A Copper-Benzotriazole-Based Coordination Polymer Catalyzes the Efficient One-Pot Synthesis of (N′-Substituted)-hydrazo-4-aryl-1,4-dihydropyridines from Azines

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• 作者：Michael Kallitsakis ; Edward Loukopoulos ; Alaa Abdul-Sada ; Graham J. Tizzard ; Simon J. Coles ; George E. Kostakis and Ioannis N. Lykakis
• 刊名：Advanced Synthesis & Catalysis
• 出版年：2017
• 出版时间：January 4, 2017
• 年：2017
• 卷：359
• 期：1
• 页码：138-145
• 全文大小：1340K
• ISSN：1615-4169

文摘

A series of new (N′-substituted)-hydrazo-4-aryl-1,4-dihydropyridines was successfully synthesized via a facile one-pot catalytic pathway utilizing azines and propiolate esters as starting materials and a one-dimensional copper benzotriazole-based coordination polymer as catalyst. In the absence of catalyst, the corresponding 5-substituted 4,5-dihydropyrazoles were formed in moderate to high yields. Fine-tuning of the catalysts allowed us to gain more insights regarding the plausible reaction mechanism.