Sulfonium ylides. 6. New reaction of intramolecular cyclization of phthalimido-containing keto-stabilized sulfonium ylides

Article abstract of DOI:10.1007/BF01433752

The thermal transformations of phthalimido-substituted keto-stabilized sulfonium ylides, including optically active ylides, were studied. The thermolysis of sulfonium ylides obtained from α and β-amino acids leads to methylthio-substituted pyrrolizidine-