Homologisierung der Fischer‐Indol‐Synthese: Chinoline via Homo‐Diaza‐Cope‐Umlagerung
作者:Gabriela Guillermina Gerosa、Sebastian Armin Schwengers、Rajat Maji、Chandra Kanta De、Benjamin List
DOI:10.1002/ange.202005798
日期:2020.11.9
AbstractWir beschreiben eine neuartige Strategie zurSynthese von Chinolinen basierend auf einer Brønsted‐Säure‐induzierten Homo‐Diaza‐Cope‐Umlagerung von N‐Aryl‐N′‐Cyclopropylhydrazinen. Unsere Strategie kann als Homologisierung der klassischen Fischer‐Indol‐Synthese verstanden werden und ermöglicht die Bildung sechsgliedriger N‐Heterocyclen inklusive weiterer, vorher nicht zugänglicher Pyridinderivate
DIAMINE COMPOUND, AND HEAT-RESISTANT RESIN OR HEAT-RESISTANT RESIN PRECURSOR USING SAME
申请人:TORAY INDUSTRIES, INC.
公开号:US20170334837A1
公开(公告)日:2017-11-23
Provided are a photosensitive resin composition which has excellent pattern processabilities (high sensitivity and high resolution) and is excellent in chemical resistance and thermal resistance after thermally treated; a heat-resistant resin or heat-resistant resin precursor used for the composition; and a diamine compound which is a raw material of the resin and the precursor. The diamine compound is a diamine compound represented by a general formula (1).
Method for preparing light-absorbing polymeric compositions
申请人:——
公开号:US20040195552A1
公开(公告)日:2004-10-07
The present invention recites a method comprising reacting in a solvent in the presence of a base
a) at least one diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1200 nm and 99-0 mole % of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm, with
b) an organic compound of Formula II
X—B—X
1
wherein B is a divalent organic radical to form a light absorbing composition comprising a mixture of a polymer having the formula
1
and a cyclic compound having the general formula
2
wherein B is as defined above; n is at least 2, m is 1, 2, 3 or 4 and A comprises the residue of a diacidic monomer comprising about 1 to 100 mole % of at least one light-absorbing monomer having a light absorption maximum between about 300 nm and about 1000 nm and wherein the remaining portion of A comprises the residue of a non-light absorbing monomer which does not absorb significant light at wavelengths above 300 nm or has a light absorption maximum below 300 nm.
Aqueous dispersion of water-insoluble-colorant-containing particle and preparation process thereof, water-insoluble-colorant-containing particle and preparation process thereof, and ink
申请人:Canon Kabushiki Kaisha
公开号:US20040009294A1
公开(公告)日:2004-01-15
An embodiment of the invention relates to an aqueous dispersion containing pigment-containing particles. The dispersion is an aqueous dispersion comprising particles containing a water-insoluble colorant dispersed in a water-containing medium, wherein the light-scattering intensity of the dispersion is at most 30,000 cps when the absorbance peak value of the dispersion in a visible region is regarded as 1.
Nitrogen-containing polyaromatic compounds have been prepared in one step by combining diols and anthracenyl or naphthyl amines via acceptorless dehydrogenative condensation with ZnO and Pt/Al2O3 as heterogeneous catalysts.
含氮多环芳烃化合物通过与作为非均相催化剂的 ZnO 和 Pt/Al 2 O 3进行无受体脱氢缩合将二醇和蒽胺或萘胺结合,一步制得。