(Di)arylaminoalkyl 4-hydroxyphenylalkanecarboxylates
    7.
    发明授权
    (Di)arylaminoalkyl 4-hydroxyphenylalkanecarboxylates 失效
    (Di)芳基氨基烷基4-羟基苯基链烷羧酸酯

    公开(公告)号:US5629422A

    公开(公告)日:1997-05-13

    申请号:US343393

    申请日:1994-11-22

    申请人: Hugo Camenzind

    发明人: Hugo Camenzind

    摘要: New compounds of the formula I are described which are active, for example, as antioxidants, and also a process for their preparation: ##STR1## R.sub.1 and R.sub.2 are independently of one another C.sub.1 -C.sub.20 alkyl, allyl, methallyl, unsubstituted or C.sub.1 -C.sub.8 alkyl-substituted C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.8 cycloalkenyl, phenyl or C.sub.7 -C.sub.9 phenylalkyl, A is a direct bond, --CH.sub.2 --, --(CH.sub.2).sub.2 -- or --CH.sub.2 --CH(CH.sub.3)--, E is --(CH.sub.2).sub.2 --, --CHR.sub.6 --CH.sub.2 -- or --CH.sub.2 CHR.sub.6 --, n is 1, 2 or 3, R.sub.3 is C.sub.1 -C.sub.18 alkyl or is C.sub.1 -C.sub.18 alkyl which is interrupted by --O-- or --S--, unsubstituted or C.sub.1 -C.sub.8 alkyl-substituted C.sub.5 -C.sub.12 cycloalkyl, phenyl, naphthyl, C.sub.7 -C.sub.9 phenylalkyl, C.sub.7 -C.sub.18 alkylphenyl or is of the formula ##STR2## R.sub.4 is phenyl, naphthyl, C.sub.7 -C.sub.9 phenylalkyl, C.sub.7 -C.sub.18 alkylphenyl or is a radical of the formula ##STR3## or NR.sub.3 R.sub.4 is a group of the formula ##STR4## R.sub.5 is hydrogen, C.sub.1 -C.sub.18 alkyl, allyl, methallyl, unsubstituted or C.sub.1 -C.sub.8 alkyl-substituted C.sub.5 -C.sub.12 cycloalkyl, phenyl or naphthyl, R.sub.6 is hydrogen, C.sub.1 -C.sub.20 alkyl or C.sub.2 -C.sub.20 alkyl which is interrupted by --O--, --S--, --NR.sub.7 -- or --C(O)O--, and R.sub.7 is hydrogen or C.sub.1 -C.sub.6 alkyl.

    摘要翻译: 描述了具有活性的新的式I化合物,例如作为抗氧化剂,以及它们的制备方法:(I)R 1和R 2彼此独立地为C 1 -C 20烷基,烯丙基,甲代烯丙基,未取代的或未取代的 C 1 -C 8烷基取代的C 5 -C 12环烷基,C 5 -C 8环烯基,苯基或C 7 -C 9苯基烷基,A是直接键,-CH 2 - , - (CH 2)2 - 或-CH 2 -CH(CH 3) - ,E是 - (CH 2 )2-,-CHR 6 -CH 2 - 或-CH 2 CHR 6 - ,n为1,2或3,R 3为C 1 -C 18烷基或被-O-或-S-间隔的C 1 -C 18烷基,未取代或C 1 -C 8烷基 - 取代的C 5 -C 12环烷基,苯基,萘基,C 7 -C 9苯基烷基,C 7 -C 18烷基苯基或具有下式的化合物:R 4是苯基,萘基,C 7 -C 9苯基烷基,C 7 -C 18烷基苯基,或者是下式的基团:IMAGE> C 1 -C 18烷基,烯丙基,甲代烯丙基,未取代的或C 1 -C 8烷基取代的C 5 -C 12环烷基,苯基或萘基,R 6是氢,C 1 -C 20烷基或C 2 -C 20烷基,其被-O - , - S-, NR7-或-C(O)O-,R7是氢或C1- C6烷基。

    Preparation of benzylidene compounds
    8.
    发明授权
    Preparation of benzylidene compounds 失效
    亚苄基化合物的制备

    公开(公告)号:US4633007A

    公开(公告)日:1986-12-30

    申请号:US832503

    申请日:1986-02-21

    申请人: Michael Preiss

    发明人: Michael Preiss

    CPC分类号: C07C201/12

    摘要: A process for the preparation of a benzylidene compound of the formula ##STR1## in which R.sup.1 is hydrogen or one or two substituents independently selected from the group consisting of nitro, cyano, halogen, SO.sub.3 H, alkyl, alkoxy and fluorinated alkyl, each with 1 to 4 C atoms and two or three fluorine substituents, andR.sup.3 is alkyl with 1 to 10 C atoms, which is optionally interrupted by an oxygen in the chain or is optionally substituted by fluorine, chlorine, hydroxyl or a methylbenzylamine group, comprising reacting an acetal of the formula ##STR2## in which R.sup.2 each independently is alkyl with 1 to 6 C atoms, which is optionally substituted by phenyl, or the two radicals R.sup.2 conjointly form an alkylene radical with 1-6 C atoms,with a .beta.-ketocarboxylic acid ester of the formulaCH.sub.3 CO--CH.sub.2 --COOR.sup.3in the presence of an acid at a temperature between about 40.degree. and 120.degree..

    摘要翻译: 制备式“IMAGE”的亚苄基化合物的方法,其中R 1是氢或一个或两个独立地选自硝基,氰基,卤素,SO 3 H,烷基,烷氧基和氟化烷基的取代基,各自具有1 至4个C原子和两个或三个氟取代基,R3是具有1至10个C原子的烷基,其任选被链中的氧中断或任选被氟,氯,羟基或甲基苄胺基取代,包括使 其中R 2各自独立地为具有1至6个C原子的烷基,其任选被苯基取代,或两个基团R 2与1-6个C原子一起形成亚烷基,与β-酮羧酸 在酸存在下,在约40至120℃的温度下,式CH 3 CO-CH 2 -COOR 3的酸酯。