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公开(公告)号：US06365788B1
公开(公告)日：2002-04-02
申请号：US09625934
申请日：2000-07-26
IPC分类号： C07C3912
CPC分类号： C07C43/23 , C07C37/001 , C07C39/12 , C07C39/215
摘要： The present invention relates to the preparation of substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-hydroxyaliphatics such as 1,2-bis(4-hydroxyphenyl)-2-hydroxypropanes by reacting substituted or unsubstituted 1,2-bis(4-hydroxyphenyl)-halogen substituted aliphatics such as 1,2-bis(4-hydroxyphenyl)-2-chloropropanes in the presence of a base and water.
摘要翻译： 本发明涉及取代或未取代的1,2-双（4-羟基苯基） - 羟基芳族化合物如1,2-双（4-羟苯基）-2-羟基丙烷，通过取代或未取代的1,2-双（ 4-羟基苯基） - 卤素取代的脂族化合物如1,2-双（4-羟基苯基）-2-氯丙烷在碱和水的存在下反应。
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62.发明授权Preparation of 4,4'-dihydroxy-alpha-alkylstilbenes and 4,4'-dihydroxy-alpha, alpha'-dialkylstilbenes 失效制备4,4'-二羟基-α-烷基茋和4,4'-二羟基-α，α'-二烷基茋
公开(公告)号：US5414150A
公开(公告)日：1995-05-09
申请号：US162517
申请日：1993-12-03
IPC分类号： C07C37/20 , C07C39/215
CPC分类号： C07C39/215 , C07C37/20
摘要： 4,4'-Dihydroxy-alpha-alkylstilbenes of high purity are prepared by reacting at a temperature of from about -20.degree. C. to about 20.degree. C. a mixture of (1) at least one alpha-haloketone, (2) at least one phenolic hydroxyl-containing compound or alkoxy-containing aromatic compound, and (3) at least one strong protonic acid or Lewis acid; such that the mole ratio of phenolic hydroxyl-containing compound or alkoxy-containing aromatic compound:alpha-haloketone(s) is from 0.1:1 to 1.9:1, and the mole ratio of phenolic hydroxyl-containing compound or alkoxy-containing aromatic compound:alpha-haloketone(s):strong protonic acid or Lewis acid is from about 0.1:1:0.0026 to about 1.9:1:0.95. The high purity 4,4'-dihydroxy-alpha-alkylstilbenes are useful for the advancement of epoxy resins, for the preparation of phenoxy resins and for the preparation of epoxy resins.
摘要翻译： 通过在约-20℃至约20℃的温度下反应制备（1）至少一种α-卤代酮的混合物，（2）至少一种α-卤代酮， 至少一种含酚羟基的化合物或含烷氧基的芳族化合物，和（3）至少一种强质子酸或路易斯酸; 使得含酚羟基的化合物或含烷氧基的芳族化合物：α-卤代酮的摩尔比为0.1:1至1.9:1，并且含酚羟基的化合物或含烷氧基的芳族化合物的摩尔比 ：α-卤代酮：强质子酸或路易斯酸为约0.1：1：0.0026至约1.9：1：0.95。 高纯度4,4'-二羟基-α-烷基芪可用于环氧树脂的前进，苯氧基树脂的制备和环氧树脂的制备。
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公开(公告)号：US3836674A
公开(公告)日：1974-09-17
申请号：US37299973
申请日：1973-06-25
申请人： CHEMETRON CORP
CPC分类号： C07C37/88 , A61K47/10 , C07B2200/09 , C07C39/215
摘要： IN AN ENVIRONMENT IN WHICH ISOMERISM OCCURS, DIETHYLSTIBESTROL IS STABILIZED IN THE ACTIVE TRANS FORM BY THE PRESENCE OF A STABILIZING QUANTITY OF A COMPOUND OF THE FORMULA:
R1,R2-HYDROQUINONE
WHEREIN R1 IS HYDROGEN OR A TERTIARY LOWERALKYL GROUP AND R2 IS A TERTIARY LOWERALKYL GROUP.-
公开(公告)号：US3808338A
公开(公告)日：1974-04-30
申请号：US17534771
申请日：1971-08-26
申请人： LILLY CO ELI
CPC分类号： C07C37/88 , A23K20/168 , C07B2200/09 , C07C39/215
摘要： DIETHYLSTIBESTROL CONTAINED IN ANIMAL FEED FORMULATINS IS PREVENT FROM ISOMERIZING FROM THE ACTIVE TRANS FORM TO THE INACTIVE CIS FORM BY ADDING TO THE FORMULATION AND ISOMERIZATION-INHIBITING MIXTURE COMPRISING A BASE AND A COMPOUND CHOSEN FROM A DEFINED CLASS OF ALDEHYDES, KETONES, AND ALDEHYDRIC REDUCING SUGARS.
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公开(公告)号：US3624162A
公开(公告)日：1971-11-30
申请号：US3624162D
申请日：1967-08-15
申请人： WACKER CHEMIE GMBH
发明人： SIEBER ROLF
IPC分类号： C07C37/11 , C07C37/20 , C07C39/215 , C07C37/00
CPC分类号： C07C37/20 , C07C37/00 , C07C37/002 , C07C39/367 , C07C39/21 , C07C39/215 , C07C39/373
摘要： This invention relates to 4,4'' -dihydroxy stilbenes, and it has for its object to provide a simple and efficient process for making such compounds.
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公开(公告)号：US2914561A
公开(公告)日：1959-11-24
申请号：US67647757
申请日：1957-08-06
申请人： WM S MERRELL CO
IPC分类号： C07C33/025 , C07C39/215
CPC分类号： C07C33/025 , C07C39/215
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公开(公告)号：US2796435A
公开(公告)日：1957-06-18
申请号：US48871255
申请日：1955-02-16
申请人： HOFFMANN LA ROCHE
IPC分类号： C07C39/215
CPC分类号： C07C39/215
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公开(公告)号：US2488501A
公开(公告)日：1949-11-15
申请号：US4913548
申请日：1948-09-13
申请人： DOW CHEMICAL CO
发明人： MOYLE CLARENCE L
CPC分类号： C07C39/215
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