Silicone compounds containing a phenylenediamine functional group and
their application in the protection of rubber materials against ozone
    3.
    发明授权
    Silicone compounds containing a phenylenediamine functional group and their application in the protection of rubber materials against ozone 失效
    含有苯二胺官能团的硅氧烷化合物及其在保护橡胶材料中抵抗臭氧的应用

    公开(公告)号:US5733999A

    公开(公告)日:1998-03-31

    申请号:US644028

    申请日:1996-05-09

    摘要: The present invention relates to compounds composed essentially of a linear, cyclic or branched polyorganosiloxane having, per molecule, at least 3 siloxy units, including at least one siloxy functional unit of formula: ##STR1## where R.sup.1 represents a C.sub.1 to C.sub.4 alkyl or phenyl radical, X contains an N,N'-di- and/or trisubstituted phenylenediamine functional group, bonded to the silicon via an Si--(hydrocarbon linking unit)--N and/or Si--(hydrocarbon linking unit)--C bond, and a is a number chosen from 0, 1 and 2. The present invention also relates to the use of such compounds as antiozonants for rubbers and in particular for rubber compositions for tires.

    摘要翻译: 本发明涉及基本上由直链,环状或支化的聚有机硅氧烷组成的化合物,其每分子具有至少3个甲硅烷氧基单元,包括至少一个下式的式(I)的硅氧烷基官能单元:(R1)aXSi(O)+ E, a / 2 + EE,其中R1表示C1-C4烷基或苯基,X含有N,N'-二 - 和/或三取代苯二胺官能团,通过Si - (烃连接单元)-N 和/或Si-(烃连接单元)-C键,a是选自0,1和2的数字。本发明还涉及这种化合物作为橡胶的抗臭氧剂,特别是用于轮胎的橡胶组合物的用途 。

    Process for preparing taxane derivatives
    4.
    发明授权
    Process for preparing taxane derivatives 失效
    制备紫杉烷衍生物的方法

    公开(公告)号:US5677462A

    公开(公告)日:1997-10-14

    申请号:US742101

    申请日:1996-10-31

    摘要: Disclosed is a compound of formula VII: ##STR1## where Ar represents an optionally substituted phenyl or .alpha.- or .beta.-naphthyl radical; R.sub.3 represents hydrogen, a C.sub.1-4 alkyl radical, a C.sub.2-4 alkenyl radical, an aralkyl radical, or an aryl radical; and R.sub.4 represents hydrogen, a C.sub.1-4 alkyl radical, a C.sub.2-4 alkenyl radical, an aralkyl radical, or an aryl radical; or alternatively R.sub.3 and R.sub.4, together with the carbon atom to which they are linked, form a 4- to 7-membered ring; and R.sub.5 represents an C.sub.1-4 alkyl radical substituted with at least one chlorine atom. The compound of formula VI may be used to manufacture a compound of formula VIII: ##STR2## where Ar, R.sub.3, R.sub.4 and R.sub.5 are defined above; G.sub.1 represents a group protecting the hydroxyl function; and where appropriate, G.sub.2 represents a group protecting the hydroxyl function.

    摘要翻译: 公开了式VII的化合物:其中Ar表示任选取代的苯基或α-或β-萘基; R3表示氢,C1-4烷基,C2-4烯基,芳烷基或芳基; R4表示氢,C1-4烷基,C2-4烯基,芳烷基或芳基; 或者R3和R4与它们所连接的碳原子一起形成4-至7-元环; 并且R 5表示被至少一个氯原子取代的C 1-4烷基。 式VI化合物可用于制备式VIII化合物:其中Ar,R 3,R 4和R 5如上定义; G1表示保护羟基官能团的基团; 并且在适当的情况下,G2表示保护羟基官能团的基团。

    Method of preparing taxane derivatives
    7.
    发明授权
    Method of preparing taxane derivatives 失效
    制备紫杉烷衍生物的方法

    公开(公告)号:US5616739A

    公开(公告)日:1997-04-01

    申请号:US411692

    申请日:1995-05-03

    摘要: This invention relates to a method of preparing taxane derivatives of general formula (I) by esterification of protected baccatine III or 10-deacetylbaccatine III by means of an acid of general formula (VII), elimination of protection groupings of the ester obtained, and acylation of the amine function of the side chain. In formulae (I) and (VII): Ar stands for aryl, R is hydrogen or acetyl, R.sub.1 is benzoyl or R.sub.2 --CO--O-- in which R.sub.2 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, phenyl or heterocyclyl, R.sub.3 and R.sub.4 may be the same or different and represent hydrogen, alkyl, alkenyl, aralkyl, aryl or alkoxy, and R.sub.5 is an alkyl radical substituted by one or more chlorine atoms (2,2,2-trichloroethyl, (2-trichloromethylisopropyl). ##STR1##

