An aryl thiol–vinyl azide coupling reaction and a thiol–vinyl azide coupling/cyclization cascade: efficient synthesis of β-ketosulfides and arene-fused 5-methylene-2-pyrrolidinone derivatives
The addition reaction of thiol to vinyl azide has been extensively studied. Variously substituted aryl thiols are all viable for this coupling process. The scope of the other partner is successfully expanded from α-aryl vinyl azide to α-alkyl vinyl azide. A thiol–vinyl azide coupling/cyclization cascade is realized with substituted aryl vinyl azides carrying a 2-methoxycarbonyl group. The value of
Synthesis and characterization of new mono-, bis-, and tris-oxamato proligands
作者:Christophe Stroh、Alexandrina Stuparu
DOI:10.1016/j.tetlet.2010.07.117
日期:2010.9
This communication presents the synthesis and the characterization of new organic molecules bearing up to three N-phenyl-oxalamic acid ethyl esters. The syntheses are based on Sonogashira-type cross-coupling reactions with preformed oxalamic ester intermediate building blocks. The short synthetic pathways lead easily to valuable potential oxamato-bridging ligands with overall interesting yields.