-
公开(公告)号：US06187964B1
公开(公告)日：2001-02-13
申请号：US09353311
申请日：1999-07-14
IPC分类号： C07C3700
CPC分类号： C07C51/255 , C07C37/0555 , C07C51/285 , C07C67/39 , C07C67/54 , C07C63/04 , C07C69/017 , C07C69/07 , C07C39/07
摘要： A method of producing a phenol compound comprising a step of oxidizing an aromatic aldehyde to an aryl formate and an aromatic carboxylic acid with an oxygen-containing gas, and a step of decomposing the aryl formate to the phenol compound. To facilitate the separation of the aryl formate and the unreacted aromatic aldehyde, a mixture of the aryl formate and the unreacted aromatic aldehyde is recycled to the oxidation process to concentrate the aryl formate in the oxidation mixture. Alternatively, the oxidation process is carried out in an organic solvent having substantially no ability of dissolving water to increase the conversion of the aromatic aldehyde and the selectivity of the aryl formate, thereby producing the aryl formate in a high yield. In another method, the aryl formate is produced by oxidizing the aromatic aldehyde in the organic solvent having substantially no ability of dissolving water with performic acid generated in situ in the reaction system from the reaction between formic acid and hydrogen peroxide. Since the oxidation proceeds in the organic solvent, hydrogen peroxide in aqueous phase contact the aromatic aldehyde. This significantly reduces the amount of explosive cyclic perther and a high-boiling product.
摘要翻译： 一种生产酚化合物的方法，包括用含氧气体将芳族醛氧化为芳基甲酸酯和芳族羧酸的步骤，以及将芳基甲酸酯分解成酚化合物的步骤。 为了促进甲酸芳基酯和未反应的芳族醛的分离，将甲酸芳基酯和未反应的芳族醛的混合物循环到氧化过程中以将甲酸芳基酯浓缩在氧化混合物中。 或者，氧化方法在基本上没有溶解水的能力的有机溶剂中进行，以增加芳族醛的转化率和甲酸芳基酯的选择性，从而以高产率生产甲酸芳基酯。 在另一种方法中，通过氧化芳族醛在有机溶剂中氧化芳族醛，通过在反应体系中原位产生的甲酸与甲酸和过氧化氢之间的反应基本上不溶解水的能力来进行氧化。 由于在有机溶剂中进行氧化，水相中的过氧化氢与芳族醛接触。 这显着地减少了爆炸性环状花药和高沸点产物的量。
-
公开(公告)号：US20090054646A1
公开(公告)日：2009-02-26
申请号：US12282381
申请日：2007-03-14
申请人： Kazuo Tanaka , Yoshifumi Sato , Takafumi Yoshimura
发明人： Kazuo Tanaka , Yoshifumi Sato , Takafumi Yoshimura
IPC分类号： C07D239/88
CPC分类号： C07D239/88
摘要： In reacting an anthranilic acid derivative represented by the general formula (1), especially the anthranilic acid derivative selected from anthranilic acid, anthranilamide and anthranilate, with formamide, the reaction is attained under the condition of coexistence of acetic acid and a base as a catalyst in the reaction liquid, and it has made it possible to produce a quinazolin-4-one derivative represented by the general formula (2) and useful as a material for medicine intermediates, at high yield with no side production.
摘要翻译： 在使通式（1）表示的邻氨基苯甲酸衍生物，特别是选自邻氨基苯甲酸，邻氨基苯甲酰胺和邻氨基苯甲酸酯的邻氨基苯甲酸衍生物与甲酰胺反应时，在乙酸和碱作为催化剂共存的条件下反应 在反应液中，可以以高产率生产无副产物的由通式（2）表示的喹唑啉-4-酮衍生物作为医药中间体的材料。
-
公开(公告)号：US08173806B2
公开(公告)日：2012-05-08
申请号：US12282381
申请日：2007-03-14
申请人： Kazuo Tanaka , Yoshifumi Sato , Takafumi Yoshimura
发明人： Kazuo Tanaka , Yoshifumi Sato , Takafumi Yoshimura
IPC分类号： C07D239/72
CPC分类号： C07D239/88
摘要： In reacting an anthranilic acid derivative represented by the general formula (1), especially the anthranilic acid derivative selected from anthranilic acid, anthranilamide and anthranilate, with formamide, the reaction is attained under the condition of coexistence of acetic acid and a base as a catalyst in the reaction liquid, and it has made it possible to produce a quinazolin-4-one derivative represented by the general formula (2) and useful as a material for medicine intermediates, at high yield with no side production.
