914635-88-4Relevant academic research and scientific papers
Synthetic method of 3-acyl pyridine compound
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Paragraph 0097-0099, (2020/03/02)
The invention discloses a 3-acyl pyridine compound synthetic method, which belongs to the technical field of organic synthesis. The synthetic method takes an enaminone compound and an alpha, beta-saturated ketone compound or an alpha, beta-saturated aldeh
Synthesis of Functionalized Pyridines via Cu(II)-Catalyzed One-Pot Cascade Reactions of Inactivated Saturated Ketones with Electron-Deficient Enamines
Chen, Guang,Wang, Ze,Zhang, Xinying,Fan, Xuesen
, p. 11230 - 11237 (2017/10/27)
In this paper, a novel and efficient synthesis of 3-acylpyridines and pyridine-3-carboxylates through the oxidative one-pot sequential reactions of inactivated saturated ketones with electron-deficient enamines is presented. Mechanistically, the formation of the title compounds involves the in situ formation of an enone intermediate through an oxidative dehydrogenation of the saturated ketone substrate, followed by its [3+3] annulation with β-enaminone or β-enaminoester via a cascade process, including Michael addition, aldol type condensation, and oxidative aromatization.
Cu-Catalyzed Three-Component Cascade Annulation Reaction: An Entry to Functionalized Pyridines
Jiang, Huanfeng,Yang, Jidan,Tang, Xiaodong,Li, Jianxiao,Wu, Wanqing
, p. 8763 - 8771 (2015/09/15)
A concise copper-catalyzed N-O bond cleavage/C-C/C-N bond formation procedure has been described for the synthesis of multisubstituted pyridines. Various oxime acetates, activated methylene compounds, and a wide range of aldehydes bearing aryl, heteroaryl, vinyl, and trifluoromethyl groups were employed to provide the tri- or tetrasubstituted pyridines with flexible substitution patterns. Moreover, this method features inexpensive catalysts, no need for extra oxidant, and high step-enconomy, which make it pratical and attractive.
Microwave assisted synthesis of 6-aryl-2-methyl-3-[benzothiazinylpyridinyl / 2-aminopyrimidinyl / 2-aminothiazolyl / triazolothiadiazinyl]pyridines
Ashok,Pallavi,Reddy, G. Jagath,Rao, K. Srinivasa
, p. 55 - 61 (2008/09/19)
A number of new 6-Aryl-2-methyl-3-[benzothiazinylpyridinyl / 2-amino pyrimidinyl / 2-aminothiazolyl and triazolothiadiazinyl] pyridines (4 - 7) have been synthesized under microwave irradiation conditions.
