Process for producing organic compounds using nitrites
    76.
    发明授权
    Process for producing organic compounds using nitrites 失效
    使用亚硝酸盐生产有机化合物的方法

    公开(公告)号:US06768023B2

    公开(公告)日:2004-07-27

    申请号:US10379600

    申请日:2003-03-06

    Abstract: A process produces an organic compound by allowing (A) a compound capable of generating a free radical to react with (B) at least one of esters and salts of nitrous acid in the presence of a nitrogen-containing cyclic compound constitutively having a skeleton represented by following Formula (i) in its ring: wherein X is an oxygen atom or an —OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group. Examples of the nitrogen-containing cyclic compound are cyclic imide compounds having a cyclic imide skeleton represented by following Formula (I): wherein n is 0 or 1; X is an oxygen atom or an —OR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group.

    Abstract translation: 一种方法通过使(A)能够产生自由基的化合物在(B)至少一种亚硝酸的酯和盐的存在下,使组成性地具有骨架的含氮环状化合物 其中X为氧原子或-OR基团,其中R为氢原子或羟基保护基团。 含氮环状化合物的实例是具有由下式(I)表示的环状酰亚胺骨架的环状酰亚胺化合物:其中n为0或1; X是氧原子或-OR基团,其中R是氢原子或羟基保护基团。

    Process for producing organic compounds using nitrites
    77.
    发明申请
    Process for producing organic compounds using nitrites 失效
    使用亚硝酸盐生产有机化合物的方法

    公开(公告)号:US20030171618A1

    公开(公告)日:2003-09-11

    申请号:US10379600

    申请日:2003-03-06

    Abstract: A process produces an organic compound by allowing (A) a compound capable of generating a free radical to react with (B) at least one of esters and salts of nitrous acid in the presence of a nitrogen-containing cyclic compound constitutively having a skeleton represented by following Formula (i) in its ring: 1 wherein X is an oxygen atom or an nullOR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group. Examples of the nitrogen-containing cyclic compound are cyclic imide compounds having a cyclic imide skeleton represented by following Formula (I): 2 wherein n is 0 or 1; X is an oxygen atom or an nullOR group, and wherein R is a hydrogen atom or a hydroxyl-protecting group.

    Abstract translation: 一种方法通过使(A)能够产生自由基的化合物在(B)至少一种亚硝酸的酯和盐的存在下,使组成性地具有骨架的含氮环状化合物 其中X为氧原子或-OR基团,其中R为氢原子或羟基保护基团。 含氮环状化合物的实例是具有由下式(I)表示的环状酰亚胺骨架的环状酰亚胺化合物:其中n为0或1; X是氧原子或-OR基团,其中R是氢原子或羟基保护基团。

    Process for the preparation of nitrosobenzenes
    78.
    发明授权
    Process for the preparation of nitrosobenzenes 失效
    制备亚硝基苯的方法

    公开(公告)号:US06274775B1

    公开(公告)日:2001-08-14

    申请号:US09707261

    申请日:2000-11-06

    CPC classification number: C07C201/00 C07C207/04 C07C207/02

    Abstract: The invention relates to a process for the preparation of nitrosobenzene from aromatic amines by oxidation with hydrogen peroxide in the presence of a catalyst based on compounds of tungsten and/or molybdenum without the addition of the organic solvents conventionally used.

    Abstract translation: 本发明涉及一种通过在基于钨和/或钼的化合物的催化剂的存在下用过氧化氢氧化从芳族胺制备亚硝基苯的方法,而不添加常规使用的有机溶剂。

    Nitrosation of aromatic compounds
    79.
    发明授权
    Nitrosation of aromatic compounds 失效
    芳香族化合物的亚硝化

    公开(公告)号:US4232175A

    公开(公告)日:1980-11-04

    申请号:US858508

    申请日:1977-12-08

    CPC classification number: C07C201/00

    Abstract: Aromatic compounds in an acidic, aqueous solution can be economically nitrosated by treatment with the hydration products of oxides of nitrogen at a temperature in the range of -15.degree. C. to 10.degree. C. The oxides of nitrogen are generated as a gas from a separate solution or slurry by the reaction of an alkali metal nitrate with a strong mineral acid at a temperature in the range of 15.degree. C. to 35.degree. C. This method of nitrosation employs relatively inexpensive reagents, but can be carried on continuously and produces unexpectedly high yield of para-nitrosated product from a monosubstituted starting material.

    Abstract translation: 酸性水溶液中的芳族化合物可以通过在-15℃至10℃的温度范围内用氮氧化物的水化产物处理而经济地亚硝化。氮气的氧化物是从 通过碱金属硝酸盐与强无机酸在15℃至35℃的温度下反应而分离的溶液或浆料。该亚硝化方法使用相对便宜的试剂,但可以连续进行并产生 从单取代的原料出人意料地高产率的对硝基化产物。

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