摘要翻译： 在使通式（1）表示的邻氨基苯甲酸衍生物，特别是选自邻氨基苯甲酸，邻氨基苯甲酰胺和邻氨基苯甲酸酯的邻氨基苯甲酸衍生物与甲酰胺反应时，在乙酸和碱作为催化剂共存的条件下反应 在反应液中，可以以高产率生产无副产物的由通式（2）表示的喹唑啉-4-酮衍生物作为医药中间体的材料。
-
公开(公告)号：US07019173B2
公开(公告)日：2006-03-28
申请号：US10433412
申请日：2002-08-22
IPC分类号： C07C211/00
CPC分类号： C07F9/54 , C07B39/00 , C07C17/16 , C07C17/18 , C07C211/29 , C07C251/30 , C07C271/20 , C07F9/5004 , Y02P20/582
摘要： A fluorine compound represented by Formula (1) is provided. The above fluorine compound is effective for introducing a fluorine atom into a compound having an active group such as an oxygen-containing functional group, and it can be used for uses of surface treatment, cleaning and coating. Further, after the fluorination reaction, the above compound is recovered and can be reused as a starting material for producing the above fluorine compound, and it is useful for various fluorination processes. (wherein X represents a nitrogen or phosphorus atom; R0, R1, and R2 represent hydrogen, an alkyl group or aryl group which may have a substituent, and they each may be the same or different; and R0, R1, and R2 may be combined with each other to form a ring).
-
公开(公告)号：US20060089513A1
公开(公告)日：2006-04-27
申请号：US11297408
申请日：2005-12-09
IPC分类号： C07C211/27
CPC分类号： C07F9/54 , C07B39/00 , C07C17/16 , C07C17/18 , C07C211/29 , C07C251/30 , C07C271/20 , C07F9/5004 , Y02P20/582
摘要： A fluorine compound represented by Formula (1) is provided. The above fluorine compound is effective for introducing a fluorine atom into a compound having an active group such as an oxygen-containing functional group, and it can be used for uses of surface treatment, cleaning and coating. Further, after the fluorination reaction, the above compound is recovered and can be reused as a starting material for producing the above fluorine compound, and it is useful for various fluorination processes. (wherein X represents a nitrogen or phosphorus atom; R0, R1, and R2 represent hydrogen, an alkyl group or aryl group which may have a substituent, and they each may be the same or different; and R0, R1, and R2 may be combined with each other to form a ring).
摘要翻译： 提供由式（1）表示的氟化合物。 上述氟化合物有效地将氟原子引入具有活性基团的化合物如含氧官能团，并且其可用于表面处理，清洁和涂覆的用途。 此外，在氟化反应之后，回收上述化合物，可以重复使用作为制备上述氟化合物的原料，可用于各种氟化处理。 （其中X表示氮或磷原子; R 0，R 1，R 2和R 2表示氢，烷基或芳基， 可以具有取代基，并且它们各自可以相同或不同;并且R 0，R 1和R 2可以与 彼此形成一个戒指）。
-
公开(公告)号：US5998566A
公开(公告)日：1999-12-07
申请号：US565346
申请日：1995-11-30
申请人： Takashi Kojima , Takafumi Yoshimura
发明人： Takashi Kojima , Takafumi Yoshimura
CPC分类号： C08G61/10
摘要： The improved phenol derivatives having a phenolic structure as part of the molecular backbone are produced by reacting condensed polycyclic aromatic hydrocarbons, either individually or in combination with unsaturated cyclic aliphatic hydrocarbons, with phenols in the presence of Friedel-Crafts catalysts and have softening points of no more than 150.degree. C., number average molecular weights of 250-800 and phenolic hydroxyl equivalents of 140-850 g/eq. These phenol derivatives are useful either as starting materials for the manufacture of heat-resistant thermosetting resins or as modifiers thereof. They can be produced by reacting the indicated components in the presence of Friedel-Crafts catalysts, typically a mixture of hydrogen fluoride and boron trifluoride, at temperature of 0-350.degree. C.
