Synthesis and chemical transformations of 6-amino-7-chloro-2-(2-hydroxyphenyl)-2H-benzo-triazole-4-carboxylic acid derivatives
摘要:
6-Amino-7-chloro-2-(2-hydroxyphenyl)-2H-benzotriazole-4-carboxylic acid and its analogs containing chlorine and nitro groups in the phenyl fragment have been synthesized. The special features of reduction and acetylation reactions with the obtained compounds have been studied. Methods have been developed for further chemical conversions which enable a large number of 2-(2-hydroxyphenyl)-2H-benzotriazole-4-carboxylic acid derivatives to be obtained, with the aim of studying the dependence of their luminescence and complex-forming properties on various functional substituents.
Synthesis and chemical transformations of 6-amino-7-chloro-2-(2-hydroxyphenyl)-2H-benzo-triazole-4-carboxylic acid derivatives
摘要:
6-Amino-7-chloro-2-(2-hydroxyphenyl)-2H-benzotriazole-4-carboxylic acid and its analogs containing chlorine and nitro groups in the phenyl fragment have been synthesized. The special features of reduction and acetylation reactions with the obtained compounds have been studied. Methods have been developed for further chemical conversions which enable a large number of 2-(2-hydroxyphenyl)-2H-benzotriazole-4-carboxylic acid derivatives to be obtained, with the aim of studying the dependence of their luminescence and complex-forming properties on various functional substituents.
The present invention relates in a first consideration to aldimines of formula (I). Said aldimines are particularly suitable as latent hardeners in curable compositions, particularly compositions comprising one or two-component isocyanate groups. Due to the presence of the reactive group, they can be converted to compounds of the formulas (X) and (XII) comprising aldimine groups, implementing a further consideration of the present invention. The aldimines, or the compounds comprising aldimine groups, can be used primarily in adhesive and sealant materials, but also in coatings, and can be produced easily from readily available source materials, and have good thermal stability. The tertiary amino group thereof has a surprisingly low alkalinity and can in some cases have a catalytic effect in chemical reaction systems.
Polyether-Polycarbonat-Diole, ihre Herstellung und Verwendung als Ausgangsprodukte für Polyurethankunststoffe
申请人:BAYER AG
公开号:EP0292772A2
公开(公告)日:1988-11-30
Hydroxyl-Endgruppen aufweisende Polyether-Polycarbonate mit MG von 500-12.000, bestehend aus Hexamethylengruppen und gegebenenfalls bis zu 50 Mol-% der Hexamethylengruppen aus Penta-, Hepta-, Octa-, Nona- oder Decamethylengruppen, die statistisch, alternierend oder blockweise durch Ether- und Carbonatgruppen verknüpft sind, wobei das Verhältnis von Ethergruppen zu Carbonatgruppen 5:1 bis 1:5 beträgt.
Die vorliegende Erfindung betrifft ein Amin der Formel (I) und/oder ein Addukt davon mit einem Epoxid, sowie ein Reaktionsprodukt aus der Hydrierung eines Amins der Formel (II) enthaltend das Amin der Formel (I).
Das Amin der Formel (I) ist niedrigviskos, hellfarbig, farbstabil, geruchsarm, wenig empflindlich auf Carbamatisierung und auf der Basis von nachwachsenden Rohstoffen herstellbar. Es ermöglicht gut verarbeitbare, geruchs- und emissionsarme Epoxidharz-Produkte, welche schnell und störungsfrei aushärten.
Gas separation membrane, gas separation module, gas separation device, and gas separation method
申请人:FUJIFILM Corporation
公开号:US10040035B2
公开(公告)日:2018-08-07
Provided are a gas separation membrane which includes a gas separation layer formed to include a polyimide compound and in which the polyimide compound includes a repeating unit represented by the following Formula (I), a gas separation module, a gas separation device, and a gas separation method using the same.
In Formula (I), R represents a group having a specific structure. R3 represents a specific substituent group. A1 to A3 represent a hydrogen atom or a specific substituent group, but all of A1 to A3 do not represent a hydrogen atom at the same time.
In this case, at least one of R3, A1, A2, and A3 represents a specific polar group.
An amine of the formula (I) and a process for its preparation by reductive alkylation of 1,2-propylenediamine with a di- or trifunctional carbonyl compound and hydrogen. The amine of the formula (I) is low in viscosity and in odour, high in reactivity towards epoxides and outstanding in its compatibility with other amines and with epoxy resins. The amine of the formula (I) allows access to low-emission epoxy resin compositions which have good processing qualities, cure rapidly even at low temperatures and form high-quality, high-hardness plastics having an attractive surface.