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公开(公告)号：US6077971A
公开(公告)日：2000-06-20
申请号：US204239
申请日：1998-12-03
申请人： Jun Takehara , Shuji Ichikawa , Hiroshi Iwane , Hirotaka Ryutou , Kenichi Sugimoto , Toshihiko Yahata
发明人： Jun Takehara , Shuji Ichikawa , Hiroshi Iwane , Hirotaka Ryutou , Kenichi Sugimoto , Toshihiko Yahata
IPC分类号： C07C319/24 , C07C319/28 , C07C323/58 , C07C227/40 , C07C227/14
CPC分类号： C07C319/24 , C07C319/28
摘要： Disclosed is a method for purifying homocystine comprising treating crude homocystine with a base, a method for purifying homocystine comprising recovering homocystine by neutralizing an alkaline aqueous solution of crude homocystine with an acid, and a homocystine powder containing 1,000 ppm or less of a polysulfide.
摘要翻译： 公开了一种纯化同型半胱氨酸的方法，包括用碱处理粗同型半胱氨酸，纯化同型胱氨酸的方法，包括通过用酸中和粗同质胱氨酸的碱性水溶液和含有1,000ppm或更少的多硫化物的高半胱氨酸粉末回收高胱氨酸。
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公开(公告)号：US5847205A
公开(公告)日：1998-12-08
申请号：US975854
申请日：1997-11-21
申请人： Jun Takehara , Shuji Ichikawa , Hiroshi Iwane
发明人： Jun Takehara , Shuji Ichikawa , Hiroshi Iwane
IPC分类号： C07C319/24 , C07C323/58 , C07C315/00
CPC分类号： C07C319/24
摘要： Homocystine is produced by heating methionine in the presence of sulfuric acid and a hydrogen halide.
摘要翻译： 同型半胱氨酸通过在硫酸和卤化氢的存在下加热甲硫氨酸而产生。
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公开(公告)号：US5498789A
公开(公告)日：1996-03-12
申请号：US348116
申请日：1994-11-28
CPC分类号： C07C68/005
摘要： The present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide and oxygen using a catalyst system for suppressing the production of aryl aromatic o-hydroxycarboxylate as a by-product. The catalyst system consists of the following compounds:(A) at least one selected from palladium and palladium compounds;(B) at least one selected from lead compounds; and(C) at least one halide selected from quaternary ammonium halides and quaternary phosphonium halides; and if required,(D) at least one selected from copper and copper compounds.The method of the present invention can increase the yield of an aromatic carbonate per palladium (the turnover number of palladium).
摘要翻译： 本发明涉及通过芳香族羟基化合物，一氧化碳和氧气的反应来制造芳香族碳酸酯的方法，该催化剂体系用于抑制作为副产物的芳基芳族邻羟基羧酸酯的生产。 催化剂体系由以下化合物组成：（A）选自钯和钯化合物中的至少一种; （B）选自铅化合物中的至少一种; 和（C）选自季铵卤化物和季鏻卤化物的至少一种卤化物; 如果需要，（D）选自铜和铜化合物中的至少一种。 本发明的方法可以提高每钯的芳族碳酸酯的收率（钯的转换数）。
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公开(公告)号：US5196598A
公开(公告)日：1993-03-23
申请号：US779053
申请日：1991-10-18
申请人： Hiroshi Iwane , Takahiro Sugawara , Naoki Suzuki , Kimiko Kaneko
发明人： Hiroshi Iwane , Takahiro Sugawara , Naoki Suzuki , Kimiko Kaneko
IPC分类号： B01J23/14 , B01J23/75 , B01J23/755 , B01J27/053 , B01J27/128 , B01J27/135 , B01J27/138 , B01J27/18 , B01J27/185 , B01J27/232 , B01J27/25 , B01J27/26 , B01J31/04 , B01J31/22 , C07B61/00 , C07C407/00 , C07C409/08
CPC分类号： C07C409/08 , C07C407/00
摘要： A process for producing a polyhydroperoxy aromatic compound by oxidation of an aromatic hydrocarbon, e.g., 4,4'-diisopropylbiphenyl and 4,4'-diisopropylnaphthalene, with molecular oxygen is disclosed, in which the oxidation is carried out in the presence of a metal ion selected from cobalt, nickel, zinc and lead ions. Even in using a reaction apparatus made of an iron-containing metal generally employed in industry, a high conversion of secondary alkyl groups can be reached, and the desired polyhydroperoxy aromatic compound can be obtained in a high yield.
