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公开(公告)号：US4906791A
公开(公告)日：1990-03-06
申请号：US232956
申请日：1988-08-16
申请人： Makoto Imanari , Hiroshi Iwane , Takahiro Sugawara , Satoshi Ohtaka , Masashi Inaba , Mitsugi Kataoka
发明人： Makoto Imanari , Hiroshi Iwane , Takahiro Sugawara , Satoshi Ohtaka , Masashi Inaba , Mitsugi Kataoka
CPC分类号： C07C37/14
摘要： A process for preparing p-cumylphenol which comprises reacting phenol and .alpha.-methylstyrene in the presence of an inorganic solid acid catalyst having an acid point of an acid strength Ho of up to -3, for example, activated clay and recovering the aimed p-cumylphenol from the reaction mixture thus obtained by distilling the same while introducing an inert gas such as nitrogen and/or steam into the distillation system is disclosed. The p-cumylphenol thus obtained has a high purity and an improved color compared with those obtained by conventional methods.
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公开(公告)号：US4937392A
公开(公告)日：1990-06-26
申请号：US317956
申请日：1989-03-02
摘要： A process for preparing 4,4'-dihydroxydiphenylmethane, which comprises reacting phenol with formaldehyde in the presence of an acidic catalyst and separating the aimed 4,4'-dihydroxydiphenylmethane from the crude dihydroxydiphenylmethane thus obtained, is disclosed. According to this process, 4,4'-dihydroxydiphenylmethane can be separated from its isomers and oligomers at a high purity and at a high yield, compared with those achieved by known methods. Thus highly useful 4,4'-dihydroxydiphenylmethane can be advantageously prepared on an industrial scale.
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公开(公告)号：US4568778A
公开(公告)日：1986-02-04
申请号：US699130
申请日：1985-02-07
IPC分类号： B01J21/00 , B01J29/00 , B01J31/00 , C07B61/00 , C07C27/00 , C07C37/14 , C07C39/06 , C07C67/00
CPC分类号： C07C37/14
摘要： A process for producing tert-amylphenols is described, comprising reacting isoamylene with phenols in the presence of an inorganic solid acid catalyst or an acidic ion exchange resin catalyst. This process permits efficient production of tert-amylphenols, i.e., 2,4-di-tert-amylphenol and p-tert-amylphenol. These tert-amylphenols are useful as starting materials for preparation of color formers for color photography, additives for resins, oil-soluble dyes, additives for lubricating oils, etc.
摘要翻译： 描述了生产叔戊基酚的方法，包括在无机固体酸催化剂或酸性离子交换树脂催化剂存在下使异戊烯与酚反应。 该方法可有效生产叔戊基苯酚，即2,4-二叔戊基苯酚和对叔戊基苯酚。 这些叔戊基酚可用作制备用于彩色摄影的成色剂，树脂添加剂，油溶性染料，润滑油添加剂等的起始原料。
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公开(公告)号：US4564713A
公开(公告)日：1986-01-14
申请号：US690614
申请日：1985-01-11
申请人： Makoto Imanari , Hiroshi Iwane , Takahiro Sugawara
发明人： Makoto Imanari , Hiroshi Iwane , Takahiro Sugawara
IPC分类号： B01J31/00 , B01J31/04 , C07B61/00 , C07C27/00 , C07C37/11 , C07C39/15 , C07C67/00 , C07C39/14
CPC分类号： C07C37/11
摘要： A process for producing 4,4'-dihydroxydiphenyls is disclosed, which comprises dimerizing alkylphenols in an aqueous solution of pH 7 to 12 containing a surfactant in the presence of an oxidizing agent, wherein the dimerization is conducted in the presence of a copper compound and a basic boron compound or a mixture of a basic substance and a boron compound. According to this process, the desired 4,4'-dihydroxydiphenyls can be easily obtained in high yield.
摘要翻译： 公开了一种制备4,4'-二羟基联苯的方法，其包括在氧化剂存在下，在含有表面活性剂的pH7至12的水溶液中使烷基酚二聚化，其中二聚在铜化合物存在下进行， 碱性硼化合物或碱性物质与硼化合物的混合物。 根据该方法，可以容易地以高收率获得所需的4,4'-二羟基二苯基。
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公开(公告)号：US5225593A
公开(公告)日：1993-07-06
申请号：US707946
申请日：1991-05-28
申请人： Makoto Imanari , Katufumi Kujira , Hiroshi Iwane
发明人： Makoto Imanari , Katufumi Kujira , Hiroshi Iwane
IPC分类号： C07C51/235
CPC分类号： C07C51/235
摘要： A process for preparing pyruvate in high yield is disclosed, comprising reacting propylene glycol with molecular oxygen in an aqueous solution in the presence of a platinum catalyst containing a metallic component selected from the group consisting of lead, thallium, and cadmium while controlling the pH of the reaction mixture between 7 and 9. The crude pyruvate can be purified by treating with activated carbon in the presence of water.
摘要翻译： 公开了一种以高产率制备丙酮酸盐的方法，包括在含有选自铅，铊和镉的金属组分的铂催化剂的存在下，在水溶液中使丙二醇与分子氧反应，同时控制 反应混合物在7和9之间。粗制丙酮酸盐可以通过在水存在下用活性炭处理来纯化。
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公开(公告)号：US4937382A
公开(公告)日：1990-06-26
申请号：US288961
申请日：1988-12-23
申请人： Katufumi Kujira , Hiroshi Iwane , Makoto Imanari
发明人： Katufumi Kujira , Hiroshi Iwane , Makoto Imanari
IPC分类号： C07B61/00 , B01J25/00 , B01J25/02 , C07C67/00 , C07C213/00 , C07C213/02 , C07C215/68 , C07C215/70
CPC分类号： C07C213/02
摘要： A process for preparing 2-(o-aminophenyl)ethanol comprising reducing 2-(o-nitrophenyl)ethanol with hydrogen in the presence of a Raney nickel catalyst is described, in which said reducing is carried out in the presence of a small amount of an alkali compound. The Raney nickel catalyst exhibits improved activity to achieve an increased reaction rate.
