Sulfuric Acid → HCID 21900912, compound

Participants

Reaction Steps

305 g of thiourea, 3000 ml of methanol, 1500 ml of toluene, 10 g of ammonium nitrate, and 373 g of 2,5-bis(β-epoxypropylthiomethyl)-1,4-dithiane were mixed and reacted at 20° C. for 9 hours in a nitrogen atmosphere. During the reaction, no polymer was deposited. After the reaction, 3800 ml of toluene and 460 ml of 10% aqueous solution of sulfuric acid were put to the reaction vessel to extract the reaction product. Then, the extracted product was washed with 300 ml of water four times, and toluene was removed by distillation. As a result, 340 g of 2,5-bis(β-epithiopropylthiomethyl)-1,4-dithiane (in formula (6), p=1, q=1) was obtained. The yield was 83%. The results are shown in Table 4.

Provenance & Evidence