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
    • 22. 发明授权
    • Naphthol derivatives and process for producing the same
    • 萘酚衍生物及其制备方法
    • US06252104B1
    • 2001-06-26
    • US08764269
    • 1996-12-12
    • Ryuzo UenoShigeru ItoKenji MinamiMasaya Kitayama
    • Ryuzo UenoShigeru ItoKenji MinamiMasaya Kitayama
    • C07C22900
    • C07C235/64C07C65/11C07C65/24C07C69/94C07C235/66C07C275/54C07C311/46C07C2603/24C07D209/88C07D235/26
    • A naphthol derivative represented by the general formula (I), [wherein Y and Y′ indicate —(CONH)n—X or —COR; X is a phenyl group, a naphthyl group, an anthraquinonyl group, a benzimidazolonyl group or a carbazolyl group; R is a hydroxyl group, an alkoxy group having 1 to 6 carbon atoms, a halogen atom, a benzyloxy group, a phenyloxy group or a phenacyloxy group; R2 is a hydrogen atom, an alkaline metal, an alkyl group having 1 to 6 carbon atoms, an acyl group having 1 to 6 carbon atoms or a phenylalkyl group; Z is a group selected from the group consisting of a hydrogen atom, a halogen atom, a nitro group, a nitroso group and an amino group (Z may be substituted on any ring of the naphthalene ring); and n is an integer of 1 or 2; provided that R2 and Z do not simultaneously indicate a hydrogen atom when both R simultaneously indicate a hydroxyl group], and a process for producing the same. This naphthol derivative can be used as raw materials for synthesis, such as dyes, pigments, photosensitive materials and the like.
    • 由通式(I)表示的萘酚衍生物[其中Y和Y'表示 - (CONH)n -X或-COR; X是苯基,萘基,蒽醌基,苯并咪唑啉基或咔唑基; R为羟基,碳原子数为1〜6的烷氧基,卤原子,苄氧基,苯氧基或苯甲酰氧基。 R2是氢原子,碱金属,碳原子数1〜6的烷基,碳原子数1〜6的酰基或苯基烷基; Z是选自氢原子,卤素原子,硝基,亚硝基和氨基的基团(Z可以在萘环的任意环上被取代); n为1或2的整数; 条件是当两个R同时表示羟基时,R2和Z不同时表示氢原子]及其制备方法。 该萘酚衍生物可以用作合成原料,如染料,颜料,感光材料等。
    • 29. 发明申请
    • Process for production of hydroxybenzoic acids
    • 羟基苯甲酸的制备方法
    • US20060183939A1
    • 2006-08-17
    • US10547763
    • 2004-03-02
    • Ryuzo UenoMasaya KitayamaRyoichi OtsukaTakeshi Shirai
    • Ryuzo UenoMasaya KitayamaRyoichi OtsukaTakeshi Shirai
    • C07C51/15
    • C07C51/15C07C65/03
    • The present invention provides A method for producing a hydroxybenzoic acid compound comprising, preparing an alkali metal salt of a phenol compound from the phenol compound, and reacting the alkali metal salt of the phenol compound with carbon dioxide, wherein the step of preparing the alkali metal salt of the phenol compound from the phenol compound comprises the steps of: a) reacting an alkali metal alkoxide with an excess amount of the phenol compound, which is in excess of the alkali metal alkoxide, to give the alkali metal salt of the phenol compound, and b) distilling away the generated alcohol from the reaction simultaneously with carrying out step a). The method of the present invention makes it possible to produce hydroxybenzoic acid compound in high yield without using aprotic polar organic solvent.
    • 本发明提供一种羟基苯甲酸化合物的制造方法,其特征在于,含有由酚化合物制备酚化合物的碱金属盐,使酚化合物的碱金属盐与二氧化碳反应,其中,制备碱金属 酚酚化合物的盐包括以下步骤:a)使碱金属醇盐与过量碱金属醇盐的过量的酚化合物反应,得到酚化合物的碱金属盐 ,和b)在进行步骤a)的同时蒸馏生成的醇与反应物。 本发明的方法使得可以在不使用非质子极性有机溶剂的情况下高产率生产羟基苯甲酸化合物。