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1. 发明申请

WO2007044169A1 PROCESSES FOR THE PRODUCTION OF HYDROXYALKYLMALEIMIDES 审中-公开
标题翻译：用于生产羟基甘氨酸的方法
公开(公告)号：WO2007044169A1
公开(公告)日：2007-04-19
申请号：PCT/US2006/035386
申请日：2006-09-13
申请人： ALBEMARLE CORPORATION , CHENG, Chi, Hung , SABAHI, Mahmood , SULZER, Gerry, M. , RAMACHANDRAN, Venkataraman
发明人： CHENG, Chi, Hung , SABAHI, Mahmood , SULZER, Gerry, M. , RAMACHANDRAN, Venkataraman
IPC分类号： C07D207/44
CPC分类号： C07D207/452
摘要： A process is provided for producing high purity hydroxyalkylmaleimides in high yields. Hydroxyalkylmaleimides can be represented by: Formula (I) wherein R is an aliphatic, substituted aliphatic, cycloaliphatic or substituted cycloaliphatic linkage having 1 to 12 carbon atoms.
摘要翻译：提供了以高产率生产高纯度羟烷基马来酰亚胺的方法。羟烷基马来酰亚胺可以由下式表示：式（I）其中R是具有1至12个碳原子的脂族，取代的脂族，脂环族或取代的脂环族连接。

2. 发明申请

WO1996022959A1 PREPARATION OF OPTICALLY ACTIVE ALIPHATIC CARBOXYLIC ACIDS 审中-公开
标题翻译：光活性二羧酸的制备
公开(公告)号：WO1996022959A1
公开(公告)日：1996-08-01
申请号：PCT/US1996000986
申请日：1996-01-24
申请人： ALBEMARLE CORPORATION
发明人： ALBEMARLE CORPORATION , PATIL, Deepak, R. , RAMACHANDRAN, Venkataraman
IPC分类号： C07C51/487
CPC分类号： C07B57/00 , C07C51/487
摘要： A process for the separation of a racemic mixture of certain aliphatic carboxylic acids or esters thereof is disclosed. The process comprises: (i) forming a diastereomeric salt by reaction comprising said racemic mixture of a C1 to C6 linear or branched aliphatic carboxylic acid and an amount of an N-alkyl-D-glucamine that is sufficient to react with one of the enantiomers of the racemic mixture; (ii) precipitating from the reaction solution formed in step (i) the diastereomeric salt; (iii) separating said precipitated diastereomeric salt; (iv) decomposing the salt into its enantiomeric component and its organic base component; and (v) isolating a substantially pure enantiomer from said decomposed salt.
摘要翻译：公开了分离某些脂族羧酸或其酯的外消旋混合物的方法。该方法包括：（i）通过包含C1-C6直链或支链脂族羧酸的外消旋混合物和足以与一种对映异构体反应的N-烷基-D-葡糖胺的量的反应形成非对映异构体盐的外消旋混合物; （ii）从步骤（i）中形成的反应溶液中沉淀出非对映体盐; （iii）分离所述沉淀的非对映体盐; （iv）将盐分解成其对映体组分及其有机碱组分; 和（v）从所述分解的盐分离基本上纯的对映异构体。

3. 发明申请

WO1997015542A1 PROCESS FOR PURIFYING A 2,6-DIALKYLPHENOL 审中-公开
标题翻译：净化2,6-二氯苯酚的方法
公开(公告)号：WO1997015542A1
公开(公告)日：1997-05-01
申请号：PCT/US1996017113
申请日：1996-10-24
申请人： ALBEMARLE CORPORATION
发明人： ALBEMARLE CORPORATION , RAMACHANDRAN, Venkataraman
IPC分类号： C07C37/86
CPC分类号： C07C37/74 , C07C37/685 , C07C37/72 , C07C37/86 , Y10S203/17 , C07C39/06
摘要： A process for purifying impure 2,6-diisopropylphenol (DIP) mixtures having lower and higher boiling phenolic impurities is described. The process involves washing the mixture with aqueous alkali metal hydroxide solution in an inert atmosphere and separating the aqueous and organic phases, washing the resulting organic phase with water, and then subjecting the water-washed organic phase to distillation in an inert environment to recover purified DIP. Since only one distillation is required rather than two, the development of impurities in the DIP caused by in situ oxidation reactions at elevated temperatures due to the inevitable presence of traces of air in commercial distillation facilities is reduced to acceptable levels.
摘要翻译：描述了用于纯化具有较低和较高沸点酚类杂质的不纯的2,6-二异丙基苯酚（DIP）混合物的方法。该方法包括在惰性气氛中用碱金属氢氧化物水溶液洗涤混合物，分离水相和有机相，用水洗涤所得有机相，然后将水洗有机相在惰性环境中进行蒸馏以回收纯化的蘸。由于仅需要一次蒸馏而不是两次蒸馏，由于在商业蒸馏设备中不可避免地存在空气的痕量，在高温下由于原位氧化反应引起的DIP杂质的发展降低到可接受的水平。

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