Tetrazole is an important five-membered aromatic heterocycle with poly-nitrogen electron-
rich planar structural feature. This unique structure endows tetrazole derivatives as drugs …

Аннотация Систематизированы и проанализированы литературные данные по
химическим свойствам α-цианотиоацетамида—удобного исходного реагента для …

A new group of pyrimidine derivatives of indane-1, 3-dione were synthesized aiming at the
synthesis of new compounds acting as analgesic, anti-inflammatory and antimicrobial …

A one-pot, three-component condensation reaction of an aldehyde, 3-amino-5-
methylpyrazole and ethyl cyanoacetate in ethanol to give 4-aryl-3-methyl-6-oxo-4, 5, 6, 7 …

Abstract Reaction of 3‐cyano‐4, 6‐dimethyl‐2‐pyridone with ethyl chloroacetate afforded
ethyl 2‐([3‐cyano‐4, 6‐dimethylpyridin‐2‐yl] oxy) acetate 2 and ethyl 2‐(3‐cyano‐4, 6 …

摘要四唑是一种重要的五元芳杂环, 具有多氮富电子的平面结构特征. 这种特殊的结构使得四唑
类化合物作为药物, 炸药, 功能材料等在医学, 农学, 材料科学等众多领域具有广泛的应用前景 …

A specific route for the synthesis of a novel benzo [4, 5] thiazolo [2, 3-b] quinazoline (IVa–
e),(VIa–e),(VIIa–e),(VIIIa–e),(IXa–e), and (Xa–e) derivatives, where established using …

A series of 2-H/methyl-3-phenyl-5-alkyl/aryl/heteroaryl-7-trifluoromethylpyrazolo [1, 5-a]
pyrimidines (4a–l) were synthesized by refluxing 3 (5)-amino-4-phenyl-5 (3)-H/methyl-1H …

Several novel chalcone derivatives containing malonate and pyridine moieties were
synthesized, and their structures were confirmed by 1 H nuclear magnetic resonance, 13 C …

An environmentally benign, simple, efficient, and convenient route is described for the
synthesis of novel pyrazolo [1, 5-a] pyrimidine derivatives under ultrasound irradiation …