An efficient and versatile mechanochemical route for the synthesis of chromene and isoindolo[2,1- a ]quinazoline scaffolds has been developed via a simple mortar and pestle liquid-assisted grinding method using 2,2,2-trifluoroethanol (TFE) as an efficient catalyst. The present protocol is very efficient as it offers reaction in mild reaction condition, cleaner reaction profiles, effortless work-up
通过使用2,2,2-三氟乙醇(TFE)作为简单的研钵和研杵液体辅助研磨方法,已经开发了一种用于合成色烯和异吲哚并[2,1- a ]喹唑啉支架的有效且通用的机械化学路线。 催化剂。本方案非常有效,因为它可以在温和的反应条件下提供反应,反应曲线更干净,纯化步骤轻松,纯度高,反应时间短,所需产物的收率高。
Synthesis and in vitro Antibacterial Activities of 5-(2,3,4,5-Tetrahydro-1H-chromeno[2,3-d]pyrimidin-5-yl)pyrimidione Derivatives
,3‐d]pyrimidin‐5‐yl)pyrimidionederivatives have been synthesized from substituted salicylaldehydes and barbituric acid or 2‐thiobarbituric acid in water catalyzed by phase transfer catalysis of triethylbenzyl ammonium chloride (TEBA). Elemental analysis, IR, 1H NMR, and 13C NMR elucidated the structures of all the newly synthesized compounds. In vitro antimicrobial activities of synthesized compounds
从取代的水杨醛和巴比妥酸或2-硫代巴比妥酸合成了一系列新颖的5-(2,3,4,5-四氢-1H-铬基[2,3 - d ]嘧啶-5-基)嘧啶酮衍生物三乙基苄基氯化铵(TEBA)的相转移催化在水中催化 元素分析,IR,1 H NMR和13 C NMR阐明了所有新合成化合物的结构。已研究了合成化合物对大肠杆菌,枯草芽孢杆菌,金黄色葡萄球菌和铜绿假单胞菌的体外抗菌活性。。这些新合成的衍生物表现出显着的体外抗菌活性。
Extending the scope of oleic acid catalysis in diversity-oriented synthesis of chromene and pyrimidine based scaffolds
non-toxic, biodegradable oleicacid was found to catalyse 4H-chromene derivatives syntheses in good yields in a water medium. A facile domino one-pot protocol was also developed for the oleicacid catalysed pyrimidine-fused heterocycle synthesis by pseudo three-component, three-component and four-component reactions. All the products were obtained in good to excellent yields. Oleicacid catalysis was further