Recyclable C2-symmetric tertiary amine-squaramide organocatalysts: Design and application to asymmetric synthesis of γ-nitrocarbonyl compounds
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron"
DOI: 10.1016/j.tet.2018.07.043
Abstract: Abstract Simple C2-symmetric chiral tertiary amines bearing squaramide fragments along with the 1,2-di(pyridin-2-yl)ethane spacer group have been synthesized. Among them, amine 8b with a different configuration of stereocenters in 1,2-di(pyridin-2-yl)ethane and 1,2-diaminocyclohexane units efficiently catalyzed… read more here.
Keywords: organocatalysts design; symmetric tertiary; amine squaramide; tertiary amine ... See more keywords
Synthesis of Bifunctional Amine-Squaramide Organocatalysts Derived from 3-((Dimethylamino)methylene)camphor.
Sign Up to like & getrecommendations! Published in 2024 at "Acta chimica Slovenica"
DOI: 10.17344/acsi.2024.8757
Abstract: Four bifunctional, noncovalent amine-squaramide organocatalysts were prepared from camphor in five steps. The stereochemistry of the prepared catalysts was thoroughly analyzed using various spectroscopic techniques. Their organocatalytic activity was investigated in the Michael addition of… read more here.
Keywords: squaramide organocatalysts; camphor; synthesis bifunctional; amine squaramide ... See more keywords