反应详情

A mixture of 95 grams (0.5 moles) of 2,5-dimercapto-1,3,4-thiadiazole and 49.0 grams (0.5 moles) of maleic anhydride in 500 ml. tetrahydrofuran was refluxed for six hours. After distilling off the solvent, a light tan solid (123 g.) was obtained (m.p. 194°-196° C.). Its infrared spectrum and elemental analysis appeared to be consistent with the proposed structure.

1. distillationAfter distilling off the solvent
2. customa light tan solid (123 g.) was obtained (m.p. 194°-196° C.)