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Articles by Ikyon Kim
Catalyst-Free Assembly of Poly-Functionalized 1,2,4-Triazole-Fused N-Heterocycle, 6-Acylated Pyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine
Catalyst-Free Assembly of Poly-Functionalized 1,2,4-Triazole-Fused N-Heterocycle, 6-Acylated Pyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine A catalyst-free synthetic route to a new 1,2,4-triazole-pyrrolo[1,2-a]pyrazine hybrid system, 6-acylpyrrolo[1,2-a][1,2,4]triazolo[3,4-c]pyrazine, was realized upon sequential exposure of pyrrole-2-carbonitrile-derived substrate to DMF-DMA and acyl hydrazide through which acylated pyrazine and 1,2,4-triazole rings were consecutively formed with formation of...
Catalyst-free assembly of a polyfunctionalized 1,2,4-triazole-fused N-heterocycle, 6-acylated pyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine
Catalyst-free assembly of a polyfunctionalized 1,2,4-triazole-fused N-heterocycle, 6-acylated pyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine† A catalyst-free synthetic route to a new 1,2,4-triazole-pyrrolo[1,2-a]pyrazine hybrid system, 6-acylpyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine, was realized upon sequential exposure of pyrrole-2-carbonitrile-derived substrates to DMF-DMA and acyl hydrazide through which acylated pyrazine and 1,2,4-triazole rings were consecutively formed with the...
Regioselective Access to 1,2,4-Triazole-Fused N-Heterocycle, Pyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine, via Double Dehydrative Cyclizations
A highly efficient and regioselective approach to a novel 1,2,4-triazole-fused N-heterocyclic scaffold, pyrrolo[1,2-a][1,2,4]triazolo[3,4-c]pyrazine, was established by base-promoted reaction of pyrrole-2-carbonitrile-derived substrate with acyl hydrazide where domino double ring closures comprised of enamine formation, attack on nitrile, and cyclodehydration enabled sequential construction of pyrazine and 1,2,4-triazole ring systems with formation of three C–N bonds.
Divergent Synthesis of Two Types of Indolizines from Pyridine-2-acetonitrile, (Hetero)arylglyoxal, and TMSCN
Divergent Synthesis of Two Types of Indolizines from Pyridine-2-acetonitrile, (Hetero)arylglyoxal, and TMSCN Seonghyeon Nam, Sunhee Lee, Woojin Kim and Ikyon Kim Abstract Described herein is divergent synthesis of two types of indolizines via construction of pyrrole moiety from pyridine-2-acetonitriles, arylglyoxals, and TMSCN.
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