Cobalt carbonyl-catalyzed carbonylation of functionalized aziridines to versatile β-lactam building blocks
作者:Nicola Piens、Kristof Van Hecke、Dieter Vogt、Matthias D'hooghe
DOI:10.1039/c7ob00832e
日期:——
carbonylation of different classes of non-activated aziridines with diverse substitution patterns was investigated. Special attention was devoted to selectivity issues and reaction optimization. This study resulted in the regio- and stereospecific synthesis of 24 novel β-lactam target structures in high yields on a multigram scale. The synthetic potential of the newly obtained azetidin-2-ones was illustrated
A new approach towards 1-phenyl and 1-benzyl substituted 2-(aminomethyl)cyclopropanecarboxamides as novel derivatives of the antidepressant Milnacipran
作者:Karel Vervisch、Matthias D'hooghe、Karl W. Törnroos、Norbert De Kimpe
DOI:10.1039/b904611a
日期:——
2-(2-Cyano-2-phenylethyl)aziridines were converted into novel trans-2-aminomethyl-1-phenylcyclopropanecarboxamides via regiospecific ring opening and 3-exo-tet cyclisation, thus providing the first convenient entry into the trans-isomer of Milnacipran as a useful template for further derivatisation. Furthermore, unprecedented 2-aminomethyl-1-benzylcyclopropanecarboxamides have been synthesized using