A New Cyclisation Involving a Methanesulfinyl Leaving Group Yielding 6-Sulfenylated 2-Amino-4<i>H</i>-5,6-dihydro-1,3,4-thiadiazines
作者:Lal Dhar S. Yadav、Sangeeta Sharma
DOI:10.1055/s-1993-25957
日期:——
Nucleophilic addition of sulfenylated dimethyl sulfoxide derivatives to thiosemicarbazones 3 followed by a new intramolecular cyclisation involving an acid labile methanesulfinyl leaving group yields 6-sulfenylated 2-amino-5-aryl-4H,5,6-dihydro-1,3,4-thiadiazines 6.