A rapid entry to amino acid derived diverse 3, 4-dihydropyrazines and dihydro [1, 2, 3] triazolo [1, 5-a] pyrazines through 1, 3-dipolar cycloaddition
S Bera, G Panda
Index: Bera, Saurav; Panda, Gautam Organic and Biomolecular Chemistry, 2014 , vol. 12, # 23 p. 3976 - 3985
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Citation Number: 3
Abstract
An efficient, general and practical synthesis of diverse 3, 4-dihydropyrazines, 6, 7-dihydro-[1, 2, 3] triazolopyrazines and 7, 8-dihydro-[1, 2, 3] triazolodiazepines through intramolecular 1, 3-dipolar cycloaddition from amino acid derived common intermediates with high yields is described. Moreover, one-pot access to optically active 3-aryl substituted 6, 7-dihydro-[1, 2, 3] triazolo [1, 5-a] pyrazines in the palladium–copper co-catalytic system has also been ...
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