887917-95-5Relevant academic research and scientific papers
Catalytic enantioselective 1,3-dipolar cycloaddition of azomethine ylides with vinyl sulfones
Llamas, Tomas,Arrayas, Ramon Gomez,Carretero, Juan C.
, p. 1795 - 1798 (2007/10/03)
A general protocol for the enantioselective catalytic 1,3-dipolar cycloaddition of azomethine ylides with aryl vinyl sulfones is described. Nearly complete exo selectivity and enantioselectivities up to 85% ee are attained with Cu(CH3CN)4
A convenient procedure for the catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides and alkenes
Alemparte, Carlos,Blay, Gonzalo,Jorgensen, Karl Anker
, p. 4569 - 4572 (2007/10/03)
(Chemical Equation Presented) Silver fluoride and cinchona alkaloids catalyze the diastereo- and enantioselective 1,3-dipolar cycloaddition between azomethine ylides, generated from N-alkylideneglycine esters, and acrylates to give the corresponding endo-adducts. Azomethine ylides derived from aromatic and aliphatic aldehydes react in a highly diastereoselective reaction with good yields and enantioselectivities of the substituted pyrrolidines.
