Cascade synthesis of spirooxindole δ-lactone derivatives through N-aryl hydroxymethylacrylamides with xanthates
摘要:
A novel and highly efficient cascade synthesis of spirooxindole delta-lactone derivatives from N-aryl hydroxymethylacrylamides and xanthates in good yields is described. The reaction proceeds through a radical addition/cyclization and ester exchange, in which two new C-C bonds and one C-O bond were formed. (C) 2015 Elsevier Ltd. All rights reserved.