5039-15-6Relevant articles and documents
Copper-Catalyzed Coupling of Oxime Acetates with Isothiocyanates: A Strategy for 2-Aminothiazoles
Tang, Xiaodong,Zhu, Zhongzhi,Qi, Chaorong,Wu, Wanqing,Jiang, Huanfeng
, p. 180 - 183 (2016)
A new strategy for 2-aminothiazoles is developed via the copper-catalyzed coupling of oxime acetates with isothiocyanates. Various 4-substituted and 4,5-disubstituted 2-aminothiazoles were formed smoothly under mild reaction conditions. This process involved copper-catalyzed N-O bond cleavage, activation of vinyl sp2 C-H bonds, and C-S/C-N bond formations. It is noteworthy that the oxime acetates were used not only as a substrate but also as a single oxidant.
Method for synthesizing novel 2-aminothiazole ring derivatives
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Paragraph 0066; 0067; 0068, (2018/11/27)
The invention discloses a method for synthesizing 2-aminothiazole ring derivatives and belongs to the technical field of organic synthesis. The method comprises that an ethylbenzene compound, dibromohydantoin DBH and t-butyl hydroperoxide TBHP are sequentially added to water, the solution undergoes a reaction at 60 DEG C, the reaction product is cooled, an inorganic base and a thiourea compound are orderly added into the reaction product and the mixture undergoes a reaction at 80 DEG C to produce desired product 2-aminothiazole ring derivatives. The method has the advantages of high yield, mild reaction, low cost and environmental friendliness.
Method for synthesizing 1,3-substituted thiazole ring compound by styrene compound
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Paragraph 0068; 0069; 0070, (2018/01/12)
The invention discloses a method for synthesizing a 1,3-substituted thiazole ring compound by a styrene compound, and belongs to the technical field of synthesis of thiazole ring compounds. The method is characterized by comprising the following steps: dissolving the styrene compound and a phase transfer catalyst into water, adding dibromohydantoin DBH, carrying out a reaction at 60 DEG C, spin-drying after the reaction and dissolving into an organic solvent, adding a thiourea compound and performing reflux reaction to prepare a target product 1,3-substituted thiazole ring compound. The synthesis method provided by the invention is high in yield, mild in reaction, low in cost and environmentally friendly.