Oor N-Alkylated derivatives of aminophenols are important synthetic intermediates in organic synthesis. A series of aminophenols were selectively alkylated on their hydroxyl group in good yields via benzaldehyde protection of the amino group, subsequent alkylation, and hydrolysis; or on their amino group via imination and following reduction.
Oxalsäurediarylamide und deren Verwendung als UV-Absorber und damit ausgerüstete polymere Substrate
申请人:BASF Aktiengesellschaft
公开号:EP0116931A1
公开(公告)日:1984-08-29
Oxalsäurediarylamide der Formel
in der R Wasserstoff oder lineares oder verzweigtes C1- bis C12-Alkyl bedeutet.
Die Verbindungen (I) sind als UV-Absorber zur Stabilisierung von Polymeren Substraten sehr gut geeignet.
式中 R 为氢或直链或支链 C1 至 C12 烷基的草酸二芳基酰胺。 化合物 (I) 非常适合用作稳定聚合物基材的紫外线吸收剂。
Composition for liquid crystal aligning agent
申请人:NISSAN CHEMICAL INDUSTRIES LTD.
公开号:EP0337355A2
公开(公告)日:1989-10-18
This invention is concerned with a composition to be used as an agent for aligning liquid crystals in a liquid crystal cell, wherein liquid crystal molecules are aligned with an increased pretilt angle with respect to the substrate, such composition consists essentially of a polyimide resin precursor having repeating units represented by the formula (I)
wherein R₁ denotes an organic group constituting a tetracarboxylic acid or its derivative; and R₂ represents a divalent organic group constituting a diamine; and
a precursor of a diimide compound represented by the formula (II) or (III):
wherein R₃ denotes a divalent organic group constituting a diamine; each of R₄ and R₅ represents an organic groups constituting a dicarboxylic acid containing an alkyl group having 6 to 20 carbon atoms, or its derivative,
wherein R₆ denotes an organic group constituting a tetracarboxylic acid or its derivative, and each of R₇ and R₈ represents an organic group constituting a monoamine containing an alkyl group having 6 to 20 carbon atoms.
Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP1246006A2
公开(公告)日:2002-10-02
A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: wherein Q is a group -C(-R11)=C(-R12)-SO2-; R11 and R12 bond with each other to form, together with the -C=C- moiety, a 5- to 7-membered ring, or they each represent a hydrogen atom or a substituent; R1, R3 and R4 each represent a substituent; m is an integer of 0 to 4; and X represents a hydrogen atom or a group that splits off upon a coupling reaction with an oxidized product of a developing agent; with the proviso that the following compound (I-A) is excluded from the dye-forming coupler of formula (I).
TRIPHENYLBORON COMPOUND-CONTAINING ANTIFOULING COATING COMPOSITION HAVING IMPROVED STABILITY, ANTIFOULING AGENT SET USED THEREFOR, AND METHOD FOR SUPPRESSING/CONTROLLING DECOMPOSITION OF TRIPHENYLBORON COMPOUND
申请人:CHUGOKU MARINE PAINTS, LTD.
公开号:EP2161318A1
公开(公告)日:2010-03-10
An object of the present invention is to provide an antifouling coating material composition in which, though containing a triphenylboron compound as an antifouling agent, the triphenylboron compound is inhibited from being decomposed in production and long term storage and which is excellent in a storage stability and a static antifouling property of an antifouling coating film obtained therefrom.
The antifouling coating material composition of the present invention comprises at least (A) a coating film-forming resin and (B) a triphenylboron-amine complex (b1) as an antifouling agent, and it further comprises (C) an amine compound other than the triphenylboron-amine complex (b1) described above as a decomposition inhibitor for the above compound (b1). A content of the amine compound (C) described above is preferably a proportion of 1.0 to 210 parts by weight per 100 parts by weight of the component (b1).