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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 735101Generated: October 26, 2026

2-[(Pyrrolidin-1-yl)methyl]-1,3-benzoxazol-5-amine → 3-(2-chloro-4-trifluoromethylphenyl)propynoic Acid (2-pyrrolidin-1-ylmethylbenzoxazol-5-yl)amide

https://huagongshe.com/reaction/735101

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-[(Pyrrolidin-1-yl)methyl]-1,3-benzoxazol-5-amineHCID 59766997—
Reactant(2-Chloro-4-trifluoromethylphenyl)propynoic acidHCID 68817422—
SolventDichloromethane methanolHCID 21226129—
Product3-(2-chloro-4-trifluoromethylphenyl)propynoic Acid (2-pyrrolidin-1-ylmethylbenzoxazol-5-yl)amideHCID 57845742—

Reaction Steps

Prepared analogously to Example 2.3.f. from 0.2 g (0.92 mmol) of 2-pyrrolidin-1-ylmethylbenzoxazol-5-ylamine and 0.2 g (0.8 mmol) of (2-chloro-4-trifluoromethylphenyl)propynoic acid. Yield: 290 mg (81% of theory); C22H17ClF3N3O2 (M=447.84); melting point: 218° C.-223° C.; calc.: molecular ion peak (M+H)+: 448/450 (Cl); found: molecular ion peak (M+H)+: 448/450 (Cl); Rf value: 0.33 (silica gel, dichloromethane/methanol (19:1)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07592373B2
Source datasetuspto-grants-2009_09
ORD IDord-b180f209dbdd426fab81be89cbf51b24
Source noteuspto-grants-2009_09