摘要翻译： 通过在Friedel-Crafts催化剂存在下单独或与不饱和环脂族烃组合的缩合多环芳烃与酚反应制备具有作为分子主链部分的酚结构的改进的酚衍生物，并且软化点为 超过150℃，数均分子量为250-800，酚羟基当量为140-850g / eq。 这些酚衍生物可用作制造耐热热固性树脂的起始原料或其改性剂。 它们可以通过在Friedel-Crafts催化剂（通常是氟化氢和三氟化硼的混合物）的存在下，在0-350℃的温度下使所述组分反应来制备。
-
公开(公告)号：US07642374B2
公开(公告)日：2010-01-05
申请号：US10563088
申请日：2004-07-01
IPC分类号： C07C51/42
CPC分类号： C07C51/363 , C07C63/70
摘要： The present invention provides a process for producing 5-iodo-2-methylbenzoic acid through iodination of 2-methylbenzoic acid, the process including, as essential steps, a reaction step of iodinating 2-methylbenzoic acid in the presence of a microporous compound, iodine, an oxidizing agent, and acetic anhydride, and a purification step including sublimation, distillation, crystallization, or a combination of two or more of these. According to the present invention, 5-iodo-2-methylbenzoic acid, which is useful for producing functional chemicals such as drugs, can be produced at high purity and high yield in a simple manner. Since the production process includes a simple reaction step and a simple separation/purification step, the load of purification is mitigated. In addition, the microporous compound such as a zeolite catalyst which has been separated and recovered from the reaction mixture can be repeatedly employed after performing of a simple treatment. Thus, the production process ensures a long service life of catalysts and high efficiency.
摘要翻译： 本发明提供了通过2-甲基苯甲酸碘化生产5-碘-2-甲基苯甲酸的方法，该方法包括作为必要步骤的步骤，在微孔化合物存在下碘化2-甲基苯甲酸，碘 ，氧化剂和乙酸酐，以及包括升华，蒸馏，结晶或这些中的两种或更多种的组合的纯化步骤。 根据本发明，可以以高纯度和高产率以简单的方式制备可用于制备功能性化学物质如药物的5-碘-2-甲基苯甲酸。 由于生产过程包括简单的反应步骤和简单的分离/纯化步骤，减轻了纯化负荷。 此外，在进行简单处理之后，可以重复使用从反应混合物中分离回收的微孔化合物如沸石催化剂。 因此，生产过程确保催化剂的使用寿命长，效率高。
-
公开(公告)号：US07638652B2
公开(公告)日：2009-12-29
申请号：US12373583
申请日：2007-07-11
申请人： Takafumi Yoshimura , Toshio Hidaka , Norio Fushimi
发明人： Takafumi Yoshimura , Toshio Hidaka , Norio Fushimi
IPC分类号： C07C209/50
CPC分类号： C07C249/02 , C07C251/24
摘要： Provided is a one-step efficient production method for an α,α-difluoroamine of a general formula (1) below from an amide compound. The method is an economical method capable of producing the intended α,α-difluoroamine at high yield by reacting a starting amide compound with carbonyl fluoride and/or oxalyl fluoride under a specific condition.Formula (1)
摘要翻译： 本发明提供从酰胺化合物制备下述通式（1）的α，α-二氟胺的一步高效制备方法。 该方法是能够通过在特定条件下使起始酰胺化合物与碳酰氟和/或草酰氟反应而以高产率生产所需的α，α-二氟胺的经济方法。 公式1）
-
9.发明授权High-purity (fluoroalkyl)benzene derivative and process for producing the same 失效高纯度（氟烷基）苯衍生物及其制备方法公开(公告)号：US07405331B2
公开(公告)日：2008-07-29
申请号：US10512990
申请日：2003-04-24
IPC分类号： C07C22/08
