1383479-59-1Relevant articles and documents
Synthesis of iminoisoindolinones via a cascade of the three-component Ugi reaction, palladium catalyzed isocyanide insertion, hydroxylation and an unexpected rearrangement reaction
Ren, Zhi-Lin,He, Ping,Lu, Wen-Ting,Sun, Mei,Ding, Ming-Wu
, p. 6322 - 6331 (2018)
A robust ligand-free palladium-catalyzed cascade reaction for the synthesis of diversely substituted iminoisoindolinones has been developed. The cascade reaction involves isocyanide insertion into Ugi-3CR adducts, accompanied by unexpected hydroxylation and rearrangement.
Azo disperse dye compound, synthesis method thereof and application of compound
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, (2019/01/23)
The invention provides an azo disperse dye compound, a synthesis method thereof and an application of the compound. The synthesis method particularly includes the steps: (1) Ugi reaction: performing Ugi four-component reaction on aldehyde, aniline, methanoic acid and cyclohexyl isocyanides in organic solvents, filtering reaction liquid and washing the reaction liquid with the organic solvents to obtain Ugi products; (2) hydrolysis reaction: adding the Ugi products and acid into alcohols solvents to perform selective hydrolysis, and performing neutralization, organic solvent extraction, vacuumconcentration and drying on the reaction liquid to obtain hydrolysis products, namely, synthesizing coupling components of azo disperse dyes; (3) coupling reaction: coupling the obtained coupling components with 4-nitrophenyl diazonium salt in mixed solvents of alcohols and water, adjusting the pH (potential of hydrogen) value of the reaction liquid and filtering, washing and drying solids to obtain the azo disperse dye compound. The molecular weight and the molecular volume of the dyes can be effectively regulated, amide genes are led in, and dyeing properties for polyester fibers and polyamide fibers can be greatly improved.
Cellulose-SO3H as a biodegradable solid acid catalyzed one-pot three-component Ugi reaction: Synthesis of α-amino amide, 3,4-dihydroquinoxalin-2-amine, 4H-benzo[b][1,4]thiazin-2-amine and 1,6-dihydropyrazine-2,3-dicarbonitrile derivatives
Mofakham, Hamid,Hezarkhani, Zeinab,Shaabani, Ahmad
experimental part, p. 26 - 34 (2012/08/13)
A variety of amines has become utilized in the three-compound Ugi reaction and synthesis of 3,4-dihydroquinoxalin-2-amine, 4H-benzo[b][1,4]thiazin-2-amine and 1,6-dihydropyrazine-2,3-dicarbonitrile derivatives in the presence of cellulose sulfuric acid as