- Facile one pot synthesis of N-fused 1,2,4-triazoles via oxidative cyclisation using DDQ
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A facile and expedient one pot synthesis of N-fused 1,2,4-triazoles from 2-hydrazinopyridines or 2-hydrazinopyrazines and aldehydes is described via oxidative cyclization using DDQ as a safe and convenient oxidizing agent and polyethylene glycol as recyclable reaction medium. This protocol is effective toward various substrates having different functionalities. The easy recyclability of the reaction medium makes the process economic and potentially viable for commercial applications.
- Bhatt, Ashish,Singh, Rajesh K.,Kant, Ravi
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p. 236 - 247
(2018/11/23)
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- Synthesis of 1,2,4-Triazolo[4,3-a]pyridines and Related Heterocycles by Sequential Condensation and Iodine-Mediated Oxidative Cyclization
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A facile and efficient approach to access 1,2,4-triazolo[4,3-a]pyridines and related heterocycles has been accomplished through condensation of readily available aryl hydrazines with corresponding aldehydes followed by iodine-mediated oxidative cyclizatio
- Li, Ertong,Hu, Zhiyuan,Song, Lina,Yu, Wenquan,Chang, Junbiao
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p. 11022 - 11027
(2016/07/27)
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- A simple and efficient synthesis of 3,4,5-trisubstituted/N-fused 1,2,4-triazoles via ceric ammonium nitrate catalyzed oxidative cyclization of amidrazones with aldehydes using polyethylene glycol as a recyclable reaction medium
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An environmentally benign protocol is described for the synthesis of 3,4,5-trisubstituted 1,2,4-triazoles and N-fused 1,2,4-triazoles via ceric ammonium nitrate catalyzed oxidative cyclization of amidrazones and aldehydes using polyethylene glycol as recyclable reaction medium. This protocol is effective toward various substrates having different functionalities. The easy recyclability of the reaction medium makes the process economic and potentially viable for commercial applications.
- Nakka, Mangarao,Tadikonda, Ramu,Rayavarapu, Srinuvasarao,Sarakula, Prasanthi,Vidavalur, Siddaiah
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p. 517 - 525
(2015/02/19)
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