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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 735036Generated: October 27, 2026

Phenylpropiolic Acid → 3-Phenylpropynoic acid-[4-(2-diethylaminoethoxy)phenyl]methylamide

https://huagongshe.com/reaction/735036

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenylpropiolic AcidHCID 69475—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant{4-[2-(Diethylamino)ethoxy]phenyl}methanamineHCID 235944—
ReactantO-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 2733207—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
Product3-Phenylpropynoic acid-[4-(2-diethylaminoethoxy)phenyl]methylamideHCID 68816767—

Reaction Steps

A solution of 0.29 g (2 mmol) of phenylpropynoic acid, 0.44 g (2 mmol) of [4-(2-diethylaminoethoxy)phenyl]methylamine, 0.7 g (2.2 mmol) of TBTU, 0.29 g (2.2 mmol) of HOBT and 0.51 mL (3 mmol) of Hünig base in 30 mL of THF and 2 mL of DMF is stirred for 14 hours at ambient temperature. The reaction mixture is evaporated down. The purification is carried out by column chromatography on silica gel (dichloromethane/methanol (80:20)). Yield: 130 mg (18.5% of theory); C22H26N2O2 (M=350.46); calc.: molecular ion peak (M+H)+: 351; found: molecular ion peak (M+H)+: 351; Rf value: 0.39 (silica gel, dichloromethane/methanol (80:20)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07592373B2
Source datasetuspto-grants-2009_09
ORD IDord-d8977cacbe1e46ffbd03041c4a886eb2
Source noteuspto-grants-2009_09