Preparation of Sydnone Compounds Substituted by Thio and Seleno Functional Groups at the 4-Positions

Article abstract of DOI:10.1246/bcsj.59.487

The introduction of thio and seleno functional groups to the 4-position of a sydnone ring was successfully attempted using 4-lithiosydnones (2) and 4-bromosydnones (3) as starting compounds.The reaction of 2 with tetraalkylthiuram disulfides, bis