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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390418Generated: October 29, 2026

Sulfuric Acid → HCID 58066682, compound

https://huagongshe.com/reaction/390418

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAcetyl chlorideHCID 6367—
ReactantHCID 58066681HCID 58066681—
CatalystSulfuric AcidHCID 1118—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 58066682HCID 58066682—

Reaction Conditions

Temperature50 °C

Reaction Steps

N-[3-tert-Butylsulfanylmethyl-4-(4-cyanomethyl-pyrazol-1-ylmethyl)-phenyl]-2,2-dimethyl-propionamide (0.080 g, 0.20 mmol) in EtOH (10 mL) was treated with sulfuric acid (10 drops) and stirred at 50° C. for 2 hours. No reaction was observed, so additional sulfuric acid (0.5 mL) was added, and the reaction was stirred at 62° C. overnight. A small amount of product was observed, so the mixture was diluted with H2O and extracted with EtOAc to isolate a mixture of starting material and product. The mixture was dissolved in EtOH (10 mL) and treated with acetyl chloride (0.29 mL, 4.0 mmol). The reaction was stirred overnight at 62° C., after which time the reaction was complete. The mixture was partitioned between EtOAc and H2O, and the organic layer was separated and purified by preparative HPLC to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383654B2
Source datasetuspto-grants-2013_02
ORD IDord-d1064b2ff6cd4615b40dac4d06c3232b
Source noteuspto-grants-2013_02