摘要翻译： 描述了一种制备2-（邻氨基苯基）乙醇的方法，其包括在阮内镍催化剂存在下用氢还原2-（邻硝基苯基）乙醇，其中所述还原在少量 碱性化合物。 阮内镍催化剂表现出改善的活性以实现增加的反应速率。
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公开(公告)号：US5155263A
公开(公告)日：1992-10-13
申请号：US767359
申请日：1991-09-30
申请人： Makoto Imanari , Hiroshi Iwane , Masashi Suzuki , Naoki Suzuki
发明人： Makoto Imanari , Hiroshi Iwane , Masashi Suzuki , Naoki Suzuki
IPC分类号： B01J23/60 , B01J23/42 , B01J23/62 , C07B61/00 , C07C51/235 , C07C59/185
CPC分类号： C07C51/235
摘要： A process for preparing .alpha.-ketobutyric acid comprising contacting 1,2-butanediol with molecular oxygen in the presence of a platinum catalyst is disclosed. The process produces .alpha.-ketobutyric acid in high yield at low cost.
摘要翻译： 公开了一种制备α-酮丁酸的方法，包括在铂催化剂存在下使1,2-丁二醇与分子氧接触。 该方法以低成本高产率生产α-酮丁酸。
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公开(公告)号：US4757152A
公开(公告)日：1988-07-12
申请号：US796739
申请日：1985-11-12
IPC分类号： C07B61/00 , B01J23/00 , C07D209/08
CPC分类号： C07D209/08
摘要： A process for producing an indole by catalytic reaction of a 2-(o-aminoaryl)ethanol, said reaction being carried out by heating in a liquid phase in the presence of an alkali metal using a catalyst containing a metal selected from the group consisting of a platinum-group metal, nickel and copper.The process is industrially advantageous in that indoles are produced in high yield.
摘要翻译： 一种通过2-（邻氨基芳基）乙醇的催化反应制备吲哚的方法，所述反应是通过使用含有选自以下的金属的催化剂在碱存在下在液相中加热进行的： 铂族金属，镍和铜。 该工艺在工业上是有利的，因为以高产率生产吲哚。
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公开(公告)号：US4659841A
公开(公告)日：1987-04-21
申请号：US751865
申请日：1985-07-05
IPC分类号： C07D209/08
CPC分类号： C07D209/08 , Y02P20/582
摘要： A process for preparing indoles in high yield by reacting anilines and 1,2-glycols in a liquid phase in the presence of a cadmium bromide or iodide/potassium bromide or iodide catalyst. The used catalyst can be easily recovered and when reused, exhibits excellent performance.
摘要翻译： 在溴化镉或碘化钾/溴化钾或碘化物催化剂的存在下，使苯胺和1,2-二醇在液相中反应，以高产率制备吲哚的方法。 所使用的催化剂可以容易地回收并且在重复使用时表现出优异的性能。
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公开(公告)号：US4263457A
公开(公告)日：1981-04-21
申请号：US67550
申请日：1979-08-17
申请人： Makoto Takeda , Eiji Taniyama , Yuji Ozawa , Makoto Imanari , Kunimasa Takahashi , Hiroshi Iwane
发明人： Makoto Takeda , Eiji Taniyama , Yuji Ozawa , Makoto Imanari , Kunimasa Takahashi , Hiroshi Iwane
IPC分类号： C07B35/04 , B01J23/00 , B01J31/00 , C07B31/00 , C07B61/00 , C07C17/00 , C07C29/143 , C07C29/145 , C07C45/00 , C07C45/46 , C07C45/63 , C07C45/65 , C07C49/233 , C07C49/792 , C07C51/14 , C07C51/377 , C07C57/58 , C07C67/00 , C07C29/00
CPC分类号： B01J21/063 , B01J21/066 , B01J23/30 , C07C17/35 , C07C17/357 , C07C201/08 , C07C221/00 , C07C253/30 , C07C45/002 , C07C45/46 , C07C45/63 , C07C45/65 , C07C49/792 , C07C51/14 , C07C51/377 , C07C2101/14
摘要： A process for producing a halobiphenyl derivative represented by the following formula (I) comprises dehydrogenating a cyclohexylhalobenzene represented by the following formula (II) under such conditions that substantially no dehalogenation occurs. ##STR1## wherein X represents a halogen atom, and each of R.sup.1 and R.sup.2 independently represents a group represented by the formula ##STR2## wherein A represents carboxyl or an alkoxycarbonyl group and R represents a hydrogen atom or a lower alkyl group; an alkylcarbonyl; alkenyl; alkynyl; alkyl; aryl; arylcarbonyl; hydroxyalkyl; cyanoalkyl or cyanoalkenyl group.
摘要翻译： 用于制备由下式（I）表示的卤代联苯衍生物的方法包括在基本上不发生脱卤的条件下使由下式（II）表示的环己基卤代苯脱氢。 （I）其中X表示卤素原子，R 1和R 2各自独立地表示由下式表示的基团：其中A表示羧基或烷氧基羰基，R表示氢原子 或低级烷基; 烷基羰基; 烯基; 炔基; 烷基; 芳基; 芳基羰基; 羟烷基 氰基烷基或氰基烯基。
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