Synthesis of 1,3,4-Oxadiazole-Based Aromatic and Heterocyclic/Phenylpyrazole Derivatives
作者:Li-Ya Wang、En-Chiuan Chang、Mou-Yung Yeh、Yu Hsuan Chung、Jiann-Jyh Huang、Fung Fuh Wong
DOI:10.1002/hc.21151
日期:2014.5
A new series of 1,3,4-oxadiazole-based aromatic and heterocyclic/phenylpyrazole derivatives 6a–c, 7a–d, and 8 were synthesized via sequential 1,3-dipolar cyclization, hydrazidation, benzoylation, dehydrative cyclization, and the Suzuki coupling reaction. Among the derivatives, compounds 7a and 7c with the corresponding 2-thienyl and 2-benzo[b]thienyl (Ar) at the phenyl group located at the N-1 position
通过顺序 1,3-偶极环化、酰肼化、苯甲酰化、脱水环化和 Suzuki 合成了一系列新的基于 1,3,4-恶二唑的芳香族和杂环/苯基吡唑衍生物 6a-c、7a-d 和 8偶联反应。在衍生物中,化合物7a和7c在位于吡唑N-1位的苯基上具有相应的2-噻吩基和2-苯并[b]噻吩基(Ar)表现出更好的共轭范围。