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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1370536Generated: October 30, 2026

Dimethyl Sulfate → HCID 9807772, compound

https://huagongshe.com/reaction/1370536

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfateHCID 6497—
ReactantFumaric AcidHCID 444972—
ReactantHCID 18511648HCID 18511648—
SolventEthanolHCID 702—
SolventDimethylformamideHCID 6228—
ProductHCID 9807772HCID 9807772—

Reaction Conditions

Temperature25 °C

Reaction Steps

A solution of 1 g (2.35 mmol) of the preceding thiourea (10.2) in 10 ml of DMF is treated at 25° C. with 245 μl of dimethyl sulfate, stirred overnight at 25° C. and then heated for 1 h at 60° C. The mixture is evaporated to dryness and the residue is recovered in the usual way and purified by flash chromatography to give 325 mg (Yd: 32%) of a light yellow oil. This oil is taken up in ethanol and salified with a solution of 80 mg of fumaric acid in the same solvent to give 340 mg (Yd: 26%) of compound of formula:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06583159B1
Source datasetuspto-grants-2003_06
ORD IDord-2acb2266e66b49459f187569aeac18c6
Source noteuspto-grants-2003_06