Method of Crystallization of Bicalutamide
    1.
    发明申请
    Method of Crystallization of Bicalutamide 失效
    比卡鲁胺结晶方法

    公开(公告)号:US20070238900A1

    公开(公告)日:2007-10-11

    申请号:US11571956

    申请日:2005-07-13

    IPC分类号: C07C261/04

    CPC分类号: C07C315/06 C07C317/46

    摘要: The present invention provides a method of crystallization of bicalutamide comprising adding an acetone solution containing bicalutamide to water; crystals of bicalutamide wherein particle size distribution of the crystals is 1 to 10 μm of Dp10, 10 to 25 μm of Dp50 and 25 to 100 μm of Dp90, and the crystals are obtainable by the method described above; and crystals of bicalutamide, wherein particle size distribution of the crystals is 1 to 3 μm of Dp10, 2 to 5 μm of Dp50 and 5 to 15 μm of Dp90.

    摘要翻译: 本发明提供了比卡鲁胺的结晶方法,包括将含有比卡鲁胺的丙酮溶液加入水中; 其中,结晶的粒径分布为Dp 10〜10μm,Dp <50> 10〜25μm,Dp <! - SIPO 2〜5μm,Dp < SUB> 90

    Process for recovering 1,3-dimethyl-2-imidazolidinone
    2.
    发明授权
    Process for recovering 1,3-dimethyl-2-imidazolidinone 失效
    回收1,3-二甲基-2-咪唑啉酮的方法

    公开(公告)号:US07132548B2

    公开(公告)日:2006-11-07

    申请号:US11129357

    申请日:2005-05-16

    IPC分类号: C07D233/32

    CPC分类号: C07D233/32

    摘要: The present invention provides a process for recovering 1,3-dimethyl-2-imidazolidinone comprising extracting 1,3-dimethyl-2-imidazolidinone from an aqueous solution containing it with n-butanol in the presence of an inorganic salt to obtain n-butanol layer and, subjecting the n-butanol layer to distillation.As 1,3-dimethyl-2-imidazolidinone can be recoverable at high purity from an aqueous solution containing 1,3-dimethyl-2-imidazolidinone easily and efficiently without using alkali, the present process is industrially advantageous.

    摘要翻译: 本发明提供一种回收1,3-二甲基-2-咪唑啉酮的方法,其包括在无机盐存在下,从含有正丁醇的水溶液中提取1,3-二甲基-2-咪唑啉酮,得到正丁醇 层,并使正丁醇层进行蒸馏。 由于1,3-二甲基-2-咪唑啉酮可以在不使用碱的情况下容易且有效地从含有1,3-二甲基-2-咪唑啉酮的水溶液中以高纯度回收,因此本工艺在工业上是有利的。

    Process for producing tert-butyl 4′-methyl-2-biphenylcarboxlate
    4.
    发明授权
    Process for producing tert-butyl 4′-methyl-2-biphenylcarboxlate 失效
    制备4'-甲基-2-联苯羧酸叔丁酯的方法

    公开(公告)号:US06369266B1

    公开(公告)日:2002-04-09

    申请号:US09530882

    申请日:2000-05-08

    IPC分类号: C07C6976

    CPC分类号: C07C67/04 C07C69/76

    摘要: A process for preparing tert-butyl 4′-methyl-2-biphenylcarboxylate characterized in that 4′-methyl-2-biphenylcarboxylic acid is reacted with isobutene in the presence of an acid catalyst. According to the present invention, tert-butyl 4′-methyl-2-biphenylcarboxylate having high quality can be conveniently and industrially advantageously prepared in a high yield under mild reaction conditions such as ambient temperatures without complicated procedures or any hazardous solvents.

    摘要翻译: 一种制备4'-甲基-2-联苯羧酸叔丁酯的方法,其特征在于4'-甲基-2-联苯基羧酸与异丁烯在酸催化剂存在下反应。 根据本发明,具有高质量的4'-甲基-2-联苯羧酸叔丁酯可以在温和的反应条件例如环境温度下,无需复杂的方法或任何有害溶剂,以高产率方便地和工业上有利地制备。

    Synthesis of amine derivatives
    5.
    发明授权
    Synthesis of amine derivatives 失效
    胺衍生物的合成

    公开(公告)号:US4536599A

    公开(公告)日:1985-08-20

    申请号:US90479

    申请日:1979-11-01

    摘要: An amine of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each hydrogen, alkyl or the like and n is 1, 2 or 3, including .alpha.-phenyl-.beta.-(p-tolyl)-ethylamine, which is useful as an optically resolving agent, an intermediate of medicines and the like, is effectively produced by a novel process comprising hydrolysis of the corresponding nitrile of the formula, ##STR2## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are the same as above, followed by alkali-decomposition of the resulting amide of the formula, ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are the same as above. An amide including the above one is effectively produced by hydrolysis of the corresponding nitrile in the presence of a base and hydrogen peroxide using an organic quaternary ammonium salt and/or a tertiary amine as a catalyst.

