<i>tert</i>-Butyl 2-Amino-3-cyano-5-oxo-4-phenyl-5,7-dihydropyrano[2,3-<i>c</i>]pyrrole-6(4<i>H</i>)-carboxylate

oleh: Mišel Hozjan, Luka Ciber, Franc Požgan, Jurij Svete, Bogdan Štefane, Uroš Grošelj

Format: Article
Diterbitkan: MDPI AG 2023-02-01

Deskripsi

Organocatalyzed synthesis of <i>tert</i>-butyl 2-amino-3-cyano-5-oxo-4-phenyl-5,7-dihydropyrano[2,3-<i>c</i>]pyrrole-6(4<i>H</i>)-carboxylate, prepared from Boc-tetramic acid and benzylidenemalononitrile, is disclosed. Two bifunctional noncovalent organocatalysts were employed, yielding the product as a racemic mixture in both cases. The structure of the new synthesized compound was confirmed by high resolution mass-spectrometry, <sup>1</sup>H- and <sup>13</sup>C-NMR, HSQC, and IR spectroscopy.