    摘要翻译: PCT No.PCT / FR93 / 00967 Sec。 371日期:1995年5月3日 102(e)日期1995年5月3日PCT提交1993年10月4日PCT公布。 出版物WO94 / 07877 日本1994年4月14日本发明涉及通过通式(VII)的酸酯化保护的巴曲胺III或10-脱乙酰基浆果赤霉素III来制备通式(I)的紫杉烷衍生物的方法, 酯,并且侧链的胺官能团的酰化。 在式(I)和(VII)中:Ar代表芳基,R是氢或乙酰基,R1是苯甲酰基或R2-CO-O-,其中R2是烷基,烯基,炔基,环烷基,环烯基,双环烷基,苯基或杂环基 ,R 3和R 4可以相同或不同,代表氢,烷基,烯基,芳烷基,芳基或烷氧基,R5是被一个或多个氯原子取代的烷基(2,2,2-三氯乙基,(2-三氯甲基异丙基 )。图像(I)(VII)

    Silicone compounds containing a phenylenediamine functional group and
their application in the protection of rubber materials against ozone
    8.
    发明授权
    Silicone compounds containing a phenylenediamine functional group and their application in the protection of rubber materials against ozone 失效
    含有苯二胺官能团的硅氧烷化合物及其在保护橡胶材料中抵抗臭氧的应用

    公开(公告)号:US5929166A

    公开(公告)日:1999-07-27

    申请号:US979498

    申请日:1997-11-26

    摘要: The present invention relates to compounds composed essentially of a linear, cyclic or branched polyorganosiloxane having, per molecule, at least 3 siloxy units, including at least one siloxy functional unit of formula: ##STR1## where R.sup.1 represents a C.sub.1 to C.sub.4 alkyl or phenyl radical, X contains an N,N'-di- and/or trisubstituted phenylenediamine functional group, bonded to the silicon via an Si-(hydrocarbon linking unit)-N and/or Si-(hydrocarbon linking unit)-C bond, and a is a number chosen from 0, 1 and 2. The present invention also relates to the use of such compounds as antiozonants for rubbers and in particular for rubber compositions for tires.

    摘要翻译: 本发明涉及基本上由直链,环状或支化的聚有机硅氧烷组成的化合物,其每分子具有至少3个甲硅烷氧基单元,包括至少一个下式的甲硅烷氧基官能单元:其中R 1表示C 1至C 4烷基或苯基,X 含有通过Si-(烃连接单元)-N和/或Si-(烃连接单元)-C键与硅结合的N,N'-二 - 和/或三取代的苯二胺官能团,a是 本发明还涉及这种化合物作为橡胶的抗臭氧剂,特别是用于轮胎的橡胶组合物的用途。

    Process for preparing taxane derivatives
    9.
    发明授权
    Process for preparing taxane derivatives 失效
    制备紫杉烷衍生物的方法

    公开(公告)号:US5869680A

    公开(公告)日:1999-02-09

    申请号:US908806

    申请日:1997-08-08

    摘要: This invention relates to a method of preparing taxane derivatives of general formula (I) by esterification of protected baccatine III or 10-deacetylbaccatine III by means of an acid of general formula (VII), elimination of protection groupings of the ester obtained, and acylation of the amine function of the side chain. In formulae (I) and (VII): Ar stands for aryl, R is hydrogen or acetyl, R.sub.1 is benzoyl or R.sub.2 -CO--O- in which R.sub.2 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, phenyl or heterocyclyl, R.sub.3 and R.sub.4 may be the same or different and represent hydrogen, alkyl, alkenyl, aralkyl, aryl or alkoxy, and R.sub.5 is an alkyl radical substituted by one or more chlorine atoms (2,2,2-trichloroethyl, 2-trichloromethylisopropyl). ##STR1##

    摘要翻译: 本发明涉及一种通过通式(Ⅶ)的酸对保护的巴胺三醇或10-脱乙酰基浆果赤霉素III进行酯化反应制备通式(I)的紫杉烷衍生物的方法,消除得到的酯的保护基和酰化 的侧链的胺官能团。 在式(I)和(VII)中:Ar代表芳基,R是氢或乙酰基,R1是苯甲酰基或R2-CO-O-,其中R2是烷基,烯基,炔基,环烷基,环烯基,双环烷基,苯基或杂环基 R 3和R 4可以相同或不同,代表氢,烷基,烯基,芳烷基,芳基或烷氧基,R5是被一个或多个氯原子取代的烷基(2,2,2-三氯乙基,2-三氯甲基异丙基) 。