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
    • 6. 发明授权
    • Process for producing di(aryloxy)alkane
    • 制备二(芳氧基)烷烃的方法
    • US5041604A
    • 1991-08-20
    • US540872
    • 1990-06-20
    • Toranosuke SaitoMasakatu KitaniTakashi Ishibashi
    • Toranosuke SaitoMasakatu KitaniTakashi Ishibashi
    • C07C65/21B01J23/02C07B31/00C07B41/04C07B61/00C07C41/00C07C41/01C07C41/16C07C43/20C07C45/00C07C49/84C07C51/00C07C67/00C07C201/00C07C201/12C07C205/38C07C253/00C07C253/30C07C255/37C07C255/54
    • C07C41/16
    • A process for producing a high quality di(aryloxy)alkane with a high yield by the use of readily commercially available materials, without using any particular solvent or agent and by means of a simple operation and a general apparatus is provided, which process comprises subjecting a halogenated alkane of the formula (II)X--A--Y (II)wherein X and Y each represent a halogen atom and A represents a lower alkylene group, and a phenol of the formula (III) ##STR1## wherein R.sub.1 to R.sub.5 each are same or different, represent hydrogen, halogen, lower alkyl, lower alkoxy, carboxylic acid salt, acyl or nitro group, and may form a ring in conjunction of two adjacent groups,to condensation reaction in the presence of an alkali in an aqueous medium to form a di(aryloxy)alkane of the formula (I) ##STR2## and is characterized (i) by carrying out the condensation reaction in a molar ratio of the compound of the formula (II): the phenol of the formula (III): the alkali in terms of monovalent base of 1:1.5 to 3.0:1.5 to 3.0; or(ii) by carrying out the condensation reaction of the above (i) and adjusting the quantity of the aqueous medium phase after completion of the reaction can be 35% or less based on the oily phase; or(iii) by carrying out the condensation reaction of the above (i), feeding at least the alkali among the reaction components with progress of the reaction and adjusting the quantity of the aqueous medium phase as described in the above (ii).
    • 提供了一种通过使用容易商业化的材料生产高质量的二(芳氧基)烷烃的方法,而不使用任何特定的溶剂或试剂,并且通过简单的操作和一般的设备,该方法包括 式(II)XAY(II)的卤化烷烃,其中X和Y各自表示卤素原子,A表示低级亚烷基,和式(III)的苯酚(III)其中R1至R5各自 相同或不同,表示氢,卤素,低级烷基,低级烷氧基,羧酸盐,酰基或硝基,并且可以与两个相邻基团结合形成环,在碱的存在下在水性介质中进行缩合反应 形成式(I)的二(芳氧基)烷烃(I),其特征在于(i)通过以式(II)的化合物与式(II)的苯酚的摩尔比进行缩合反应: 式(III):以碱为一价碱 为1:1.5至3.0:1.5至3.0; 或者(ii)通过进行上述(i)的缩合反应,并且在反应完成后调整水介质相的量可以基于油相为35%以下。 或者(iii)通过进行上述(i)的缩合反应,至少将反应成分中的碱与反应进行同时进行,并且如上述(ii)所述调节水相介质相的量。
    • 10. 发明授权
    • Color developer for pressure-sensitive recording sheets
    • 压敏记录纸的彩色显影剂
    • US5393332A
    • 1995-02-28
    • US164483
    • 1993-12-09
    • Toranosuke SaitoTakashi IshibashiEiji KawabataMasato TanakaToshio Kimura
    • Toranosuke SaitoTakashi IshibashiEiji KawabataMasato TanakaToshio Kimura
    • C07C51/15C07C65/10C09D11/00
    • C07C51/15
    • Herein disclosed is a method for preparing a nuclear-substituted salicylic acid or a metal salt thereof represented by the following general formula (1): ##STR1## [wherein R.sub.1 and R.sub.2 each represents a t-butyl group, a t-amyl group, a t-octyl group, an isononyl group or an isododecyl group, provided that at least one of R.sub.1 and R.sub.2 represents an isononyl group or an isododecyl group; M represents a hydrogen atom or a metal atom; and n is the atomic valency of the metal atom M] which comprises the step of subjecting, to a Kolbe-Schmitt reaction, an alkali metal salt of a nuclear-substituted phenol represented by the following general formula (2): ##STR2## [wherein R.sub.1 and R.sub.2 are the same as those defined above] in which 100 to 50% of the alkali metal salt is potassium salt and 0 to 50% thereof is sodium salt, in a substantially water-insoluble solvent as a reaction medium. The method makes it possible to improve the yield of the specific nuclear-substituted salicylic acid and metal salts thereof and to provide such products having high purity without any post-treatment. The compounds can be used in color developers for pressure-sensitive recording sheets without any additional purification treatment.
    • 本文公开了一种由以下通式(1)表示的核取代的水杨酸或其金属盐的制备方法:其中R1和R2各自表示叔丁基,t- 戊基,叔辛基,异壬基或异十二烷基,条件是R 1和R 2中的至少一个表示异壬基或异十二烷基; M表示氢原子或金属原子; 并且n是金属原子M的原子价,其包括以下通式(2)表示的核取代苯酚的碱金属盐进行Kolbe-Schmitt反应的步骤:< IMAGE> 2)[其中R1和R2与上述定义相同],其中100〜50%的碱金属盐为钾盐,0〜50%为钠盐,在基本不溶于水的溶剂中作为反应介质 。 该方法可以提高特定的核取代的水杨酸及其金属盐的产率,并提供具有高纯度的这种产品,而不需要后处理。 这些化合物可以用于彩色显影剂,用于压敏记录片材,而无需任何额外的纯化处理。