Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2267423Generated: October 30, 2026

Lawesson's reagent → HCID 60204552, compound

https://huagongshe.com/reaction/2267423

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
Reactant5-chloro-2-(methylsulfanyl)-N'-(phenylacetyl)pyrimidine-4-carbohydrazideHCID 17586552—
SolventWaterHCID 962—
SolventPyridineHCID 1049—
ProductHCID 60204552HCID 6020455247%

Reaction Conditions

Temperature100 °C

Reaction Steps

Lawesson's Reagent (0.487 g (1.2 mmol) and 5-chloro-2-(methylthio)-N′-(2-phenyl-acetyl)pyrimidine-4-carbohydrazide (0.442 g, 1.2 mmol) were dissolved in 8 mL pyridine. This solution was heated to 100° C. for 30 h, giving ˜50% conversion. Upon cooling, the reaction mixture was diluted with excess H2O. The aqueous layer was extracted with EtOAc. The combined organic layers were dried with magnesium sulfate and concentrated under vacuum. Flash chromatography was used to obtain 0.190 g (47% yield) product as a brown solid. MS (M+H)+ 335.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07858785B2
Source datasetuspto-grants-2010_12
ORD IDord-73c10348770d4e67af2a67a21b197820
Source noteuspto-grants-2010_12