Synthesis of 2, 3-Dihydro-1, 4-dithiins and 2-Alkylidene-1, 4-dithianes by 1, 2-Sulfur Migration in 2-(1-Hydroxyalkyl)-1, 3-dithiolanes

~%

~%

~93%

~96%

~75%

~%

~%

~%

~97%

~24%

~%

~%

~%

~%