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1. 发明授权

US06794548B2 Method of producing 4,4′-biphenol 有权
标题翻译：制备4,4'-联苯酚的方法
公开(公告)号：US06794548B2
公开(公告)日：2004-09-21
申请号：US10685193
申请日：2003-10-14
申请人： Mikio Kawahara , Toyokazu Kitaura
发明人： Mikio Kawahara , Toyokazu Kitaura
IPC分类号： C07C3912
CPC分类号： C07C37/50 , C07C39/15
摘要： A method for producing 4,4′-biphenol, comprising the steps of: preparing serially arranged reaction bathes for two or more steps; and carrying out a debutylation reaction of 3,3′,5,5′-tetra-t-butyl-4,4′-biphenol sequentially in the presence of an acid catalyst in a reaction solvent by supplying at least one kind of phenols selected from the group consisting of phenol, monoalkylphenols, dialkylphenols, and trialkylphenols, in a proportion of at least 0.5 mole part relative to one mole part of 3,3′,5,5′-tetra-t-butyl-4,4′-biphenol, to each reaction bath as a solvent for addition, wherein the number of carbon atoms of alkyl groups in alkylphenols consisting of the monoalkylphenols, dialkylphenols, and trialkylphenols, is each independently in the range of 1 to 4, and wherein a solvent for addition to a reaction bath for the latter step has a smaller average number of alkyl groups than a solvent for addition to a reaction bath for the former step.
摘要翻译：一种制备4,4'-联苯酚的方法，包括以下步骤：制备两个或多个步骤的连续排列的反应洗涤剂; 并在酸催化剂存在下，在反应溶剂中依次进行3,3'，5,5'-四叔丁基-4,4'-联苯酚的丁基化反应，得到至少一种选自由苯酚，单烷基酚，二烷基酚和三烷基苯酚组成的组相对于1摩尔份3,3'，5,5'-四叔丁基-4,4'-联苯酚为至少0.5摩尔份作为添加溶剂的每个反应浴，其中由单烷基酚，二烷基酚和三烷基苯酚组成的烷基苯酚中的烷基的碳原子数各自独立地为1〜4，并且在添加到用于后一步骤的反应浴具有比用于添加到前一步骤的反应浴的溶剂的平均烷基数更少的反应浴。

2. 发明授权

US06313351B1 Process for producing alicyclic monoketones and process for producing alicyclic diketones 有权
标题翻译：生产脂环族单酮的方法和生产脂环族二酮的方法
公开(公告)号：US06313351B1
公开(公告)日：2001-11-06
申请号：US09389079
申请日：1999-09-02
申请人： Norimoto Kiya , Shinsaku Kawasaki , Kenji Ekawa , Kenji Sugiyama , Toyokazu Kitaura
发明人： Norimoto Kiya , Shinsaku Kawasaki , Kenji Ekawa , Kenji Sugiyama , Toyokazu Kitaura
IPC分类号： C07C4562
CPC分类号： C07C45/00 , B01J23/58 , C07C49/417 , C07C49/517 , C07C49/747 , C07C49/753 , C07C315/04 , C07C2601/14 , C07C317/22
摘要： The process for producing alicyclic monoketones (hydroxyphenylcyclohexanone derivatives) according to the present invention comprises hydrogenating substituted bisphenols such as bisphenol A in a solvent in the presence of a palladium/alkali metal catalyst in which palladium and an alkali metal are both supported on a carrier to obtain alicyclic monoketones such as 2-(4-oxocyclohexyl)-2-(4-hydroxyphenyl)propane. The process for producing alicyclic diketones according to the present invention comprises hydrogenating substituted bisphenols such as bisphenol A in a solvent in the presence of a palladium/alkali metal catalyst in which palladium and an alkali metal are both supported on a carrier to obtain alicyclic diketones such as 2,2-bis(4-oxocyclohexyl)propane and 4,4′-bicyclohexanone. The other process for producing alicyclic monoketones according to the present invention comprises hydrogenating biphenols such as bis(4-hydroxyphenyl) in an organic solvent in the presence of a palladium catalyst in which 10 to 30% by weight of palladium is supported on a carrier to obtain alicyclic monoketones such as 4(4′-hydroxyphenyl)cyclohexanone. According to the present invention, alicyclic monoketones or alicyclic diketones can be obtained with high selectivity and in high yields through simple steps, because the process includes only one reaction step to hydrogenate substituted bisphenols under relatively mild conditions.
摘要翻译：本发明的脂环式单酮类（羟基苯基环己酮衍生物）的制造方法包括在钯/碱金属催化剂的存在下，在载体上负载钯/碱金属催化剂的情况下，在溶剂中，氢化取代的双酚，例如双酚A，得到2-（4-氧代环己基）-2-（4-羟基苯基）丙烷等脂环族单酮。根据本发明的制备脂环族二酮的方法包括在钯/碱金属催化剂的存在下在溶剂中将取代的双酚如双酚A氢化，其中钯和碱金属都负载在载体上，以获得脂环族二酮作为2,2-双（4-氧代环己基）丙烷和4,4'-二环己酮。根据本发明的其它生产脂环族单酮的方法包括在钯催化剂存在下，在有机溶剂中，将双酚如双（4-羟基苯基）氢化，其中载体上载有10〜30重量％的钯，得到脂环族单酮如4（4'-羟基苯基）环己酮。根据本发明，可以通过简单的步骤以高选择性和高产率获得脂环族单酮或脂环族二酮，因为该方法仅包括在相对温和的条件下氢化取代的双酚的一个反应步骤。

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