Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 365532Generated: October 30, 2026

Hydrochloric Acid → HCID 54292766, compound

https://huagongshe.com/reaction/365532

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
Reactant3-Methyl-2-butenoyl chlorideHCID 102394—
Reactant298185-50-9HCID 23291925—
SolventDichloromethaneHCID 6344—
ProductHCID 54292766HCID 54292766—

Reaction Conditions

Temperature0 °C

Reaction Steps

(3-Bromo-4-methyl-phenyl)-isopropyl-amine (Compound 41, 36.78 g, 161.2 mmol) was dissolved in dichloromethane (200 mL) and the solution was cooled to 0° C. and treated with 3,3-dimethylacryloyl chloride (28.6 g, 241.8 mmol) and then pyridine (36 mL). The solution was stirred at 0° C. for 1 hour and at room temperature for 5 hours. The mixture was poured into separatory funnel containing dichloromethane and 10% aqueous HCl. The layers were separated and the aqueous layer extracted twice with dichloromethane. The combined organic layers were washed with water and brine, dried with MgSO4, filtered, and concentrated under reduced pressure to give the title compound, which was used directly for the next reaction without further purification, as a solid: Rf=0.48, 20% ethyl acetate in hexane:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06127382
Source datasetuspto-grants-2000_10
ORD IDord-eb6d264697cd41c6963104fe661b417e
Source noteuspto-grants-2000_10