CPC分类号： C07C45/41 , C07B39/00 , C07C29/147 , C07C39/24 , C07C45/45 , C07C45/63 , C07C47/55 , C07C49/80 , C07C51/04 , C07C51/62 , C07C67/307 , C07C211/29 , C07C233/65 , C07C255/50 , C07C63/72 , C07C63/70 , C07C69/76 , C07C33/46
摘要： The process for producing a (fluoroalkyl)benzene derivative according to the present invention comprises a step of reducing the total content of group 3 to group 12 transition metals in an alkylbenzene derivative to 500 ppm or less in terms of metal atoms; a step of halogenating the branched alkyl group of the purified alkylbenzene derivative by a photohalogenation to obtain a (haloalkyl)benzene derivative; and a step of subjecting the (haloalkyl)benzene derivative to a halogen-fluorine exchange using HF in an amount of 10 mol or higher per one mole of the (haloalkyl)benzene derivative. The (fluoroalkyl)benzene derivative produced by the process is reduced in the content of impurities such as residual halogens and residual metals, and is useful as intermediates for functional chemical products for use in applications such as medicines and electronic materials.
摘要翻译： 本发明的（氟代烷基）苯衍生物的制造方法包括使烷基苯衍生物中的第1族第1族过渡金属的含量以金属原子换算为500ppm以下的步骤; 通过光卤化来卤化纯化的烷基苯衍生物的支链烷基以获得（卤代烷基）苯衍生物的步骤; 以及使用每10摩尔（卤代烷基）苯衍生物为10摩尔以上的HF的（卤代烷基）苯衍生物进行卤 - 氟交换的工序。 通过该方法制备的（氟代烷基）苯衍生物的残留卤素和残余金属等杂质含量降低，可用作药物和电子材料等应用中的功能性化学产品的中间体。
-
10.发明授权Pitch with reduced tendency to smoke during spinning and a process for the production of said pitch 失效纺纱过程中吸烟倾向偏小，沥青生产过程中的沥青
公开(公告)号：US5644018A
公开(公告)日：1997-07-01
申请号：US491354
申请日：1995-06-30
摘要： Mesophase pitch that has a softening point of no more than 250.degree. C., a pyridine-insolubles content of no more than 50% and a n-heptane solubles content of 3-10%, with the n-heptane solubles experiencing a weight loss of no more than 15% at 450.degree. C. as measured by thermogravimetry is produced by polymerizing a condensed polycyclic aromatic hydrocarbon or a substance containing it in the presence of HF and BF.sub.3. This mesophase pitch is suppressed satisfactorily in its tendency to smoke during spinning and, additionally, it has a low enough softening point to exhibit outstanding spinnability. Hence, the pitch allows for high-volume spinning to be performed continuously for a prolonged time without causing extensive fouling of the surface of spinning nozzles.
摘要翻译： 软化点不超过250℃的中间相沥青，吡啶不溶物含量不超过50％，正庚烷可溶物含量为3-10％，正庚烷可溶物体重减轻 通过热重分析法测定，在450℃下不超过15％是通过在HF和BF 3存在下聚合稠合的多环芳烃或其含有物质来制备的。 这种中间相沥青在纺丝期间的吸烟倾向令人满意地抑制，此外，它具有足够低的软化点以表现出优异的可纺性。 因此，该间距允许长时间连续地进行高容量纺丝，而不会引起纺丝喷嘴表面的大量污染。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.024 秒)
