464-73-3Relevant articles and documents
Dioxindole in asymmetric catalytic synthesis: Direct access to 3-substituted 3-hydroxy-2-oxindoles via 1,4-additions to nitroalkenes
Retini, Michele,Bergonzini, Giulia,Melchiorre, Paolo
, p. 3336 - 3338 (2012/04/17)
The asymmetric Michael addition of dioxindoles to β-substituted nitroalkenes is reported. The bifunctional primary amine-thiourea A, by means of a non-covalent-based mode of catalysis, secures direct access to 3-substituted 3-hydroxyoxindole derivatives with high stereocontrol. The Royal Society of Chemistry 2012.