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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2044146Generated: November 1, 2026

Sulfuric Acid → HCID 21900811, compound

https://huagongshe.com/reaction/2044146

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAmmonium nitrateHCID 22985—
ReactantThioureaHCID 2723790—
ReactantHCID 21900598HCID 21900598—
SolventMethanolHCID 887—
SolventTolueneHCID 1140—
ProductHCID 21900811HCID 2190081181%

Reaction Steps

305 g of thiourea, 3000 ml of methanol, 1500 ml of toluene, 10 g of ammonium nitrate, and 325 g of 1,3-bis(β-epoxypropylthiomethyl)benzene 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, 288 g of 1,3-bis(β-epithiopropylthiomethyl)benzene (in formula (7), p=1, q=1) was obtained. The yield was 81%. The results are shown in Table 2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08586766B2
Source datasetuspto-grants-2013_11
ORD IDord-da4c6852f50446128b467258a69e4551
Source noteuspto-grants-2013_11