Y. Vallee et al., GENERATION BY FLASH VACUUM THERMOLYSIS AND CYCLIZATION OF METHYL PENTA-2,4-DIENEDITHIOATE, Tetrahedron letters, 34(16), 1993, pp. 2605-2608
Methyl penta-2,4-dienedithioate was generated by flash vacuum thermoly
sis of two precursors. It was found to be unstable and gave 6-methylth
io-(2H)-thiopyran by a pericyclic cyclization