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
作者:Saurav Bera、Gautam Panda
DOI:10.1039/c4ob00639a
日期:——
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
通过分子内1,3-高效,通用和实用地合成各种3,4-二氢吡嗪,6,7-二氢-[1,2,3]三唑并吡嗪和7,8-二氢-[1,2,3]三唑并二氮杂pine描述了从氨基酸衍生的常见中间体以高收率进行偶极环加成。此外,在此方法中,还可以通过一锅获得光学活性的3-芳基取代的6,7-二氢-[1,2,3]三唑并[1,5- a ]吡嗪在钯-铜共催化体系中的应用。工作。容易获得的基材和操作简便性使该工艺适合于进一步探索。