Metal-Free Stereoselective Synthesis of (<i>E</i>)- and (<i>Z</i>)-N-Monosubstituted β-Aminoacrylates via Condensation Reactions of Carbamates
作者:Scott R. Pollack、Amélie Dion
DOI:10.1021/acs.joc.1c01212
日期:2021.9.3
acids and pharmaceuticals. Two efficient, stereoselective methods of preparation, via acid- or base-promoted condensation reactions of carbamates, are described. The base-promoted reaction is E-selective, while acid catalysis can, through the choice of solvent, selectively form E or Z. The acid-catalyzed E-selective process proceeds through a crystallization obviating the need for chromatographic purification