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The synthesis of 2,3-dihydropyrazino[1,2-a]indol-4(1H)-ones from the sequential reaction of amino acid methyl esters with readily available indole-2-ylmethyl acetates is described. The reaction proceeds in situ under basic conditions of highly… Click to show full abstract
The synthesis of 2,3-dihydropyrazino[1,2-a]indol-4(1H)-ones from the sequential reaction of amino acid methyl esters with readily available indole-2-ylmethyl acetates is described. The reaction proceeds in situ under basic conditions of highly unstable and reactive 2-alkylideneindolenines followed by Michael-type addition of α-amino acid methyl esters/intramolecular cyclization.
Keywords:
dihydropyrazino indol;
ones sequential;
synthesis;
indol ones
Journal Title: RSC Advances
Year Published: 2023
Link to full text (if available)
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Journal Title: RSC Advances
Year Published: 2023
Link to full text (if available)
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recommendations!