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
    • 13. 发明申请
    • PROCESS FOR THE PREPARATION OF HALOGENATED ARYL PHOSPHONATES
    • 制备卤代芳基磷酸酯的方法
    • US20120029224A1
    • 2012-02-02
    • US13125395
    • 2009-10-22
    • Royi MazorAsher ShoshanMichael Peled
    • Royi MazorAsher ShoshanMichael Peled
    • C07F9/40
    • C07F9/4056C07F9/4037C08K5/5337C09K21/12
    • A process for preparing halogen-substituted aryl phosphonates represented by formula (I): wherein each Hal independently represents halogen; k is 1 or 2; n is an integer between 1 and 5, inclusive; m is an integer between 1 and 3, inclusive; and R is a straight or branched C1-C5 alkyl group which may be optionally substituted with one or more halogen atoms, which process comprises reacting under heating a compound represented by the following formula: wherein X is a leaving group, with trialkyl phosphite of the formula (RO)3P, wherein the product of Formula I is produced and maintained in a liquid form and functions as an indigenous reaction liquid medium for suspending or dissolving the reactants, wherein the temperature of the reaction mixture is not less than the melting temperature of said compound of Formula I during at least a portion of the reaction time, and recovering the product of Formula I in a liquid form.
    • 由式(I)表示的卤素取代的芳基膦酸酯的制备方法:其中每个Hal独立地表示卤素; k为1或2; n是1和5之间的整数,包括1和5; m是1和3之间的整数,包括1和3; 并且R是可以任选被一个或多个卤素原子取代的直链或支链C 1 -C 5烷基,该方法包括在加热下使由下式表示的化合物:其中X是离去基团,与 式(RO)3P,其中式I的产物被制备并保持为液体形式,并用作悬浮或溶解反应物的本地反应液体介质,其中反应混合物的温度不低于 所述式I的化合物在至少一部分反应时间内,并以液体形式回收式I的产物。
    • 15. 发明授权
    • Process for the preparation of tetrabromobisphenol A
    • 四溴双酚A的制备方法
    • US07834221B2
    • 2010-11-16
    • US11988274
    • 2006-07-03
    • Joseph Zilberman
    • Joseph Zilberman
    • C07C37/62
    • C07C37/62C07C39/367
    • A process for preparing tetrabromobisphenol A, which comprises: i) reacting bisphenol A and bromine in dichloromethane in the presence of aqueous hydrogen peroxide at a temperature in the range of room temperature to the reflux temperature, wherein said dichloromethane is present in an amount sufficient for substantially dissolving brominated derivatives of said bisphenol A formed thereby, ii) separating the substantially solid-free reaction mixture obtained in step i) into aqueous and organic phases, precipitating tetrabromobisphenol A from the organic phase and isolating said precipitated tetrabromobisphenol A from said organic phase.
    • 一种制备四溴双酚A的方法,其包括:i)在室温至回流温度范围内的温度范围内,在双氧水中,在过氧化氢水溶液存在下,使双酚A和溴反应,其中所述二氯甲烷的存在量足以 基本上溶解由此形成的所述双酚A的溴化衍生物,ii)将步骤i)中获得的基本上无固体的反应混合物分离成水相和有机相,从有机相中沉淀出四溴双酚A,并将所述沉淀的四溴双酚A从所述有机相中分离出来。
    • 16. 发明申请
    • Process of preparing bromopicrin
    • 溴氰菊酯制备方法
    • US20100152501A1
    • 2010-06-17
    • US11989585
    • 2006-08-22
    • Jakob OrenLeah GolanRon Frim
    • Jakob OrenLeah GolanRon Frim
    • C07C205/02
    • C07C201/12C07C205/08
    • Process of preparing high purity bromopicrin, and high purity bromopicrin produced therefrom. Providing a mixture of nitromethane and bromine, and preferably water, and absent of organic solvent. Adding an aqueous solution of an alkaline substance to the mixture, thereby providing a reaction mixture containing bromopicrin, the adding performed such that no excess of the alkaline substance occurs in the reaction mixture during the adding. Collecting the organic phase (containing the bromopicrin) from the reaction mixture. No need for subjecting the organic phase of the reaction mixture to distillation or extraction, for obtaining near quantitative yield of bromopicrin having purity of at least equal to or greater than 96 weight percent. Process parameters controlling selectivity of reaction forming bromopicrin are molar ratio of bromine and nitromethane in the mixture; reaction temperature while bromopicrin is formed; concentration of the alkaline substance in the aqueous solution; and reaction time.
    • 制备高纯度溴氰菊酯和由其制备的高纯度溴氰菊酯的方法。 提供硝基甲烷和溴的混合物,优选水,并且不存在有机溶剂。 向混合物中加入碱性物质的水溶液,由此提供含有溴氰菊酯的反应混合物,进行添加,使得在添加期间反应混合物中不会发生过量的碱性物质。 从反应混合物中收集有机相(含溴氰菊酯)。 不需要使反应混合物的有机相进行蒸馏或萃取,以获得纯度至少等于或大于96重量%的溴定额素的近定量产率。 控制反应形成溴氰菊酯的选择性的工艺参数是混合物中溴和硝基甲烷的摩尔比; 反应温度,同时形成溴化铁; 碱性物质在水溶液中的浓度; 和反应时间。