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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 495855Generated: October 30, 2026

Water → (2R)-N-methyl-2-methylamino-3-(thiophen-2-yl)propionamide

https://huagongshe.com/reaction/495855

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTrifluoroacetic acidHCID 6422—
ReactantSodium BicarbonateHCID 516892—
ReactantN-Methyl-N-((1R)-1-(methylcarbamoyl)-2-(thiophen-2-yl)ethyl)carbamic acid tert-butylesterHCID 10494327—
SolventDichloromethaneHCID 6344—
Product(2R)-N-methyl-2-methylamino-3-(thiophen-2-yl)propionamideHCID 1053597390.1%

Reaction Conditions

Temperature0 °C

Reaction Steps

N-Methyl-N-((1R)-1-(methylcarbamoyl)-2-(thiophen-2-yl)ethyl)carbamic acid tert-butylester (1.17 g; 3.92 mmol) was dissolved in methylene chloride (4 ml). The reaction was cooled to 0° C. and triflouroacetic acid was added. The mixture was stirred at room temperature for 1.5 hour. Water (30 ml) and solid sodium hydrogencarbonate were added to pH 8. The phases were separated. The aqueous phase was extracted with methylene chloride (4×20 ml). The combined organic phases were dried over magnesium sulfate and the solvent was removed over vacuo to afford 0.70 g of (2R)-N-methyl-2-methylamino-3-(thiophen-2-yl)propionamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06939880B2
Source datasetuspto-grants-2005_09
ORD IDord-585a53a6517d43fb866f437e3a05261e
Source noteuspto-grants-2005_09