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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 38273Generated: October 26, 2026

Dimethylformamide → 4-(1-Methyl-2-oxo-2-phenylethyl)-1-piperazinecarboxylic acid, 1,1-dimethylethyl Ester

https://huagongshe.com/reaction/38273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
Reactant2-Phenylpropionic acidHCID 10296—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
SolventDiethyl EtherHCID 3283—
Product4-(1-Methyl-2-oxo-2-phenylethyl)-1-piperazinecarboxylic acid, 1,1-dimethylethyl EsterHCID 86631060—

Reaction Steps

To N-BOC-piperazine (0.373 g) in DMF (10 ml) was added HATU (1.14 g) followed by 2-phenylpropionic acid (0.30 ml) and the reaction stirred at RT for 16 h followed by 60° C. for 1 h. The reaction was cooled to RT, then diluted with diethyl ether, washed with water (×3), 2M HCl (×2), saturated aq. NaHCO3 (aq) (×2), dried (Na2SO4) and concentrated in vacuo to give the sub-titled compound (0.25 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524715B2
Source datasetuspto-grants-2013_09
ORD IDord-16acc7c4cde945e59cce37a822ebe269
Source noteuspto-grants-2013_09