Synthesis of substituted pyridines from 1,2-nucleophilic addition products of functionalized N-acy1-2,3-dihydropyridones
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KünyeGüzel, M., Watts, J., McGilvary, M., Wright, M. ve Kiren, S. (2015). Synthesis of substituted pyridines from 1,2-nucleophilic addition products of functionalized N-acy1-2,3-dihydropyridones. Tetrahedron Letters, 56(38), 5275-5277. https://dx.doi.org/10.1016/j.tetlet.2015.07.045
We describe herein a general and efficient synthetic approach toward substituted pyridines from functionalized N-acy1-2,3-dihydropyridones in two steps; 1,2-addition with organocerium reagents and subsequent oxidative aromatization with chloranil. This strategy allows the generation of pyridines with various substitution patterns and introduces a variety of substituents including aryl, alkyl, alkynyl, alkenyl, and heteroaryl groups at the desired positions.