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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 131053Generated: October 25, 2026

Triethylamine → Tert-butyl 2-(4-nitrophenylamino)propionate

https://huagongshe.com/reaction/131053

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactantp-FluoronitrobenzeneHCID 9590—
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantL-Alanine 1,1-dimethylethyl esterHCID 89016—
SolventWaterHCID 962—
ProductTert-butyl 2-(4-nitrophenylamino)propionateHCID 5859613633.6%

Reaction Conditions

Temperature70 °C

Reaction Steps

388 mg of 4-fluoronitrobenzene, 500 mg of L-alanine tert-butyl ester and 0.9 ml of Et3N were added to a solution of 10 ml of N-methylpyrrolidinone. The reaction medium was heated at 70° C. for 20 hours and, after cooling to room temperature, then poured into a water and ice mixture. The yellow precipitate formed was filtered off, re-slurried in water and then dried over P2O5. 246 mg of tert-butyl 2-(4-nitrophenylamino)propionate (10) were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07384432B2
Source datasetuspto-grants-2008_06
ORD IDord-79adefcb38fd4457bda61c8c9d8bb863
Source noteuspto-grants-2008_06