CAS: 7621-86-5; 2-(4-Aminophenyl)-1H-Benzimidazol-5-Amine

相似化合物

13676-49-8 2963-77-1 7596-74-9

上下游产品

CAS号615-47-4 1,2,4-三氨基苯胺二盐酸盐 | CAS号150-13-0 对氨基苯甲酸 | CAS号97-02-9 2,4-二硝基苯胺 | CAS号37632-91-0 2'',4'',4-TRINI... | CAS号1772-39-0 5-硝基-2-(4-硝基苯基)... | CAS号3460-11-5 4-硝基苯甲酰替苯胺 | CAS号555-16-8 对硝基苯甲醛 | CAS号99-56-9 4-硝基邻苯二胺 | CAS号60779-50-2 2'',4'',4-triam... | CAS号7647-01-0 盐酸

2,4-二硝基苯胺置于甲烷磺酸,Tin(II) Chloride Dihdyrate,Degussa F101 Catalyst,氢气体系中,用 乙醇,对二甲苯,水 作为反应溶剂,15.0~70.0 °C,689.49 Kpa 条件下,反应 10.25H,反应生成 2-(4-氨基苯基)-5-氨基苯并咪唑
参考文献:Process For The Preparation Of Aromatic Azole Compounds
标题:Process For The Preparation Of Aromatic Azole Compounds
摘要:芳香唑类化合物,如2-(4-氨基苯基)-5-氨基苯并咪唑,是在有机磺酸溶剂中制备的,而不是在聚磷酸中制备的.这样可以回收和循环溶剂,并避免使用聚磷酸所带来的处理和环境问题.所得的化合物在制药工业中被用作抗腐蚀剂,并作为高性能纤维的前体,具有高强度,刚度和阻燃性.

专利信息

专利号:WO-2017089470-A1
优先权日:2015-11-27
标 题:Process for the synthesis of aryldiazonium salts using nitrogen oxides in oxygen-containing gas streams, especially from industrial waste gases
发明人：HOFMANN DAGMAR; HOFMANN JOSEFA; HEINRICH MARKUS
权利人:Friedrich-Alexander-Universität Erlangen-Nürnberg
摘要:The present invention relates to a process for the synthesis of aryldiazonium salts using nitrogen oxides in oxygen-containing gas streams, especially from industrial waste gases.

专利号:WO-2024148707-A1
优先权日:2023-01-13
标 题:Polyimide precursor and synthetic method therefor, and photosensitive resin composition comprising polyimide precursor
发明人：WANG ZHOUDONG; SHAN LIANG; HE CHUAN; Zhou Xuanzhi; ZHANG GUOPING; SUN RONG
权利人:SHENZHEN INSTITUTE OF ADVANCED ELECTRONIC MAT
摘要:Disclosed in the present invention are a polyimide precursor and a synthetic method therefor, and a photosensitive resin composition comprising the polyimide precursor. The synthesis method comprises: in a solvent, reacting a dianhydride, an alcohol having a free radical polymerizable unsaturated double bond, and a side-chain modifier under the catalysis of a basic catalyst; adding a dehydration condensation agent thereto, and stirring the mixture; adding a diamine thereto for reaction, finally adding an end-capping agent to quench the reaction, and filtering the mixture; and adding the filtrate to a poor solvent within 0-2 h, precipitating a solid polyimide precursor resin, and refrigerating same, wherein the side-chain modifier is selected from any one or more of an alcohol side-chain modifier, an ether alcohol side-chain modifier and an amine side-chain modifier; and the end-capping agent is selected from any one or more of an alcohol end-capping agent, an ether alcohol end-capping agent and an amine end-capping agent. On the basis of not changing the main structure of the polyimide precursor, the present invention improves the dissolvability of the functional resin, controls the dissolution rate thereof, and ensures the performance of the final polyimide film after the functional resin has been heated and cured.

专利号:CN-115836048-A
优先权日:2020-06-11
标 题:Synthesis of N- (2, 4-dinitrophenyl) -4-nitrobenzamide (TNBA) using a solid acid catalyst

专利号:RU-2074182-C1
优先权日:1992-11-27
标 题 :Derivatives of 5-amino-2-(n-aminophenyl)benzimidazole as monomer for synthesis of high resistant thermal stable anion exchange polymer materials

专利号:US-4109093-A
优先权日:1975-01-14
标 题:Process for making 2-(4'-aminophenyl) 5-amino benzimidazole
发明人：ARSAC AIME JOSEPH; FRANK PIERRE
权利人:UGINE KUHLMANN
摘要:A process for preparing 2-(4'-aminophenyl) 5-amino benzimidazole, a known intermediate used in the synthesis of azo dyes, is disclosed wherein p-nitrobenzoic acid is condensed with aniline, and the N(4'-nitrobenzoyl) aniline produced is dinitrited to N(4'-nitrobenzoyl) 2,4-dinitroaniline; the latter is reduced to the corresponding triamine, which, upon cyclodehydration, results in the 2-(4'-aminophenyl) 5-amino benzimidazole.

专利号:SU-858316-A1
优先权日:1979-12-17
标题:2,5-di-(n-aminophenyl)pyramidine as monomer for synthesis of polymides,method of producing same and polyimides on its base as heat resistant material