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公开(公告)号：US5175352A
公开(公告)日：1992-12-29
申请号：US817347
申请日：1992-01-06
申请人： Hiroshi Iwane , Takahiro Sugawara
发明人： Hiroshi Iwane , Takahiro Sugawara
IPC分类号： C07C51/265
CPC分类号： C07C51/265
摘要： A process for preparing 2,6-naphthalenedicarboxylic acid comprising oxidation reaction of 2,6-diisopropylnaphthalene or an oxidation product thereof with molecular oxygen in a solvent containing an aliphatic carboxylic acid in the presence of a catalyst comprising cobalt and manganese as heavy metals and a bromine compound is disclosed, in which said oxidation reaction is carried out in the presence of at least one nitrogen-containing compound selected from the group consisting of a pyridine compound, ammonia, a carboxylic acid ammonium salt, urea, a urea derivative, an amine, and a carboxylic acid amide. 2,6-Naphthalenedicarboxylic acid can be obtained at higher purity and in increased yield.
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公开(公告)号：US5019656A
公开(公告)日：1991-05-28
申请号：US485482
申请日：1990-02-27
申请人： Hiroshi Iwane , Takahiro Sugawara , Naoki Suzuki
发明人： Hiroshi Iwane , Takahiro Sugawara , Naoki Suzuki
IPC分类号： C07C37/20
CPC分类号： C07C37/20 , C07C37/115
摘要： A process for preparing p-hydroxybenzyl alcohol or a derivative thereof comprising reacting a phenol and a formaldehyde source under a basic condition is disclosed, wherein the reaction is carried out in an alcoholic organic solvent in the presence of a crown ether. The process achieves high selectivity toward the para position without involving high cost.
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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：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：US4329507A
公开(公告)日：1982-05-11
申请号：US111978
申请日：1980-01-14
申请人： Makoto Takeda , Masayuki Uchide , Hiroshi Iwane
发明人： Makoto Takeda , Masayuki Uchide , Hiroshi Iwane
IPC分类号： C07C1/24 , C07C1/30 , C07C17/14 , C07C17/25 , C07C17/35 , C07C29/143 , C07C33/50 , C07C45/00 , C07C49/796 , C07C51/09 , C07C51/14 , C07D311/82 , C07C49/794
CPC分类号： C07D311/82 , C07C1/24 , C07C1/30 , C07C17/14 , C07C17/25 , C07C17/35 , C07C29/143 , C07C45/004 , C07C49/796 , C07C51/09 , C07C51/14 , C07C2103/18 , C07C2521/04 , C07C2523/04
摘要： New substituted aryl ethylenes are disclosed which are produced by dehydration of the corresponding .alpha.- or .beta.-(substituted aryl)ethyl alcohols or by dehydrohalogenation of the corresponding .alpha.- or .beta.-(substituted aryl)ethyl halides.
摘要翻译： 公开了通过相应的α-或β-（取代的芳基）乙醇的脱水或相应的α-或β-（取代的芳基）乙基卤化物的脱卤化氢产生的新的取代的芳基乙烯。
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公开(公告)号：US4261904A
公开(公告)日：1981-04-14
申请号：US68288
申请日：1979-08-20
申请人： Makoto Takeda , Hiroshi Iwane , Takashi Hashimoto
发明人： Makoto Takeda , Hiroshi Iwane , Takashi Hashimoto
CPC分类号： C11B9/0076 , C07C45/49 , C07D307/20
摘要： A tetrahydrofuranol compound of the general formula: ##STR1## wherein R is H or or tautomer thereof; and a method for preparing the same.
摘要翻译： 其中R为H或其互变异构体的通式如下的四氢呋喃醇化合物： 及其制备方法。
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