    摘要翻译: 其中R 1,R 2,R 3,R 4和R 5各自为氢,烷基等,n为1,2或3,包括α-苯基-β-(对甲苯基) - 乙胺 ,其可用作光学拆分剂,药物中间体等,通过包括水解相应的腈的新方法,其中R1,R2,R3,R4,R5和n 与上述相同,然后将所得到的式的酰胺碱分解,其中R1,R2,R3,R4,R5和n与上述相同。 包括上述酰胺的酰胺通过使用有机季铵盐和/或叔胺作为催化剂在碱和过氧化氢的存在下水解相应的腈而有效地产生。

    Process for preparing tert-alkyl ester from carboxylic acid
    6.
    发明授权
    Process for preparing tert-alkyl ester from carboxylic acid 有权
    从羧酸制备叔烷基酯的方法

    公开(公告)号:US06333430B1

    公开(公告)日:2001-12-25

    申请号:US09561993

    申请日:2000-05-02

    IPC分类号: C07C6704

    摘要: A process for preparing a tert-alkyl carboxylic acid ester represented by the formula (III): wherein R1 is an organic group; and each of R2 and R3 is independently an alkyl group having 1 to 4 carbon atoms, comprising reacting a carboxylic acid represented by the formula (I): R1—COOH  (I) wherein R1 is as defined above, with a vinylidene compound represented by the formula (II): wherein R2 and R3 are as defined above, in the presence of a phosphorus halide. The tert-alkyl carboxylic acid ester can be used as intermediates for pharmaceuticals such as antibiotics.

    摘要翻译: 一种制备由式(III)表示的叔烷基羧酸酯的方法:其中R1是有机基团; 其中R 2和R 3各自独立地为具有1至4个碳原子的烷基,包括使由式(I)表示的羧酸:其中R 1如上定义,与由式(II)表示的亚乙烯基化合物反应: 其中R2和R3如上定义,在卤化磷存在下。 叔烷基羧酸酯可以用作药物如抗生素的中间体。

    Process for preparing 2-cyclopentenone derivatives
    8.
    发明授权
    Process for preparing 2-cyclopentenone derivatives 失效
    2-环戊烯酮衍生物的制备方法

    公开(公告)号:US4496767A

    公开(公告)日:1985-01-29

    申请号:US543152

    申请日:1983-10-18

    摘要: A novel process for preparing 2-cyclopentenones of the formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl or alkenyl and R.sub.2 is alkyl, alkenyl, alkynyl, cycloalkyl, aryl or aralkyl, which comprises esterifying a mixture of a 3-hydroxy-4-cyclopentenone of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are each as defined above and a 4-hydroxy-2-cyclopentenone of the formulas: ##STR3## wherein R.sub.1 and R.sub.2 are each as defined above with an aliphatic carboxylic acid to give a mixture of the 4-hydroxy-2-cyclopentenone (III) and the cyclopentenone ester of the formula: ##STR4## wherein R.sub.1 and R.sub.2 are each as defined above and R is hydrogen or C.sub.1 -C.sub.4 alkyl and subjecting the resulting mixture to reduction.

    摘要翻译: 一种制备下式的2-环戊烯酮的新方法:其中R1是氢,烷基或烯基,R2是烷基,烯基,炔基,环烷基,芳基或芳烷基,其包括将3- (II)的羟基-4-环戊烯酮,其中R 1和R 2各自如上所定义,和下式的4-羟基-2-环戊烯酮:其中R 1和R 2各自为 (III)和下式的环戊烯酮的混合物:其中R 1和R 2各自如上所定义,R是氢原子 或C 1 -C 4烷基,并将所得混合物还原。

    METHOD FOR PRODUCING N-METHACRYLOYL-4-CYANO-3-TRIFLUOROMETHYLANILINE
    9.
    发明申请
    METHOD FOR PRODUCING N-METHACRYLOYL-4-CYANO-3-TRIFLUOROMETHYLANILINE 失效
    生产N-甲基丙烯酰基-4-氰基-3-三氟甲基苯胺的方法

    公开(公告)号:US20100249446A1

    公开(公告)日:2010-09-30

    申请号:US12675834

    申请日:2008-09-02

    IPC分类号: C07C255/07

    CPC分类号: C07C253/30 C07C255/60

    摘要: A method for producing N-methacryloyl-4-cyano-3-trifluoromethylaniline, wherein 4-cyano-3-trifluoromethylaniline is crystallized from a mixed solvent of methanol and water, and the obtained 4-cyano-3-trifluoromethylaniline is reacted with methacryloyl chloride improved separation property even in industrial production in a large scale.

    摘要翻译: N-甲基丙烯酰基-4-氰基-3-三氟甲基苯胺的制备方法,其中4-氰基-3-三氟甲基苯胺从甲醇和水的混合溶剂中结晶,将得到的4-氰基-3-三氟甲基苯胺与甲基丙烯酰氯 即使在大规模的工业生产中也提高了分离性能。

    Method of crystallization of bicalutamide
    10.
    发明授权
    Method of crystallization of bicalutamide 失效
    比卡鲁胺结晶方法

    公开(公告)号:US07632971B2

    公开(公告)日:2009-12-15

    申请号:US11571956

    申请日:2005-07-13

    IPC分类号: C07C233/05 C07C255/50

    CPC分类号: C07C315/06 C07C317/46

    摘要: The present invention provides a method of crystallization of bicalutamide comprising adding an acetone solution containing bicalutamide to water; crystals of bicalutamide wherein particle size distribution of the crystals is 1 to 10 μm of Dp10, 10 to 25 μm of Dp50 and 25 to 100 μm of Dp90, and the crystals are obtainable by the method described above; and crystals of bicalutamide, wherein particle size distribution of the crystals is 1 to 3 μm of Dp10, 2 to 5 μm of Dp50 and 5 to 15 μm of Dp90.

    摘要翻译: 本发明提供了比卡鲁胺的结晶方法,包括将含有比卡鲁胺的丙酮溶液加入水中; 其中晶体的粒径分布为Dp10的1-10μm,Dp50为10〜25μm,Dp90为25〜100μm,并且可以通过上述方法得到结晶。 和比卡鲁胺的晶体,其中晶体的粒度分布为Dp10的1-3μm,Dp50为2-5μm,Dp90为5-15μm。