SEARCH Articles Figures Tables 1,3-Dithian 1,3-dithiane 2- -l,3-dithian 2- Lithio-2-methyl-l ,3-dithiane 2- Lithio-2-trimethylsilyl-l ,3-dithiane 2-Lithio-2-phenyl-l ,3-dithiane Dithians Lithio-l,3-dithiane Lithio-l,3-dithiane