Preparation process of fluorenes
    4.
    发明申请
    Preparation process of fluorenes 失效
    芴的制备工艺

    公开(公告)号:US20010011144A1

    公开(公告)日:2001-08-02

    申请号:US09768621

    申请日:2001-01-25

    Inventor: Hiroaki Mori

    CPC classification number: C07C49/675 C07C13/567 C07C325/02 C07C2603/18

    Abstract: A tetrahydrofluorene, which is represented by the following formula (I) 1 wherein R1 to R6 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, or R1 and R2 are combined together to represent nullO, nullN or nullS, R7 and R8 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogen atom, a hydroxyl group or a carboxyl group, is subjected to a hydrogen transfer reaction in the presence of a hydrogen acceptor and a catalyst, whereby a fluorene and a hydride of the hydrogen acceptor are formed at the same time.

    Abstract translation: 由下式(I)表示的四氢芴,其中R 1至R 6各自独立地表示氢原子或具有1至4个碳原子的烷基,或R 1和R 2组合​​在一起,表示= O,= N或= S,R7和R8各自独立地表示氢原子,具有1至4个碳原子的烷基,具有1至4个碳原子的烷氧基,卤素原子,羟基或羧基,进行氢转移 在氢受体和催化剂的存在下进行反应,由此同时形成氢受体的芴和氢化物。

    Sulfonium salts having acid-labile groups
    9.
    发明授权
    Sulfonium salts having acid-labile groups 失效
    具有酸性组的磺酸盐

    公开(公告)号:US5191124A

    公开(公告)日:1993-03-02

    申请号:US214011

    申请日:1988-06-30

    CPC classification number: C07C381/12 C07F7/1856 G03F7/029

    Abstract: Sulfonium salts of the general formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are identical or different and are aliphatic and/or aromatic radicals which may contain heteroatoms, or two of the radicals R.sup.1 and R.sup.3 are bonded to one another to form a ring, with the proviso that one or more of the radicals R.sup.1 to R.sup.3 contain one or more acid-cleavable groups, or one of the radicals R.sup.1 to R.sup.3 is bonded to one or more further sulfonium salt radicals, if desired via acid-cleavable groups, and X.sup..crclbar. is a non-nucleophilic counter-ion, are suitable as photoinitiators for cationic polymerization.

    Abstract translation: 其中R 1,R 2和R 3相同或不同并且可以含有杂原子的脂族和/或芳族基团或基团R 1和R 3中的两个彼此键合形成环,通式为“IMAGE”的锍盐, 条件是一个或多个基团R 1至R 3含有一个或多个可酸可裂解基团,或者如果需要,通过酸可裂解基团,基团R 1至R 3中的一个与一个或多个其它锍盐基团键合,以及 X( - )是非亲核反离子,适合用作阳离子聚合的光引发剂。

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