Organotin compound and catalyst for transesterification comprising the
same
    22.
    发明授权
    Organotin compound and catalyst for transesterification comprising the same 失效
    有机锡化合物和含有它的酯交换催化剂

    公开(公告)号:US6022822A

    公开(公告)日:2000-02-08

    申请号:US243413

    申请日:1999-02-03

    申请人: Ryoji Noyori

    发明人: Ryoji Noyori

    摘要: The present invention provides a catalyst for transesterification comprising an organotin compound expressed by the following general formula (I): ##STR1## wherein, X, Y, and Z represent, respectively and independently, an alkoxyl group, alkylthio group, halogen atom, or alkyl group; where at least two groups among X, Y, and Z represent an alkoxyl group, alkylthio group, or halogen atom; R represents an organic chain; and R' represents a hydrogen atom, or alkyl group.

    摘要翻译: 本发明提供一种用于酯交换的催化剂,其包含由以下通式(I)表示的有机锡化合物:其中,X,Y和Z分别独立地表示烷氧基,烷硫基,卤素原子或烷基; 其中X,Y和Z中的至少两个表示烷氧基,烷硫基或卤素原子; R表示有机链; 和R'表示氢原子或烷基。

    METHOD FOR PRODUCING ALCOHOL BY HYDROGENATING LACTONE AND CARBOXYLIC ACID ESTER IN LIQUID PHASE
    24.
    发明申请
    METHOD FOR PRODUCING ALCOHOL BY HYDROGENATING LACTONE AND CARBOXYLIC ACID ESTER IN LIQUID PHASE 有权
    通过在液相中氢化柠檬酸和羧酸酯生产醇的方法

    公开(公告)号:US20100113842A1

    公开(公告)日:2010-05-06

    申请号:US12594577

    申请日:2008-04-02

    IPC分类号: C07C31/18 C07C27/04

    摘要: Disclosed is a method for producing an alcohol from a lactone or a carboxylic acid ester, which enables to produce an alcohol from a lactone or a carboxylic acid ester under relatively mild conditions with high yield and high catalytic efficiency. This method also enables to produce an optically active alcohol from an optically active lactone or an optically active carboxylic acid ester. Specifically disclosed is a method for producing an alcohol by hydrogen reducing a lactone or a carboxylic acid ester in the presence of a catalyst containing ruthenium and a phosphine compound represented by the following general formula (1): wherein R1 represents a spacer; R2, R3, R4, R5, R6 and R7 independently represent a hydrogen atom, an alkyl group having 1-12 carbon atoms, an aryl group or a heterocyclic group; and R8, R9, R10, R11, R12 and R13 independently represent an alkyl group having 1-12 carbon atoms, an aryl group or a heterocyclic group.

    摘要翻译: 公开了一种从内酯或羧酸酯制备醇的方法,其能够在相对温和的条件下以高产率和高催化效率从内酯或羧酸酯制备醇。 该方法还能够从光学活性的内酯或光学活性的羧酸酯制备光学活性的醇。 具体公开的是通过在含有钌的催化剂和由以下通式(1)表示的膦化合物的存在下氢还原内酯或羧酸酯来制备醇的方法:其中R1表示间隔基; R2,R3,R4,R5,R6和R7独立地表示氢原子,具有1-12个碳原子的烷基,芳基或杂环基; 并且R 8,R 9,R 10,R 11,R 12和R 13独立地表示具有1-12个碳原子的烷基,芳基或杂环基。

    Process for production of prostaglandins D2
    27.
    发明授权
    Process for production of prostaglandins D2 失效
    前列腺素生产工艺D2

    公开(公告)号:US4886903A

    公开(公告)日:1989-12-12

    申请号:US244644

    申请日:1988-09-13

    摘要: The present invention provides a process for the production of PGD.sub.2, wherein 7-hydroxy prostaglandin F.sub.2 .alpha. is treated with thiocarbonyl diimidazole or its analog and subjecting thus treated product to the reaction to deoxidize the hydroxyl group at the 7-position, the reaction to convert the hydroxyl group to a protecting group, and the reaction to oxidize the hydroxyl group at the 11-position, thus giving PGD.sub.2 at a high efficiency.

    摘要翻译: 本发明提供了一种制备PGD2的方法,其中7-羟基前列腺素F2α用硫代羰基二咪唑或其类似物处理,经过如此处理的产物进行反应以使7位羟基脱氧,转化反应 保护基的羟基,以及在11位氧化羟基的反应,从而高效率地得到PGD 2。

    4-hydroxy-2-cyclopentenone, process for production thereof,
pharmaceutical composition comprising it
    30.
    发明授权
    4-hydroxy-2-cyclopentenone, process for production thereof, pharmaceutical composition comprising it 失效
    4-羟基-2-环戊烯酮,其制备方法,包含它的药物组合物

    公开(公告)号:US4711895A

    公开(公告)日:1987-12-08

    申请号:US791156

    申请日:1985-10-22

    摘要: A 4-hydroxy-2-cyclopentenone represented by the following formula (I) ##STR1## wherein X represents a hydrogen or halogen atom, A represents a hydrogen atom and B represents a hydroxyl group, or A and B are bonded to each other to represent a bond, R.sup.1 represents a substituted or unsubstituted alkyl, alkenyl or alkynyl group having 1 to 10 carbon atoms, R.sup.2 represents a substituted or unsubstituted alkyl, alkenyl or alkynyl group having 1 to 10 carbon atoms, and R.sup.3 represents a hydrogen atom or a protective group for a hydroxyl group, provided that R.sup.2 is not a 2-octenyl, 8-acetoxy-2-octenyl or 2,5-octadienyl group. The compounds of formula (I) in which A is hydrogen and B is hydroxyl group are prepared by subjecting a 5-unsubstituted cyclopentenone and an aldehyde to aldol condensation reaction. The compounds of formula (I) in which A and B form a bond is prepared by subjecting the compounds of the formula (I) in which A is hydrogen and B is hydroxyl group to dehydration. The compounds (I) are useful for treatment of malignant tumors.

    摘要翻译: 由下式(I)表示的4-羟基-2-环戊烯酮其中X表示氢或卤素原子,A表示氢原子,B表示羟基,或A和B键合到 彼此表示键,R1表示取代或未取代的碳原子数1〜10的烷基,链烯基或炔基,R2表示取代或未取代的碳原子数1〜10的烷基,烯基或炔基,R3表示氢 原子或羟基保护基,条件是R2不是2-辛烯基,8-乙酰氧基-2-辛烯基或2,5-辛二烯基。 其中A为氢且B为羟基的式(I)化合物是通过使5-未取代的环戊烯酮和醛进行醛醇缩合反应来制备的。 其中A和B形成键的式(I)化合物通过使其中A为氢且B为羟基的式(I)化合物脱水而制备。 化合物(I)可用于治疗恶性肿瘤。