。